Saturday, June 11, 2011
Friday, September 17, 2010
Many organizations have been making predictions for a peak in world oil production between 2010 and 2015, followed by a decline. This could bring profound changes in global markets, the balance of power and political upheaval. Check out this article in Der Spiegel, this article based on a seminar by the president of Petrobras, and this article in The Guardian.
Wednesday, September 15, 2010
Interesting article in The Guardian on China's new drive to guarantee access to raw materials in Brazil.
Saturday, July 10, 2010
Friday, July 09, 2010
An interesting, personal review of Douglas Hoftadter's book, fittingly titled "Gödel Escher Bach: An Endless Geek Bible". This book is one of the only three "Further Reading" suggestions I gave at the end of my popular science book on quantum computing.
Sunday, July 04, 2010
Thursday, May 20, 2010
Wednesday, May 12, 2010
China is suffering a wave of attacks of deranged men on kindergartens - reminds me of the high-school shootings in the U.S., minus the guns.
Saturday, May 08, 2010
I've just learned about commonplacing - the act of taking down quotes, poems, pieces of news in a commonplace book, a kind of personal scrapbook. This was common in England and the U.K. in the 17th century, but somehow died off since. The first thing I thought when I read about these was: these are just like blogs! Wikipedia tells me this analogy has (of course) been pointed out before.
Sunday, April 04, 2010
Saturday, February 20, 2010
A new chapter of the story of the man of Flores: apparently they may have arrived there over a million years ago! They'd be something like preserved australopithecus (ci?), having lived in Flores as late as about 17000 year ago.
Wednesday, January 20, 2010
Saturday, August 08, 2009
Chirac reveals that Bush pleaded with him about invading Iraq on the basis of faith:
Read the rest of this article.
Incredibly, President George W. Bush told French President Jacques Chirac in early 2003 that Iraq must be invaded to thwart Gog and Magog, the Bible’s satanic agents of the Apocalypse.
Honest. This isn’t a joke. The president of the United States, in a top-secret phone call to a major European ally, asked for French troops to join American soldiers in attacking Iraq as a mission from God.
Now out of office, Chirac recounts that the American leader appealed to their “common faith” (Christianity) and told him: “Gog and Magog are at work in the Middle East…. The biblical prophecies are being fulfilled…. This confrontation is willed by God, who wants to use this conflict to erase his people’s enemies before a New Age begins.”
Read the rest of this article.
Saturday, June 13, 2009
In the spirit of boy scout badges, check out the Science Scout badges. Some which I may claim:
The “Nyah nyah nyah nyah nyah, I’ve got a radio gig” badge.
The “quantum mechanics… I soooo get it” badge.
The “science deprives me of my bed” badge (LEVEL II).
The “non-explainer” badge (LEVEL I)- Where the recipient can no longer explain what they do to their parents.
The “I will crush you with my math prowess” badge.
The “has frozen stuff just to see what happens” badge (LEVEL III).
The “destroyer of quackery” badge. (In which the recipient never ever backs down from an argument that pits sound science over quackery.)
The “Nyah nyah nyah nyah nyah, I’ve got a radio gig” badge.
The “quantum mechanics… I soooo get it” badge.
The “science deprives me of my bed” badge (LEVEL II).
The “non-explainer” badge (LEVEL I)- Where the recipient can no longer explain what they do to their parents.
The “I will crush you with my math prowess” badge.
The “has frozen stuff just to see what happens” badge (LEVEL III).
The “destroyer of quackery” badge. (In which the recipient never ever backs down from an argument that pits sound science over quackery.)
Thursday, June 11, 2009
Sunday, May 17, 2009
Fold-it @ home is a game that lets players try to find lower-energy configurations for folded proteins. This may have applications in drug design among other things. The game has already revealed a 13-year-old protein folding prodigy, and has resulted in results that beat what PhD-holding biochemists have achieved.
Friday, May 08, 2009
Monday, May 04, 2009
A report on a fire in an underground coal mine that has been raging for half a century. Such fires are common, very hard to extinguish, and produce enormous amounts of CO2.
Friday, April 24, 2009
Just last night there were raised fears of a pandemic of swine fever in Mexico city - universities, schools and kindergartens were closed for the day, and bosses were asked to be tolerant of absences today. There are an estimated 1000 cases and 45 deaths reportedly caused by the virus.
Tuesday, April 14, 2009
Thursday, March 26, 2009
Brilliant people: a profile of Freeman Dyson in the NYT, and an essay by Terry Tao on how a ship can sail faster than the wind.
Wednesday, February 04, 2009
Friday, January 23, 2009
Saturday, January 17, 2009
I've read a couple of books by Roberto Bolaño recently, and recommend him. Read here about his last book.
Tuesday, January 13, 2009
Sunday, January 11, 2009
The probes Spirit and Opportunity go on exploring Mars, 5 (Earth) years after arrival. Their projected longevity was just 3 months.
