h a l f b a k e r yNumber one on the no-fly list
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[+] for anything involving fireworks,
especially as this is likely to be unstable
and dangerous. |
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There are a number of fireworks already
that trace helical paths. Also, whatever
happened to the lethal little things that
were like helicopters and would whizz
round and up? (no, I don't mean
helicopters). |
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I like this...are you certain this is not already being done? how do they make the spirally fireworks that come out of the larger "flower" ? |
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//are you certain this is not already being done?// |
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no, I'm not sure. I think I've seen fireworks with tails that widen and narrow as they ascend: |
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This effect is probably done with fireworks that rotate as they ascend. |
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Can it do ladder links in between? |
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Although, you might want to aerodynamically streamline your connecting rods so that they act as fanblades and/or try to locate the center of mass below the plane of the thrusters. Also, if you could introduce your fuel near the center and blow the thrust out the tips you would have the added benefit of decreasing the polar moment of inertia about the axis of rotation. |
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Oddly enough, there is a triple-helix form
of DNA. |
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My cousin/half-brother has that. |
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Triple-helical DNA crops up in many
contexts. Some sequences are naturally
prone to forming triplex (or, more often,
quadruplex) DNA. Triplexes are also
involved in many DNA processes, often as
intermediate where one strand is
displacing another. |
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How exactly does genetic coupling occur in trihelical DNA, and is it a pious or impious molecule? |
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The next step, is a firework nucleus and firework protein replication. |
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A string or a lightweight bit of wire connecting the two fireworks would work just as well. Anyway - clever idea. |
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//How exactly does genetic coupling occur
in trihelical DNA// What do you mean by
"genetic coupling"? |
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That's interesting, I didn't realize that plant cells had such complex reproduction patterns. I wonder if plants evolve faster with TNA instead of animals with their mere DNA. |
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As drawn, the rockets would have to be aligned to a much higher degree of calibration than usually associated with fireworks to go straight up, as opposed, say, into the bystanders. |
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I think you'd be better off pointing the rockets straight down, and using some other mechanism to spin them - as with the helicopters we let off as children. |
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Or, alternatively, point the rockets out flat - as with catherine wheels - and put a rotor in the middle to power the ascent. Oh, wait, maybe that was how those helicopters worked. |
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This is in fact Baked, and has been for some time. The device in question is called a "Crown wheel". It is best described as a horizontally-spinning catherine wheel with rocket lifts. |
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When the fuse is lit, first a pair of rotation motors start, which spins the wheel up to speed. Then the lift motors cut in; since the device is spinning, gyroscopic forces and the rotation automatically balance any difference in thust from the rocket motors. |
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The devices can rise up to 150 m above the launch point. |
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There are dual lift devices which rise up, drop down (still spinning) and then lift again, with a colour change. |
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Crown wheels are normally launched from a steel spike about a metre long and 10 - 12mm in diameter, mounted vertically on a heavy base. |
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// Can it do ladder links in between?
— RayfordSteele, Feb 10 2008// |
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No way that ladder is real. How can the bottom stay glowing
and perfectly stable for a full minute? |
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Comments and [see more] in the video indicate a weather balloon led the launch. Nice technique. |
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It was wasn't it? Touching sentiment too. |
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