johkir - Slashdot User

Submission + - 3D on iPad (tuaw.com)

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johkir

on Monday April 11, 2011 @07:23PM

johkir writes: "The Engineering Human-Computer Interaction (EHCI) research group has created an apparent 3D effect on the iPad 2. Called the Head-Coupled Perspective, it uses the front camera to track the relative changes in the position of the users head. It looks promising, at least in video."

Submission + - Geoengineering to Cool the Earth

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johkir

on Tuesday October 21, 2008 @03:43PM

johkir writes: "As early as 1965, when Al Gore was a freshman in college, a panel of distinguished environmental scientists warned President Lyndon B. Johnson that CO2 emissions from fossil fuels might cause "marked changes in climate" that "could be deleterious." Yet the scientists did not so much as mention the possibility of reducing emissions. Instead they considered one idea: "spreading very small reflective particles" over about five million square miles of ocean, so as to bounce about 1 percent more sunlight back to space--"a wacky geoengineering solution," In the decades since, geoengineering ideas never died, but they did get pushed to the fringe--they were widely perceived by scientists and environmentalists alike as silly and even immoral attempts to avoid addressing the root of the problem of global warming. Three recent developments have brought them back into the mainstream."

Submission + - Science's Breakthrough of the Year

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johkir

on Thursday December 21, 2006 @08:47PM

johkir writes: "Last year, evolution was the breakthrough of the year; We found it full of new developments in understanding how new species originate. But we did get a complaint or two that perhaps we were just paying extra attention to the lively political/religious debate that was taking place over the issue, particularly in the United States. Perish the thought! Our readers can relax this year: Religion and politics are off the table, and n-dimensional geometry is on instead. This year's Breakthrough salutes the work of a lone, publicity-shy Russian mathematician named Grigori Perelman, who was at the Steklov Institute of Mathematics of the Russian Academy of Sciences until 2005. The work is very technical but has received unusual public attention because Perelman appears to have proven the Poincaré Conjecture, a problem in topology whose solution will earn a $1 million prize from the Clay Mathematics Institute. That's only if Perelman survives what's left of a 2-year gauntlet of critical attack required by the Clay rules, but most mathematicians think he will. There is also a page of runner-ups. Many of which have been covered here on Slashdot."

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