In mid-2007 one of Spirit's wheels got stuck, so Spirit has been dragging it since. This, together with dust accumulation on the solar panels, has restricted somewhat how much it can wander.
Opportunity, on the other hand, is thriving. As summertime approaches with its solar energy bounty, it is set to do a 15 Km overland trip to an interesting crater named Endeavor. Good luck!
Saturday, January 10, 2009
Today I've been reading about low-tech refrigerators - electricity-free, they can keep food up to 10oC lower than ambient, using evaporation as the cooling mechanism. First I bumped into this piece of news about a young English woman and her invention; then I read up about Zeer pots, used throughout Africa. They're an adaptation of an ancient design. In northeastern Brazil the local people use similar earthenware jars to keep water fresh.
Later on I found this old design also based on evaporation, called an absorption-gas refrigerator. The Icyball was designed in 1927, and run on anything combustible. Part of it is heated, which in turn keeps the other side close to 0C for a day or so. This design has been improved recently, to run on non-toxic liquid (the original used ammonia). Check out a short video about this invention.
Monday, January 05, 2009
Friday, November 28, 2008
An article claiming that the U.S. finantial crisis bailout has already cost "more than the Marshall Plan, Louisiana Purchase, moonshot, S&L bailout, Korean War, New Deal, Iraq war, Vietnam war, and NASA's lifetime budget -- *combined*! ".
Thursday, November 13, 2008
Sunday, November 02, 2008
Saturday, October 18, 2008
An example of an (almost) unreported change: incandescent light bulbs are being banned from Europe in 2010.
Saturday, August 02, 2008
Sunday, July 27, 2008
Monday, June 16, 2008
This start-up company modified E. Coli so that it digests wood chips, straw and other such materials to produce oil.
Tuesday, June 03, 2008
A 1968 video with "the first public use of a mouse, as well as examples of cutting, copying, pasting, teleconferencing, video conferencing, email, and... hypertext."
Tuesday, May 27, 2008
Monday, May 05, 2008
Saturday, April 12, 2008
A paper showing how computers can make automated scientific discovery of new drugs. This is much more straightforward in maths, where computers can prove theorems. My computer routinely does that - but the theorems are not very interesting.
Thursday, March 20, 2008
Saturday, March 15, 2008
Sunday, October 28, 2007
Some people are building and releasing high-altitude ballons with cameras, communication gear and sensors. Seen here the result of one such launch: pictures and films taken from near-space, at an altitude of about 30 Km, where the sky is black and one can see that the Earth's curved.
Tuesday, October 23, 2007
The Great Pacific Garbage Patch, also called Trash Vortex, in an area in the Pacific where mostly plastic garbage accumulates due to sea currents. The area is around the size of Texas, with about 6 Kg of plastic for each Kg of plankton.
Tuesday, October 02, 2007
My colleague Scott Aaronson is in a funny, and very unexpected, position. He got a text about quantum mechanics plagiarized and used in a commercial in which two fashion models discuss quantum mechanics (!!), just before hitting the catwalk. That's so funny!
Thursday, May 17, 2007
There's a strong suspicion that Russia is behind a three-week wave of cyber-attacks on Estonia. If true, this would be the first such attack ever from a nation-state against another.
Tuesday, April 24, 2007
10 steps that could turn the U.S.A. into a fascist state, and how some of them are being taken by the Bush administration.
Saturday, March 31, 2007
A free collection of short stories. Very short indeed: 6 words each. Hemingway's:
"For sale: baby shoes, never worn."
"For sale: baby shoes, never worn."
Thursday, March 29, 2007
An article in The Guardian about how cheap, acessible, open-source rapid prototyping machines can, in perhaps 10 years, create a new industrial revolution.
Tuesday, March 20, 2007
An article in New Scientist about the strange new properties of a little-known crystal. In its pure form, it may be a new state of matter, a so-called string-net fluid. There's some relation to anyons and topological computing, in case you're an expert in such things...
Friday, February 23, 2007
The Cremaster film cycle by visual artist Matthew Barney has impressed me. Check out some material on it at the Gugenheim Museum website.
The company Virgin Galactic has been set up in Britain to take tourists to the edge of space. It hopes to offer flights starting in 2009, costing about £10^5 per seat. It's also partnering with NASA to develop cheaper alternatives, which may be used to train astronauts as well. Their spaceship is based on SpaceShipOne, the first private spaceship to go into space.
Tuesday, January 23, 2007
Worrying news about a deadly strain of tuberculosis arising in South Africa - 98% fatality rate, airborne, death within 2 weeks.
Sunday, December 17, 2006
A list of 50 English-language films which deserve to be seen, but for one reason or another have been neglected so far.
Thursday, December 14, 2006
Sunday, December 03, 2006
A diet with radical calorie restriction is known to prolong life in many organisms. This reporter has been investigating the story, talks to people who follow it and has been doing it himself for 9 weeks now.
Sunday, October 29, 2006
Saturday, October 21, 2006
A profile of Edward O. Wilson, remarkable entomologist and writer. His mission now is to convince the religious in the U.S. to support science in preserving biodiversity in the planet.
