Friday, January 11, 2008

Beautiful and Mysterious Chemical Reactions Create Undulating Brew

Source: http://blog.wired.com/wiredscience/2008/01/video-of-a-beau.html
By Aaron Rowe January 10, 2008 | 3:44:05 AM

Warning: This beautiful ballet of chemical reactions could make you trade your lava lamp for a magnetic stirrer.

When several clear liquids are combined, the mixture quickly changes colors -- back and forth -- over and over again. Like Mitt Romney speaking on social issues, the undulating brew just can't make up its mind.

In 1973, the spectacular demonstration was perfected by Thomas Briggs and Warren Rauscher, two amazing high school science teachers.

Over thirty-five years later, chemists are still trying to fully understand how it works.

What they do know: Several reactions take place at once. One of them produces iodine, which gives the amber color. Hydrogen peroxide reduces other chemicals into iodide ions. Along with normal iodine, the charged particles interact with starch to create it a blue-black color. The speeds of those transformations are constantly changing. As one overtakes the other, the color suddenly changes.

Read More...

Miro 1.1: faster torrenting for better net TV

Source: http://feeds.feedburner.com/~r/boingboing/iBag/~3/214809667/miro-11-faster-torre.html


Miro -- the free and open Internet TV program that lets everyone participate in making and watching video -- has just posted a fantastic update. Version 1.1 includes a new BitTorrent engine that delivers dramatic improvements in download speeds.

Miro combines BitTorrent (a downloading system that gets faster as more people download the same file) with the open VLC video player (which lets you watch every video format without worrying about which program you're using) and RSS technology, so that you can subscribe to any of thousands of channels and get the new videos when they're published. Miro comes from the nonprofit Participatory Culture Foundation, who also make Broadcast Machine, a tool that lets anyone publish channels for their own video.

Miro is also hiring hackers and fundraisers, so here's your chance to help keep the world safe for open video. Link

(Disclosure: I am on the Board of Directors for the nonprofit Participatory Culture Foundation)

Read More...

Chip with its own Peltier cooler

Source: http://feeds.feedburner.com/~r/boingboing/iBag/~3/214821578/chip-with-its-own-pe.html

North Carolina's Nextreme has announced a chip with its own built-in Peltier cooler -- a cooling system that uses electricity to move heat from one side of a surface to the other. These are historically very expensive to use -- bulky and energy hungry -- but many overclockers swear by them to keep their PCs running cool. Nextreme proposes to use this to make self-cooling chips that spot-cool different places on a chip, shunting exhaust heat towards fans or vents. Ars Technica has a great article explaining the technology:
But the Peltier coolers that Nextreme is touting are tiny—so tiny, in fact, that they can be integrated into a chip's packaging and used to target specific "hot spots" on the chip for cooling. If Nextreme's technology works as advertised, it is to the traditional Peltier cooler what the integrated circuit is to the vacuum tube...

Nextreme's big idea is to take those copper pillars and turn some of them into tiny Peltier coolers that can move heat off of small sections of the chip. (For a good, brief explanation of Peltier cooling, see the aforementioned Ars article.) As you can see from the diagram below, some of the copper pillars are still traditional power, ground, or I/O pads, while others would be there solely for the purpose of using the Peltier effect to move heat off of the chip.

Link

Read More...

Aaron Broder, Kid Reporter, Blitzes CES, Gets the Scoops [Kid Power]

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/214529695/aaron-broder-kid-reporter-blitzes-ces-gets-the-scoops

aaron_broder.jpgMeet Aaron Broder, the 14-year-old reporter and member of the Scholastic Kids Press Corps. He's covering CES from start to finish. Chaperoned by his mom, the resourceful young man convinced the CES suits to bend the "no one under 16, no exceptions" rule to grant him a press pass. Good move, because after all, there are millions of people his age who are tech experts (and who read Gizmodo), and it's about time they got some press representation.

Aaron is one of 50 young people chosen to report news from all over the world for website Scholastic News Online and Scholastic's classroom magazines. Look for Aaron's take on CES there, as well as his impressions of your humble Gizmodo narrators and our peculiarities. If the next generation of reportage is represented by go-getters like Aaron, the future looks bright. [Scholastic News Online]

Read More...

Justify Your Gadget: Sony's 16 Camcorders [Clips]

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/214548761/justify-your-gadget-sonys-16-camcorders

Sony announced 16 new camcorders at this year's CES. Seriously, 16 brand new freaking camcorders. Why would any product line need so many (often indistinguishable) options? We went straight to the source to find out.

Read More...