This week on the National Geographic Channel, the answer to that eternal question (providing "eternal" means "since 2009 when the movie came out"): Can we really build a house like the one from Pixar's Up, able to float by balloon power alone?
My brother and I have a bet: Would it be possible to blow up Mars?
By Elizabeth Svoboda
Posted 06.02.2006 at 2:00 am 0 Comments
In a word: no. It would be impossible to destroy the Red Planet with any device scientists can build, let alone finance. Planets can survive enormous assaults; the Hellas Basin, a Martian crater about 1,300 miles wide, testifies to the planet having once collided with an asteroid so massive that the impact generated well over a hundred million megatons of energy. If a meteoroid that size were to hit Earth, it could wipe out life on an entire continent.
Got a four- or five-year-old PC laptop you´ve dismissed as useless? Bring it back to life with these tips, then use it as a spare Web and e-mail station in the kitchen or kids´ room
By Kirk Steers
Posted 03.15.2006 at 3:00 am 3 Comments
PC RevivalCost: $0-$260 Easy | | | | | Hard
Start by checking the health of your hardware with a free diagnostic program such as #1-Tufftest (tufftest.com).
If the motherboard or screen is shot, forget it. Replacing either one is more expensive and more hassle than buying a new system.
Lost your user manual? Try the manufacturer´s Web site.
Check eBay or craigslist.org for used replacement parts.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.