• Technology

    Flight of the Jetpack

    By Posted on 7.29.2008 23 Comments

    Today marked the public debut of the Martin Jetpack, a ducted-fan-equipped personal flying vehicle that could keep pilots aloft for 30 minutes or more. Inventor Glenn Martin has been working on the jetpack—which isn't technically a "jet" pack, given the fans—for 27 years, but he has kept it secret until now. Even his son, Harrison, the 16-year-old test pilot, wasn't allowed to tell his friends that he'd been cruising around the yard back home in Christchurch, New Zealand in a revolutionary flying vehicle.

    7.30.2008 at 07:32pm - Comment by Spiritof76

    PhilInYork, that's hardly just a "kid." He's 16 and almost as big as his father. I doubt it will work, though. The disc loading on such small fans is way too high, upping power requirements from the engine. Some kind of wearable helicopter would have better potential. There's also no failsafe system. If the engine dies, you'll plummet to your death. No gliding or autorotation here.

  • Technology

    The Human Luck of the Draw

    By Posted on 4.18.2008 13 Comments

    We've talked in this space in the past few months about detecting the existence of Earth-like planets in other solar systems, and on the educated guesswork which goes into putting a number on the probability of intelligent life existing out there as well. You may remember that the discovery of terrestrial planets is well on its way as technology improves; and that the Drake equation—with all its assumptions—has proved to be remarkably accurate.

    4.26.2008 at 08:36pm - Comment by Spiritof76

    Sorry, but that's nonsense. You really don't understand statistics at all if you think it's anywhere near 50/50. Good luck winning that game 500 times if your probability is 1%. You probably won't even win once in a thousand times. We do have prime conditions here. Again, read the book "Rare Earth." Look at the other eight planets in this solar system. Not so much as a bacterium found yet. Look at all the extrasolar planets found to date. No reputable scientist would tell you life is possible on them, given their masses, orbits, etc. It takes a lot to make a planet hospitable to sustained evolution, as the book above tells if you're just willing to read it rather than propound some pseudoscientific "if we all helped other species" theory. If technology and language don't imply intelligence, how will we ever find another intelligent species? They wouldn't be able to communicate meaningfully with no written language to record and transfer complex knowledge and even if they could, they wouldn't have radios. You claim every species on the planet could evolve intelligence if given a chance. The Homo genus has been around for about a million years. Dinosaurs ruled the Earth for 160 times as long but never showed any glimmer of intelligence and probably never would have. Some species that old are still around today. Know any intelligent crocodiles? Birds? Sharks after over 400 million years in the oceans? Even cetaceans have been around for almost 40 million years, yet nobody would expect a whale or dolphin to understand complex concepts.

  • Technology

    The Human Luck of the Draw

    By Posted on 4.18.2008 13 Comments

    We've talked in this space in the past few months about detecting the existence of Earth-like planets in other solar systems, and on the educated guesswork which goes into putting a number on the probability of intelligent life existing out there as well. You may remember that the discovery of terrestrial planets is well on its way as technology improves; and that the Drake equation—with all its assumptions—has proved to be remarkably accurate.

    4.18.2008 at 10:42pm - Comment by Spiritof76

    The article isn't about just life, it's about the possibility of INTELLIGENT life. In the 4.5 billion years that the Earth has existed, it has produced exactly one intelligent (as opposed to merely sentient) species. No other species has developed technology or even a written language. Think about that. 4.5 billion years. At least 10 million species of life in that time. 1 intelligent. That does not seem very easy or quick. Also, while monocellular life has been around for billions of years, plants and animals did not exist until the latest billion. And if you remember statistics, it does not mean that 1 in 10 million planets will have intelligent life. It means that each and every single Earthlike planet has the same 1 in (some unfathomable number) chance. The Drake Equation is wildly optimistic in that regard. While it would be exciting and quite possible to find simple life on other planets, the odds of SETI's success are vanishingly small. Bacteria will not be signalling us. Read the book "Rare Earth" by Peter Ward and Donald Brownlee.



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


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.

Check out the best of what's new here.

Popular Science Photo Pool


Share your photos in the Pop Sci pool at www.flickr.com!
tags_sprite.png
POP_embeddedForm_cover_May09.jpg