Monday, October 09, 2006
A list compiled by The Observer of the best English (and Commonwealth) novels in the last 25 years. I've enjoyed reading about 10 of them.
Saturday, October 07, 2006
Tuesday, September 12, 2006
Polyphasic sleep: 2-3 h of short naps a day, instead 8 ininterrupted hours. Seems like a hard schedule to adapt to.
Monday, September 11, 2006
On the accidental discovery of a "miracle drug" that's been effective in bringing back to life some patients in deep coma.
Tuesday, August 29, 2006
Biomimicry: using ideas from nature in engineering. See the velcro here? An article about biomimicry in energy production.
Monday, August 21, 2006
Thursday, August 03, 2006
This guard dog was fed up with all the attention paid to these teddy bears - what did they have that he didn't? So when his handler was a bit distracted he destroyed all of the teddy bears, worth tens of thousands of dollars.
The dog seems very pleased in the picture.
Saturday, July 22, 2006
Here's an evaluation of the current situation in Afghanistan, by the most senior British military commander in the country. It's disheartening - the poppy production is at an all-time high, the country situation is "close to anarchy" and the violence has killed 700 people over the last few weeks.
Saturday, July 08, 2006
Sunday, June 11, 2006
An interview with Ann Coulter, high-profile right-wing American polemicist. Extract:
"Some of Coulter's more charming opinions are that the country would be better off if women couldn't vote, that in December 2001 America should have attacked France, and that the death penalty should be brought back everywhere."
"Some of Coulter's more charming opinions are that the country would be better off if women couldn't vote, that in December 2001 America should have attacked France, and that the death penalty should be brought back everywhere."
Monday, June 05, 2006
A few random results from leisurely web-browsing:
A Lego difference engine.
The strange but compelling site of visual artist Esao.
GNU radio is a multipurpose software controlled radio that can record digital TV, all FM radios simultaneously, GPS signals, etc, all under an open-source license.
Monday, May 29, 2006
The story of forced migration out of the island of Diego Garcia, so that it could be sold to the U.S., who built a military base there.
Wednesday, May 24, 2006
A witty article in The Guardian, from the reviewer who demolished The da Vinci Code (the book), writing about the film. Quote:
"Has our culture now created a sort of genetically modified turkey - the critic-proof product?"
"Has our culture now created a sort of genetically modified turkey - the critic-proof product?"
Tuesday, May 23, 2006
A conference of synthetic biologists is discussing guidelines for the creation of new life forms. Some disturbing advances happened in 2002 when the polio virus was reconstructed from scratch, and last year when the 1918 flu virus was reconstructed from frozen body remains.
Tuesday, May 09, 2006
Saturday, April 29, 2006
Archaeoacoustics: the study of how one might recover sounds inadvertently recorded while a brush painted a canvas, or a stylus was working on clay. This may seem far-fetched, but some serious (or less serious) proposals have been floating around for a while. Check this site for a review of the hoaxes and real possibilities.
Other structures may be designed to create auditory effects, now or in the past. Check this article about it. Some examples are the steps in ancient American pyramids and some modern sculptures. Hear the chirped echo from an ancient temple in Teotihuacan, Mexico:
Other structures may be designed to create auditory effects, now or in the past. Check this article about it. Some examples are the steps in ancient American pyramids and some modern sculptures. Hear the chirped echo from an ancient temple in Teotihuacan, Mexico:
Saturday, April 22, 2006
This is an ambigram: try looking at it upside down. I had never heard of those, but there are many homepages dedicated to ambigrams...
Tuesday, April 18, 2006
This guy wants to do a series of trades, starting with a paper clip and ending up with a house to live in. Now he's already got a house to live in for one year in Arizona.
Wednesday, April 05, 2006
Tuesday, April 04, 2006
Gary Younge in The Guardian on whether there's a "new McCarthyism" going on in U.S. academic institutions.
Thursday, March 23, 2006
An cool article by a Norwegian professor giving reasons why a high school student should choose to take Maths.
Tuesday, March 21, 2006
Tuesday, March 14, 2006
On how to use genetic algorithms and user feedback to create or choose objects with elusive qualities, such as beatiful pictures.
Friday, March 10, 2006
This is a picture of the Z-Pinch device at Sandia National Labs. It's basically a huge capacitor, used for researching problems such as this.
Monday, March 06, 2006
Amnesty International points out in a report that 14000 people are detained without trial (à la Guantánamo) in Iraq.
Saturday, March 04, 2006
A physicist improved an algorithm used for biological imaging - and it now also solves sudoku puzzles easily.
Monday, February 13, 2006
Friday, January 27, 2006
Have a look at birth rates in Europe, where 2.1 per woman is considered to be population replacement level:
Ireland 1.99
France 1.90
Norway 1.81
Sweden 1.75
UK 1.74
Netherlands 1.73
Germany 1.37
Italy 1.33
Spain 1.32
Greece 1.29
An article in the Guardian discusses the problem in Germany.
