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Tuesday, August 20, 2002

Fields medals awarded

The 2002 Fields medals, often thought of as the equivalent of Nobel Prizes in Mathematics, have been awarded to Laurent Lafforgue and Vladimir Voevodsky.

Lafforgue was awarded the medal for his work on the Langlands program, while Voevodsky was recognised for his work in algebraic geometry.

The Fields medals are awarded every four years at the International Congress of Mathematicians, this year being held in Beijing.

[Update: Read the MathWorld news report]

Pluto cooling update

You read about Pluto cooling here five days ago here but CNN just picked it up today... Curiously, the CNN take on the topic is that Pluto is experiencing global warming whereas the press release from the observatory (and my interpretation of the results) says that Pluto is going through a cooling. It is possible that the surface may be warming slightly but does that justify reversing the meaning of the headline? Strange.

 

Today is...

1930: Phil Farnsworth awarded a patent for television
1960: Russian dogs Belka and Strelka return from space
1977: Launch of Voyager 2

Understanding risk

One of my pet hates is the extreme irrationality of people when faced with certain risks. Yes, I know the fears are understandable, it's just that it bugs me that in a world where we have so much information available to us, we can't seem to make decisions based on anything more than gut instincts...

Part of breaking down irrationality would seem to require some basic information concerning why people worry about particular things. Today's New York Times (free registration required) has a nice piece that outlines some of the main reasons for worry and gives examples of how people react.

After you've read the piece, think about how many government policy decisions seem to be based on irrational fears. But we can't just blame a government - we are all far too ready to look for a scapegoat for any problem or risk. Instead, we must consider how our opinions about risk are driving government policy decisions. As a simple example, there is incontrovertible evidence that many lives would be saved if everybody wore seatbelts in cars yet governments in some jurisdictions won't enforce it by law because of public pressure against it.

12,000 frames per second film camera

The new tool film-makers will go crazy over can shoot the equivalent of 12,000 frames per second. Unfortunately, the camera can only shoot 120 frames at a time as it works by rotating a loop of film around a drum that rapidly revolves.

Just as The Matrix popularised the use of sequenced still cameras to give the impression of a fast-moving camera circling around a subject, don't be surprised if you suddenly see lots of films breaking into ultra-slow motion for a few seconds as they insert the results of this new toy.

The camera is bound to be useful for other things besides entertainment. Just as it is based on high-speed scientific photography, this technology or something similar will probably make it back into the lab where high-resolution is required as well as high-speed.

Read more and see a sample at CNN (Sample requires CNN realplayer media pass)


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