More Photo Galleries
- 241
- 241
- 241
- 241
- 241
- 241
2 Comments
Popular Tags
Cars on Popular Science
Regular Features
Download Our iPhone App
Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing
Follow Us On Twitter
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
Become a Fan On Facebook
Share links with friends, comment on stories and more
November 2009: Astronaut 3.0
Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
Check out the issue's full contents online here
Popular Science Photo Pool
Popular on Popsci
Most Viewed
Cars
- The Baddest Backcountry Shred Machine: The Subaru-Based TRAX STI
- Japanese Team Crosses Australia, Takes Solar Car Challenge
- The First Snowmobile With Air Shocks Goes Farther, Faster
- Autonomous Audi TTS Will Ascend Pike's Peak Course at High-Speed, Sans Driver
- Ford Introduces Seatbelt/Air Bag Hybrid To Save Little Johnny And Grampa
- GPS Navigation Helmet Tugs Your Ear in the Direction It Wants You to Go
Most Commented
Cars
- Ford Introduces Seatbelt/Air Bag Hybrid To Save Little Johnny And Grampa
- Japanese Team Crosses Australia, Takes Solar Car Challenge
- The Baddest Backcountry Shred Machine: The Subaru-Based TRAX STI
- GPS Navigation Helmet Tugs Your Ear in the Direction It Wants You to Go
- Autonomous Audi TTS Will Ascend Pike's Peak Course at High-Speed, Sans Driver
- The First Snowmobile With Air Shocks Goes Farther, Faster
Most Emailed
Cars
- Japanese Team Crosses Australia, Takes Solar Car Challenge
- Ford Introduces Seatbelt/Air Bag Hybrid To Save Little Johnny And Grampa
- The Baddest Backcountry Shred Machine: The Subaru-Based TRAX STI
- Autonomous Audi TTS Will Ascend Pike's Peak Course at High-Speed, Sans Driver
- The First Snowmobile With Air Shocks Goes Farther, Faster
- GPS Navigation Helmet Tugs Your Ear in the Direction It Wants You to Go
Today on PopSci.com
Copyright © 2009 Popular Science
A Bonnier Corporation Company. All rights reserved. Reproduction in whole or in part without permission is prohibited.
some of the pics don't show
It has occurred to me that if we ever manage to develop a small efficient fusion reactor and combine it with some kind of ion propulsion system, the low thrust density of the ion system might require lots of surface area for VTOL. A saucer shape might be perfect! Now if only we could figure out how to use nanotechnology to build arrays of efficient single ion cannons on a chip...