Ireland 1.99
France 1.90
Norway 1.81
Sweden 1.75
UK 1.74
Netherlands 1.73
Germany 1.37
Italy 1.33
Spain 1.32
Greece 1.29
An article in the Guardian discusses the problem in Germany.
Wednesday, January 25, 2006
An article on what would happen should China reach current U.S. levels of resource consumption. China has recently surpassed the U.S. in absolute resource consumption.
Tuesday, January 24, 2006
On a controversial proposal to reclassifly chimps under the genus Homo, based on DNA studies. Curiously enough, that was the accepted classification between 1775 and 1816.
Friday, January 20, 2006
Wednesday, January 18, 2006
Let me explain one strange way of phrasing a theorem known as the Banach-Tarski paradox. It is possible to take a solid ball, cut it into five (infinitely convoluted) pieces, and reassemble the pieces into two balls, each with the same volume as the original.
Monday, January 16, 2006
Sunday, January 15, 2006
Thirty years ago, the first life-swap by a conceptual artist. As a bonus, I've just learned an interesting word: discombobulate.
Friday, January 13, 2006
I've always known that my brain doesn't work well in the morning. Now there's scientific evidence about this.
Wednesday, January 11, 2006
Saturday, December 17, 2005
An essay by Harold Bloom on how American literature can help understand the trajectory of his country.
Saturday, December 10, 2005
Friday, December 09, 2005
The publishers Penguin now have podcasts available, I should check them out. By the way, I got this through the Guardian's nice CultureVulture blog.
On the first winner of The Guardian's Book Award: "Stuart, a life backwards" by Alexander Masters, a Cambridge-based writer (by the way, he has a BA in physics and PhD in Maths).
Thursday, December 08, 2005
Have a look at a 2m-wide, 200Kg jellyfish. They are infesting Japanese waters - fortunately, they're edible.
Thursday, December 01, 2005
A list of relatively cheap Christmas presents for the technologically-driven DIY'ers, from Make Magazine.
Thursday, November 24, 2005
A student sold space on his website by the pixel - U$1 a piece. He's already sold about U$600 000 worth of it- with minimal cost.
Enquanto no Brasil algumas cidades experimentam fechar os bares mais cedo para diminuir a criminalidade, a Inglaterra vai no caminho contrário: a partir de hoje milhares de pubs e outros estabelecimentos tiveram as horas de funcionamento prolongadas.
Wednesday, November 23, 2005
Tuesday, November 08, 2005
This service allows you to send yourself an email - to be delivered at any date in the future! a kind of homemade time capsule. It would be interesting to send a huge attachment with all of your mail, for example, if one weren't concerned about confidentiality. So I just sent a small note to myself. What would, or will, you say to yourself in the future? or to others?
Monday, November 07, 2005
There have been claims that one can create a state of the hydrogen atom which has a closer orbit than the ground state's, yielding much energy in the process. I'm highly skeptical, but curious, nevertheless. An article in The Guardian about the controversy, the website of Black Light Power, the company making the claim.
Monday, October 31, 2005
Sunday, October 30, 2005
An article by George Dyson in The Edge about the developtment of computers, from von Neumann's early design to Google, Inc.
Friday, October 28, 2005
Down-to-earth maths: an article proving that a wobbly tables can be fixed just by rotating it (modulo some assumptions).
Wednesday, October 26, 2005
Saturday, October 15, 2005
Today I read about Philo Farnsworth, teenage american inventor of the TV. It reminded me that the inventor in Futurama is also named Farnsworth, probably not a coincidence...
I like Futurama, it has very smart references and in-jokes for scientists. Check out this webpage and links inside for some of that. Dave Bacon also points out to a reference to a near-failure of Fermat's theorem in a Simpson's episode.
I like Futurama, it has very smart references and in-jokes for scientists. Check out this webpage and links inside for some of that. Dave Bacon also points out to a reference to a near-failure of Fermat's theorem in a Simpson's episode.
Monday, October 10, 2005
Tuesday, September 27, 2005
"The Game" is a book about a secret society of men who share tips on infallible ways of picking up women in bars.
Sunday, September 18, 2005
As the name suggests, the Internet Archive is a non-governmental organization that charts the web and preserves records of its growth for studies and for the future.
An article in The Guardian about bailes funk (the music/social phenomenon arising from shanty towns in Rio).
Saturday, September 17, 2005
An extract of an unfinished book by Janna Levin, provocatively (at least for me) called "A MADMAN DREAMS OF TURING MACHINES".
Friday, September 16, 2005
A compulsive blogger has summarized the best entries each month for the last five years of the blog BoingBoing.
Tuesday, September 13, 2005
An article in The Guardian piecing together what happened during the Uzbek demonstrations, when hundreds or thousands of people got killed.
Tuesday, September 06, 2005
An article in New Scientist describing a parasitic worm that infects land-living grasshoppers and somehow makes them jump in the water to die, so that the worms can leave their host and live in the water. Isn't science better than science fiction?
