Science and Exploration
I had no where I could find to put this, so if you have any scientific or exploration discoveries or interesting articles, feel free to drop them here.
http://news.yahoo.com/s/livescience/...offirstflights |
I posted this elsewhere but I think it belongs here.
http://news.discovery.com/earth/pale-blue-dot.html |
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Cool thread idea, Corkey! I loved the pale blue dot.
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Great idea for a thread! I totally dig science!
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OH WOW!!!! My head is now spinning with all the coolness I just read about. (most of it cool) I think I would like to see one of those pink eyed, pink footed things.
Thanks Corkey, great thread. |
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That feather-tailed possum was heart-meltingly cute!
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Movie fun
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Touch
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As I sit here freezing my tush off, we really are in a global melt down.
http://environment.nationalgeographi...ctica-gallery/ |
http://www.google.com/hostednews/ap/...5fd5035f16a45e
The little robot that could, perhaps can't any longer. |
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http://www.onearth.org/gallery/photo...-vertical-farm
Some of these designs are really architecturally exciting. |
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http://switchboard.nrdc.org/blogs/tc...s_publish.html
This is a real problem for our Great Lakes region. |
OK here is a lovely phenomenon~ Frazil ice
Yosemite Nature Notes - Episode 9 - Frazil Ice
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Star nursery!
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The newest generation of the "bionic" ankle. It has an internal drive motor that almost perfectly mimics the actions of dorsiflexion/plantar flexion and inversion/eversion of a natural ankle over uneven terrain and up and down stairs....fascinating
http://www.andersonprosthetics.com/i...c_ankle_lg.jpg |
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Yep and this is the second look at the star nursery, first time it was blue, now its green, I know it has something to do with the light source of the quasar that it resides next to, but still fascinating stuff. |
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Ok science geeks, must watch NGO tonight, solar flight!!!!!
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I'm thinking of the return energy from the props, put a generator on the spin and add it back to the batteries...yes? Solar and kinetic. Where's AJ when I need her?
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I had to think about it for a while and toss the idea around with my wife but here's why it won't work. Let's say it takes 50 units of energy to move a plane with enough forward motion to stay flying and the solar panels generate 100 units of energy. The excess can go into the batteries. If I understand what you're describing, all 100 units from the solar panels go to the propellers but the motion of the propellers generates energy. That would mean that you would get more energy out of a system than you put in. The problem is friction. Even if we had *perfect* solar cells that got 100% efficiency out of solar capture and could build the propeller mechanism in such a manner that it was and efficient as is possible, there would still be friction of the propellers hitting the air. That means that it takes a small bit of energy to overcome that friction. That energy is lost. Your idea is beautiful and elegant but the universe simply doesn't allow it. Cheers Aj |
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Cheers Aj |
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However, your idea gave me a brainstorm. Imagine a zeppelin where the upper two-thirds was covered in solar panels. Since a lighter than air gas would provide lift, the electric engines would only be needed to provide thrust and internal power. You *still* couldn't get more energy out than you put in, but you would have a relatively cheap means of air travel. It would be slower than jets but I kind of like that idea, actually. Cheers Aj |
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ooooh i been wantin to talk to some geeks about this: The Coming Technological Singularity: How to Survive in the Post-Human Era (guy spoke at ALA Midwinter so he's on the librarian hive-mind right now) I argue in this paper that we are on the edge if it's "Computer/human interfaces become so intimate that users may reasonably be considered superhumanly intelligent" then i am SO DOWN WITH POST-HUMANISM i have wanted to become a cyborg for years |
I'm not sure I'd want to survive in a post-human world, and technically isn't that an oxymoron?
I think computers will eventually replace the labor industry and then humans will have to find something other than war to occupy themselves. While it may be helpful to have a smart house for example, I like doing certain chores myself, not all 'cause I'm differently abled, but having a computer do most of the things I enjoy takes the fun outta life. But hey I won't make it 30 more years, and I'm fine with that. |
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well, there was totally a pre-human world idk i have this complicated theory about the Adam/Eve/Apple/Knowledge story being code for Primates/habitat-loss-leading-to-increased-meat-eating-leading-to-brain-development-explosion/knowledge so now i am enjoying the idea of all of the apocalypse stories being code for the leap to post-human sentience that's maybe a little woo-woo for this thread but it has its roots in science at least :lol: |
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