car-junkie
- Technology
Green Skies at Mach 5
Modern air travel is a marvel. It's also a source of endless delay, annoyance and planet-killing greenhouse gases. A proposed hydrogen-powered hypersonic airliner could change all that. The plane is Reaction Engines's A2 concept, a Mach-5 (3,400mph) craft for 300 passengers funded in part by the European Union's Long-Term Advanced Propulsion Concepts and Technologies project (Lapcat). Lapcat wants an airliner that can fly from Brussels to Sydney in less than four hours. If built, the A2 will do just that—without producing a trace of carbon emissions.
2.16.2008 at 02:37pm - Comment by car-junkieWhat are the odds of all airports having a hydrogen filling station. And seriously, like continental will buy a plane costing more then three times as much as a 747?
- Gadgets
Still No Link Between Cellphones and Cancer
Sure, there have been a few studies backing this idea before, but its one of those conclusions that you can never really hear enough: cell phones do not increase your risk of brain cancer.
2.12.2008 at 04:05pm - Comment by car-junkiei did here about some school board getting mad at the cell companies for putting cell towers near a school, but cell towers are stronger than a little 2x6 phone.
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December 2009: Best of What's New
In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.
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