Sunday, September 04, 2005
Thursday, September 01, 2005
Friday, August 26, 2005
"Teaching Turing", a fun and well-designed website which teaches about Turing machines by allowing you to program one.
Wednesday, August 24, 2005
Wednesday, July 27, 2005
The Russian space program is getting ready to offer a tourist trip to orbit the Moon. How much's the ticket? 100 million dollars.
Monday, July 25, 2005
Genetically modified crops have been shown to transfer genes to a weed, creating a pesticide-resistant super-weed.
Friday, July 22, 2005
On a program that generates random (bogus) scientific papers. There are also videos of the programmers delivering some papers in a mock seminar.
Wednesday, July 20, 2005
Last week I visited some pyramids in Teotihuacan, Mexico. Here's the website of a retired carpenter testing out some simple techniques that could have been used to build those. Here's a video about his project of building his own 'Stonehenge' that way.
Sunday, July 17, 2005
Wednesday, July 06, 2005
Keeping on the subject of tough "sports": an article about the Pakistani version of Polo. It says:
"Some regulations were introduced about five years ago to cut down on fights. Now bashing an opponent in the face or hacking his horse's legs are illegal, said the touch judge, Yaqub Masroof. "But only if it is intentional."
The best players have a strong horse, a wrench-like wrist and a backside of rubber. Still, injuries are common. Legs are broken, skulls cracked, and one player died from a heart attack mid-match."
"Some regulations were introduced about five years ago to cut down on fights. Now bashing an opponent in the face or hacking his horse's legs are illegal, said the touch judge, Yaqub Masroof. "But only if it is intentional."
The best players have a strong horse, a wrench-like wrist and a backside of rubber. Still, injuries are common. Legs are broken, skulls cracked, and one player died from a heart attack mid-match."
Tuesday, July 05, 2005
Two of my favourite museums, the conjoined Pitt Rivers and Natural History Museums in Oxford have won a prize as the most 'family friendly' museums in the U.K. They're really worth a visit if you happen to visit Oxford, I think of the Pitt Rivers as Indiana Jones' ware-house, and you'll understand why if you go there.
Monday, July 04, 2005
Human footprints dated 40000 years old were found in Mexico. This strengthens the hypothesis that humans arrived in the Americas much before what most researchers believed. Aqui um artigo mais antigo em português sobre o problema.
Thursday, June 30, 2005
Uma entrevista com o ministro da Saúde Humberto Costa, explicando como foi a decisão de quebrar a patente internacional de um remédio anti-HIV.
Saturday, June 25, 2005
An article by historian Eric Hobsbawm analyzing the American neo-conservative drive for world supremacy.
Friday, June 24, 2005
Monday, June 20, 2005
Saturday, June 18, 2005
Friday, June 17, 2005
Here's a 3 minute video of the Solvay conference in 1927. This is the meeting where some of the most important features of quantum mechanics were first discussed, barely 5 years after its invention. There were 29 participants, 17 of which had got or were to get Nobel prizes. I'd have loved to eavesdrop on this...
Thursday, June 16, 2005
Sunday, June 12, 2005
Saturday, June 11, 2005
Friday, June 10, 2005
Monday, June 06, 2005
Sunday, June 05, 2005
Extinct cave bear DNA sequenced. The researchers responsible for that are now talking about doing it to Neanderthals.
Friday, June 03, 2005
I've been away for a while, in Vienna, Cambridge and Oxford. Here's an article about a painting of Klimt's that decorates the hall in Vienna University where I spent most of last week.
Saturday, May 14, 2005
An article about the history of suicide missions (early Christians' martyrdom, Kamikazes, bombers in Iraq, ...).
Thursday, May 12, 2005
Tuesday, May 10, 2005
An interesting debate in the online forum Edge about gender and science: Elizabeth Spelker vs Steven Pinker.
Friday, May 06, 2005
Wednesday, May 04, 2005
Bush's EUA gives money for Aids programmes abroad, but with strings attached: there must be policies of no abortion, no birth control, no prostitution and abstinence-based sex education. Brazil has resisted the pressure, turning down the money. Brazil has a very good AIDS programme of its own and can afford to do that, unfortunately the situation is much different in most of the developing world.
Sunday, May 01, 2005
Thursday, April 28, 2005
An interesting article about a reporter who visits the most exotic (and sometimes dangerous) destinations in the world: Somaliland, Transnistria, Nagorno-Karabakh,...
Sunday, April 24, 2005
Some haunting testimonials about the Chernobyl accident, 19 years later. This woman goes for motorcycle rides around Chernobyl, and has written a website about it, with plenty of pictures [obrigado Tatiana!].
An interview with the man who saved a million lives. He's the British medical statistician who proved that smoking causes lung cancer.
Thursday, April 21, 2005
Wednesday, April 20, 2005
An article in Le Monde Diplomatique on the rise of religious politicians (especially evangelicals) in Brazil.
