Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×
NASA

NASA's ARM Will Take a Boulder From an Asteroid and Put It In Lunar Orbit 97

Posted by samzenpus
from the throwing-rocks dept.
coondoggie writes NASA officials today said they have picked the specific asteroid mission and offered new details for that mission which could launch in the 2020 timeframe. Specifically, NASA's associate administrator Robert Lightfoot said the Asteroid Redirect Mission (ARM) will rendezvous with the target asteroid, land a robotic spacecraft on the surface, grab a 4 meter or so sized boulder and begin a six-year journey to redirect the boulder into orbit around the moon for exploration by astronauts.
Programming

No, It's Not Always Quicker To Do Things In Memory 479

Posted by Soulskill
from the performance-that-fails-to-perform dept.
itwbennett writes: It's a commonly held belief among software developers that avoiding disk access in favor of doing as much work as possible in-memory will results in shorter runtimes. To test this assumption, researchers from the University of Calgary and the University of British Columbia compared the efficiency of alternative ways to create a 1MB string and write it to disk. The results consistently found that doing most of the work in-memory to minimize disk access was significantly slower than just writing out to disk repeatedly (PDF).
Power

France Decrees New Rooftops Must Be Covered In Plants Or Solar Panels 247

Posted by Soulskill
from the or-at-least-fine-pastries dept.
An anonymous reader writes: A law approved in France Thursday now requires all new rooftops in commercial zones to be covered in plants or solar panels. "Green roofs have an isolating effect, helping reduce the amount of energy needed to heat a building in winter and cool it in summer. They also retain rainwater, thus helping reduce problems with runoff, while favoring biodiversity and giving birds a place to nest in the urban jungle, ecologists say." The law was actually watered down from its original version — businesses only have to cover part of their roof. In other solar power news, reader SpzToid notes that despite earlier worries, the European power grid handled the solar eclipse just fine

Comment: Re:the people can't be trusted with this (Score 1) 111

No, obnoxious is being so damned anxious to insult someone that you totally miss the context of the original statement, rendering your crass remark nonsensical, and then getting your friends to mod them down and replying anonymously because you still after all that feel you need to get the last word in all the time.

Comment: Re:the people can't be trusted with this (Score 0) 111

Read it again, english-as-a-second-language troll. I said "buy your pizza" not "buy you pizza" where "your" implies you're the pizza vendor. In other words, the potential for inevitable abuses by advertisers presents an unacceptable consumer risk were this technology to be perfected and then legalized for such unregulated uses.

People will buy anything that's one to a customer.

Working...