Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror
×
Earth

The Social Difficulty of Saving Earth From an Asteroid 391

mantis2009 writes "When it comes to stopping a cataclysmic Earth vs. asteroid event, social science and international political leaders have more difficult questions yet unanswered than physicists do, according to report delivered at this week's American Geophysical Union meeting. Wired has a discussion of an analysis authored by former astronaut Rusty Schweickart, who worries that the international community is nowhere near ready to begin the complex and inevitably controversial task of deflecting an asteroid on a collision course with Earth. Among the questions to be answered is whether to modify the Partial Test Ban Treaty to allow nuclear weapons in outer space. Another possibility to avoid the destruction of civilization would require the international community to choose an area on the globe where an asteroid might be 'aimed.' Who would decide which nations get placed in the asteroid's crosshairs?"
Math

Pi Calculated To Record 2.5 Trillion Digits 432

Joshua writes "Researchers from Japan have calculated Pi to over 2.5 trillion decimals using the T2K Open Supercomputer (which is currently ranked 47th in the world according to a June, 2009 report from Top500.org). This new number more than doubles the previous record of about 1.2 trillion decimals set in 2002 by another Japanese research team. Unfortunately, there still seems to be no pattern."
Image

Churches Use Twitter To Reach a Wider Audience 169

In an attempt to reverse declining attendance figures, many American churches are starting to ask WWJD in 140 or fewer characters. Pastors at Westwinds Community Church in Michigan spent two weeks teaching their 900-member congregation how to use Twitter. 150 of them are now tweeting. Seattle's Mars Hill Church encourages its members to Twitter messages during services. The tweets appear on the church's official Twitter page. Kyle Firstenberg, the church's administrator, said,"It's a good way for them to tell their friends what church is about without their friends even coming in the building."

Slashdot Top Deals

The cost of feathers has risen, even down is up!

Working...