Saturday, April 16, 2005
Friday, April 15, 2005
The Webby awards, the 'leading international award honoring excellence in Web design, creativity, usability and functionality'.
Thursday, April 14, 2005
On Russian aircraft with unusual design. I think the design derives from Ekranoplans, which I commented on before in this blog.
Monday, April 11, 2005
Wednesday, April 06, 2005
If you're Brazilian and have had contact with other Romance languages, you'll know that with a little experience it's possible to understand and be understood by Italians, French and Spanish people. This partial learning of other languages of the same family is much faster than learning a different language in the usual way, and deserves further study. This article is about some projects studying this.
Thursday, March 31, 2005
Tuesday, March 15, 2005
Scientists have implanted human brain cells into mice fetuses, creating a chimera -- a mixture of different species. Many similar experiments are being planned, but much more thought must go into looking at the consequences of such research. Other chimeras have already been created, one had the head of a goat and the body of a sheep.
Friday, March 04, 2005
Thursday, March 03, 2005
Tuesday, March 01, 2005
Mumbai is razing its slums, without first offering a viable housing alternative to its poor. More than half of its inhabitants live in slums.
Monday, February 28, 2005
Electrodes have been implanted in patients' brains, to stimulate parts of it and alleviate depression.
Sunday, February 27, 2005
Friday, February 25, 2005
Remember Dr. Strangelove's unwanted nazi salutes? there is a genuine neurological condition just like that, called 'anarchic hand'. [via monochrom]
Thursday, February 24, 2005
Wednesday, February 23, 2005
About how the U.K. came to be involved in the Iraq war. Quote:
[The full picture of how the government manipulated the legal justification for war, and political pressure placed on its most senior law officer, is revealed in the Guardian today.]
[The full picture of how the government manipulated the legal justification for war, and political pressure placed on its most senior law officer, is revealed in the Guardian today.]
Sunday, February 20, 2005
Two reporters from The Guardian explain why the threat of nuclear strikes is greater now than it was during the cold war. The general public is completely oblivious to that, which is dangerous.
An interview with Kazuo Ishiguro, who talks about his most recent book ('Never let me go'), his life measured in 5-year-long stretches dedicated to each novel, and mortality.
Friday, February 18, 2005
An article on recently released documents about the torture being practiced by the U.S. army, and about two new books on the same subject. Disgusting, revolting, not unexpected at all.
Wednesday, February 16, 2005
I have posted here about the R$1000 popular computer project being considered in Brazil. Here's an article about a more ambitious project, of a U$100 laptop for developing countries.
A participant in a reality show in the U.S. has killed himself. Apparently this is the second such case, a Swedish participant killed himself after being voted off the show.
Tuesday, February 15, 2005
Saturday, February 12, 2005
An interview with an autistic savant -- he does complex mathematical calculations in his head, but unlike others he can talk about it. This may help scientists understand the condition, and how 'normal' brains work.
Thursday, February 10, 2005
The Guardian asked many leading scientists what the next big scientific revolution will be. Here are the answers.
Tuesday, February 08, 2005
Over two months after the Indian Ocean tsunami, about two thirds of the relief money promised to the U.N. has not yet been delivered. Judging by previous disasters, it may never be.
Monday, February 07, 2005
A book on Mumbai (old Bombay) in India. I wouldn't mind getting to know it, to compare with other chaotic and interesting cities such as Rio and Naples.
Sunday, February 06, 2005
A crime thriller which is a mathematical thriller as well. It is also set in Oxford, where I studied. I'm curious now...
Monday, January 31, 2005
An article with estimates about how long it would probably be between the first signs of a new dangerous flu virus and a pandemic.
Sunday, January 30, 2005
A strand of avian flu is being transmitted from human to human in Vietnam. It seems to be lethal in the majority of cases. There is the scary possibility of a pandemic.
Friday, January 28, 2005
Thursday, January 27, 2005
This sculpture studio in the Netherlands makes 3-d models out of classic paintings and cartoons. (Via boingboing)
Simon Baron-Cohen on the differences between the sexes, following a controversial address by Harvard's president.
Here's a list of 10 good books about science, from The Guardian. This list blurs the distinction between science and literature -- it includes writes such as Primo Levi and Norman Mailer, and all books have withstood the test of time, well, they were all written more than 10 years ago. I've read two of them: 'The diversity of life' by Edward O. Wilson and 'The language instinct' by Stephen Pinker, and really recommend those.
Wednesday, January 26, 2005
A little history of alternative keyboard designs, and a contemporary challenger to the QWERTY keyboard: abKey.
Monday, January 24, 2005
Gary Yonge on Bush's hypocritical 'quest to end tyranny'. He lists some of the repressive regimes supported by the U.S.. He also argues that Bush's perceived mission is not in the direction of bringing Cuba to the standards of freedom of the U.S., it's more like bringing all the world to the standards of freedom of a little part of Cuba - Guantanamo Bay.
