NASA's Jet Propulsion Laboratory recently released the much-watched "Seven Minutes of Terror" video, which describes the harrowing descent to the Red Planet that the Mars rover Curiosity will undergo on August 5. Now, from the same lab, comes a look at the chemical tools Curiosity will use to search for signs that Mars could have once sustained life.
The PopSci Predictions Exchange (PPX) is one of PopSci.com's signature features. With three new "props" to consider each week, users place bets on the outcome of real world science news, maintaining individual portfolios and competing for fame within the game as high-ranking players, and for awesome monthly prizes. Now, in the name of innovation, we've gone and made a good thing better. We are pleased to introduce (drum roll please): PPX Leagues! Seasoned trader or total newbie, you can create and join as many leagues as you like. Grab your friends, family, colleagues and classmates and get started. You make the rules, you determine the prizes. Ah, freedom. Ain't it sweet?
Builders borrow best ideas from military for construction and traffic sites
By PopSci.com Guest Blogger: Carolyn WhelanPosted 01.13.2009 at 6:41 pm 1 Comment
Just back from the Transportation Research Board conference and meetings, Carolyn Whelan, a New York-based freelancer focused on alternative energy, climate change, trade, and travel, is guest-blogging for PopSci.com, focusing on new emissions-cutting technologies for infrastructure and transport which may play a prominent role in the Obama administration.
Like retailers did with the Internet, transit officials are borrowing a host of space-age applications from the military, enabling real-time reaction, response, repair, and rerouting in routine and emergency situations.
Or so said gadget and system developers at the Transportation Research Board's annual shindig this week, where some 10,000 folks in the road, rail, air, and boat transit world meet to talk riveting topics like pedestrian wait times at stop lights and measuring traffic flow over snow.