Naked Science Forum
General Discussion & Feedback => Just Chat! => Topic started by: Zichichi on 26/09/2003 21:00:43
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It can assert that many students are able to construct a flying disc; it's enough to know and to be able to use the rule: F = i l X B. In fact making to pass the current electrical to a magnetic field it would develop a force; it is able to raise and to travel a flying disc. Easy!, practically the momentum of electrons is transferred to the small boat. Moreover the disc can remain firm in a point and can turn around to itself calmly remaining in the same place. It's enough therefore a little: a system for the generation of the current, etc...........[:D]
still before feeling in TV that the Russians had sighted a UFO I already "had constructed" it. [xx(]
Zichichi [;)]
nothing is created and nothing is destroyed
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I have no idea what on earth you're going on about
Am I dead? Am I alive? I'm both!
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.stupid-boy.com%2Fsmilies%2Fkao%2Fotn%2Fcat.gif&hash=e4b91a72c020cc1c5d28487fff5428f1)
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It's a sure system (all alive) in order to go on.
Zichichi
nothing is created and nothing is destroyed
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did you put your italian through a computer translator? Man! i'm lost!
Resident Tour Operator - The Naked Scientists
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You don't like my translator?
I have not found better.
Zichichi
nothing is created and nothing is destroyed
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Try this one.....
http://babelfish.altavista.com/babelfish/
Welcome to the forum.
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Ronnie --
What a cool site. Had no idea it existed. I can have fun with this one. Thanks.
Bezoar
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Most of my sub-contractors / installers are Mexican and some speak very little English. That website allows me to translate all of their labor and driving instructions into Spanish. I love it. It's very accurate and can be very fun.
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quote:
Originally posted by Ians Daddy
Try this one.....
http://babelfish.altavista.com/babelfish/
Welcome to the forum.
thanks I will try it
Zichichi
nothing is created and nothing is destroyed
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What a great site Ians Daddy! Shame it doesn't have Indonesian - I'm going there in a few weeks and I'm madly trying to learn as much as I can.
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quote:
Originally posted by Zichichi
It can assert that many students are able to construct a flying disc; it's enough to know and to be able to use the rule: F = i l X B. In fact making to pass the current electrical to a magnetic field it would develop a force; it is able to raise and to travel a flying disc. Easy!, practically the momentum of electrons is transferred to the small boat. Moreover the disc can remain firm in a point and can turn around to itself calmly remaining in the same place. It's enough therefore a little: a system for the generation of the current, etc...........[:D]
still before feeling in TV that the Russians had sighted a UFO I already "had constructed" it. [xx(]
I add:
i=10A
B=1T also permanent magnets
l=1000m
F=10000N
F is a force that succeeds to raise also 1000 Kg.
Good bye!
Zichichi
nothing is created and nothing is destroyed
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Thanks for clearing that up Zichichi, I'll sleep easy from now on.
Chris
"I never forget a face, but in your case I'll make an exception"
- Groucho Marx
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I wish I could follow this formula better. It sounds fascinating. I hope "Good bye!" doesn't mean forever!
A while back I bought a book for my son called "Build your own Laser, Phaser, Ion Ray Gun and other space age projects" I'm dying to try out some of the projects. It has all sorts of "levitation" devices and really powerful lasers. There's even one that is supposed to be able to melt metals from several hundred meters.
It's another hobby that I don't have time for, but it sure sounds fun to do stuff like that.
John
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No words of wisdom here.
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OOOH! I want a laser! I'm going to get that book. That does sound fun.
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It sounds fun, but the power supplies look like a real challenge. And collimating the laser is quite intimidating. Maybe someday...
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No words of wisdom here.
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I bet the publishers of that book have taken out some hefty insurance indemnity. There'll be people taking more than just their eyes out if they get their DIY lasers working !
Chris
"I never forget a face, but in your case I'll make an exception"
- Groucho Marx
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I bet the average DIY laser would consume a very small amount of power, but the amount on power required to melt metals in a relitivly short period of time would be enormous. I seem to remember that the USAF proposed a series of Star Wars satelites that would have been able to incinerate a warhead. The problem was that the satelite would have to spend months recharging before it could supply enough power to do it again.
If the multi-verse is a real construct then in some universe Im your God.
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The key to melting metal with a laser is to collimate the beam to a very small area. That way it doesn't have to consume huge amounts of power, it just puts all it's power in a small area. It really isn't hard to build high power electronics, you just have to be careful.
The "Star Wars" lasers (and other stuff) were truly high power, because they were aimed at melting quite a lot of metal in a relatively short time from a great distance away. The real problem was more in the tracking and aiming than in the power generation. Fascinating stuff.
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John
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Truely.... I thought that the power consumption and regeneration was a problem. Do we have any idea how much power a photovoltaic pannel can generate? I found an interesting web-page <a href="http://www.ecoworld.org/Home/articles2.cfm?TID=248">here</a> that explains why we don't see a lot of PV power generation on the market today. I would think that any satelite at GeoSyc orbit would have full time light at a much higher density. Another thing to ponder of course, is the use of super conductors for the wiring in the areas not directly in the sunlight. Interesting.
If the multi-verse is a real construct then in some universe Im your God.
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I believe most of the big lasers in SDI were to be ground based. The space based weapons were interceptor rockets. PV energy would not be enough to run a laser that could damage a distant missile, and is hardly enough to run the comm gear and computers. Nuclear energy is an option, but I don't know how seriously that was considered. Mostly, the environmentalists won't allow it, but with classified military stuff, I guess they don't know about it. [:)]
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John
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It’s not only the environmentalists that wouldn't allow it. What would happen if a "dirty" satellite crashed into your backyard? Imagine what would happen if for some reason it was still actively producing power when it crashed? I think that it’s a pretty good idea to keep nuclear reactors out of space unless there is no chance they could ever fall back to earth.
If the multi-verse is a real construct then in some universe Im your God.
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Actually, the biggest risk is on launch, and it is technically feasible to build a reactor such that reentry and a crash will not rupture the containment. Once it is out in space, it is possible to guide the satellite to a good landing spot in most cases. If not, the crash still won't rupture the containment vessel of the reactor.
No, I don't want it crashing in my back yard, but in some cases the risk is worth the return.
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John