A little (edited) part of Bush's inauguration address, from Yonge's article:
"America will not pretend that jailed dissidents prefer their chains [apart from in Abu Ghraib and Guantánamo Bay], or that women welcome humiliation and servitude [apart from in Saudi Arabia] or that any human being aspires to live at the mercy of bullies [apart from Uzbekistan and Israel]."
A little (edited) part of Bush's inauguration address, from Yonge's article:
"America will not pretend that jailed dissidents prefer their chains [apart from in Abu Ghraib and Guantánamo Bay], or that women welcome humiliation and servitude [apart from in Saudi Arabia] or that any human being aspires to live at the mercy of bullies [apart from Uzbekistan and Israel]."
Thursday, January 20, 2005
Monday, January 17, 2005
Saturday, January 15, 2005
The Huygens spaceprobe has landed successfully in Saturn's moon Titan, revealing a very interesting world completely new to science. An article about it, some pictures of Titan's surface.
Thursday, January 13, 2005
I'm back in Canada!
An investigative article in The Guardian about the controversies surrounding the discovery of the Flores Man.
An investigative article in The Guardian about the controversies surrounding the discovery of the Flores Man.
Tuesday, December 07, 2004
An article about pseudo-random numbers and their uses. I've been interested by randomness in physics and mathematics for years...
Saturday, December 04, 2004
Sunday, November 21, 2004
From BoingBoing, a piece of web zen: bad English assembly instructions, weird signposts, old-school instruction films and such jewels.
Friday, November 19, 2004
Do you think you get too much spam? Me too. But it could be worse -- Bill Gates receives 4 million emails a day.
Friday, November 12, 2004
Thursday, November 11, 2004
Sunday, November 07, 2004
The insurgency in Iraq is as strong as it's ever been, and now the U.S. election is over, marines are getting ready to take Fallujah in what's likely to be a bloodbath.
With the reelection of Bush, the U.S. is getting ready to launch weapons in space, thus violating yet another international treaty.
Saturday, November 06, 2004
A talk about how the main problems in analytical philosophy during the last 60 years are represented in the works of Monty Pithon.
Dois surfistas brasileiros com um inglês meio ruim estavam pegando um avião nos Estados Unidos. Quando passaram no controle de segurança e as malas estavam sendo abertas, um deles disse ´Tem uma bomba de sucção nessa mala´, só que traduziu bomba de sucção como ´bomb´ ao invés de ´pump´. Resultado: foram presos e correm o risco de pegar até 5 anos de prisão, ou U$250000 de multa.
Saturn's moon Titan is receiving a visit -- the Huyghens, a robot launched from the Cassini probe. It's going to go down into Titan's atmosphere, recording data as it descends, but scientists do not know whether it'll land with a thud, a splash or a squelch.
Friday, November 05, 2004
A critical view of AMD's 'popular computer' black-box. I wonder if that's the system Brazil is adopting, it may be a mistake.
Wednesday, November 03, 2004
Monkeys in a temple in India are attacking children, which apparently hasn't happened before. Are they also in a foul mood?
Today is shaping up as a dark day for the world. I don't think I feel like commenting on it. Let's cheer up.
About 20% of the Arctic ice cap has already melted, and the rest should have melted by 2070. Of course this insalubrious event could be partially reversed in the case of a nuclear (or 'nucular' , perhaps I should say) winter, which suddenly looks like a not unlikely possibility.
About 20% of the Arctic ice cap has already melted, and the rest should have melted by 2070. Of course this insalubrious event could be partially reversed in the case of a nuclear (or 'nucular' , perhaps I should say) winter, which suddenly looks like a not unlikely possibility.
Thursday, October 28, 2004
More on the 'hobbit' hominids. It turns out the natives of the islands where the bones were found have tales of small, hairy men and women -- there's even a possibility that some surviving specimens exist. This would overturn dramatically our self perception of the ruling species on Earth, think of the consequences for ethics and religion for example.
Wednesday, October 27, 2004
Fossils were found of a new Homo species that coexisted with modern humans about 18000 years ago. They were 1m tall, and are being nicknamed 'the hobbits'.
Monday, October 25, 2004
One of my first posts in this weblog was about Wikipedia, the open-source collaborative online encyclopedia. It already has more than 1 000 000 entries. More about it.
Sunday, October 24, 2004
Saturday, October 23, 2004
This woman is hacking the hardware and software of Aibo and similar robot dogs to implement pack behavior.
An article giving a user's view of the new endeavour of Google, Desktop search. It basically indexes and searches your files using some of the same algorithms that Google uses, as fast as Google does, and seamlessly puts the two together whenever you do a search. For people with many files and extensive email correspondence, it will enable you to find stuff you'd never thought you'd see again.
Friday, October 22, 2004
A small sample of cultured rat's brain cells has been interfaced with a computer, and 'programmed' to control a simulated fighter plane. Sounds like science fiction, but it's real.
The James Bond-like escape a Soviet spy did from a British prison, as reported by the Guardian in 1966.
Thursday, October 21, 2004
O governo brasileiro tem um projeto de computador popular, que deve ser comercializado ate dezembro. Custara R$1000, e podera ser financiado por R$50,00 por mes. A ideia e' vender 5 milhoes de computadores a esses precos subsidiados, que incluem 20h/mes de acesso a internet.
Wednesday, October 20, 2004
On the different forms of vote suppression or plain fraud during the U.S. presidential elections of 2000.
Monday, October 18, 2004
Sunday, October 17, 2004
The Guardian has asked its readers in the U.K. to write to undecided voters in the U.S., to try and influence their vote. Check out some of the feedback: some of it is hate mail!link
Um artigo descrevendo como os físicos estão diversificando suas atividades de pesquisa, e atacando problemas em biologia, sociologia, etc.
Saturday, October 16, 2004
On the balance of the latest invasion of Gaza by Israel: 100 Palestinians dead, among them 20 children under 16.
Wednesday, October 13, 2004
The whole world is sitting powerlessly watching the U.S. presidential election race, which should affect us all immensely. Unfortunately, only U.S. citizens get to vote. Well, the Guardian newspaper in the U.K. has assembled a little manual on how to influence American voters from abroad, by donating money to the campaign, writing personally to an unaffiliated voter in a swing state, or manifesting your ideas on talk-show radio programs.
Hands to arms, fellow world citizens!
Hands to arms, fellow world citizens!
Monday, October 11, 2004
Sunday, October 10, 2004
On the totalitarian dictatorship in Turkmenistan, with details of a cult of personality comparable to that of Mao Tse Tung and Kim Jong Il.
Saturday, October 09, 2004
The future dictionary of America, a politically-charged initiative that saw many writers (re-)define the meaning of expressions such as 'axis of evil', 'condoleesy', 'environment'. Check an extract.
Bush seems to have been wired during the second presidential campaign debate. A bulge was seen on his back (suggesting an electronic device), and recently, during D-day celebrations in France, a voice was captured by CNN saying exactly what the president would say a few moments later. Article in The Guardian.
Wednesday, October 06, 2004
Ariel Sharon's chief aide speaks out, saying the U.S. openly supports Israel and is against a Palestinian state:
"Effectively, this whole package called the Palestinian state, with all that it entails, has been removed indefinitely from our agenda. And all this with authority and permission. All with a presidential blessing and the ratification of both houses of Congress."
"Effectively, this whole package called the Palestinian state, with all that it entails, has been removed indefinitely from our agenda. And all this with authority and permission. All with a presidential blessing and the ratification of both houses of Congress."
Gameshow arrests real criminals -- see quote below. The disquieting thing is that the TV channel involved wants to turn this into a real show.
"Hampshire police invited 150 people to the Great Big Giveaway Show in Portsmouth and offered them a chance to win big prizes.
However, the invitees were wanted for traffic and bail offences, non-payment of fines, common assault, criminal damage and drink-driving and the police used the pretext of the gameshow to entice them out of their homes.
The "guests" were frisked as they arrived and had their identities checked by a police officer dressed in a dinner suit."
"Hampshire police invited 150 people to the Great Big Giveaway Show in Portsmouth and offered them a chance to win big prizes.
However, the invitees were wanted for traffic and bail offences, non-payment of fines, common assault, criminal damage and drink-driving and the police used the pretext of the gameshow to entice them out of their homes.
The "guests" were frisked as they arrived and had their identities checked by a police officer dressed in a dinner suit."
Friday, October 01, 2004
Stop Press! the IgNobel Prizes are out. By the way, today there'll be a couple of Nobel prize laureates here in my institute. And the prime minister.
Tuesday, September 28, 2004
Sunday, September 26, 2004
Saturday, September 25, 2004
Many security analysts and retired Generals of the U.S. army agree: what's going on in Iraq is even less justified, and well-planned, than the campaign against Vietnam.
Friday, September 24, 2004
Wednesday, September 22, 2004
An interview with Stephen King, who has just finished the 7-book series for which he hopes to be remembered in the future.
The short-list for the Man Booker prize. The only author I've read is David Mitchell (number9dream and Ghostwritten), and I quite recommend him.
An article about why the whole world should vote in the U.S. presidential elections. It's a bit of a joke, but there are some good points in the argument, after all we're all afected by the outcome. It also has some statistics of Bush's approval rate in Europe: Kerry would outvote Bush 6 to 1 !
Thursday, September 16, 2004
It has finally happened: the president of the main hotel and catering trade association in France has acknowledged the legendary surliness of French, and specially Parisian, waiters. Quote from the Guardian article:
["Customers are right to complain of a poor or non-existent welcome, an excessively long wait and a lack of basic courtesy and reactivity," said André Dugoin.]
["Customers are right to complain of a poor or non-existent welcome, an excessively long wait and a lack of basic courtesy and reactivity," said André Dugoin.]
Monday, September 13, 2004
Saturday, September 11, 2004
On a follow-up to the article by a Russian journalist, a second one has been drugged upon arrival in Beslan. Apparently someone very powerful is very bothered by the journalism coverage of the massacre.
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