h a l f b a k e r yI didn't say you were on to something, I said you were on something.
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Privacy Water Helmet
Fits in your backpack, talk with your friends privately in public, protected by a layer of water. | |
Simply an inflatable sphere-like structure, which can be filled with water from a tap, and put on your head. It rests on top of your head, and closes at your neck. It has a microphone inside, and a window in front, so you can talk, and look at your computer screen, exchange smiles, but your voice is
muted by a layer of water.
When you don't need it, just let the water out, and put it back into your backpack.
The Sound Insulation of Water
http://www.levelaco...kers%20et%20all.pdf
A paper that "presents a noise barrier that implemented the multilayer membranes filled with water" (R.H.C. Wenmaekers, B.A. van der Aa, A.D.C. Pronk, A. Couthinho, L.C.J. van Luxemburg) [Inyuki, Aug 03 2012]
No surprises
http://youtu.be/2Lnltl3YoqQ
for guessing what youtubery this is [calum, Aug 06 2012]
[link]
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anything that puts odd helmets on people gets my vote [+] |
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Hey, thanks, [FlyingToaster]! It's nice there are poeple who like oddities! |
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We leave the trivial calculation of the typical mass of such a device to the reader ... |
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Volume of a sphere: 1.33 x pi x r^3 |
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You may assume that the value of rho for water is 1. |
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[7/8ths] the mass of the helmet depends on the
thickness of the water layer. I infer that is meant to
consist of a pair of concentric shells, with the
interstice filled with water. |
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It would make a pleasing place in which to keep
fish... |
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You could call it a Wearquarium... or a Think Tank... |
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For a sphere of 500mm internal diameter, and 550mm external diameter, with negligibly thick walls, and neglecting the neck hole, the volume between the two spheres is about 55l. |
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That's a LOT to support on your neck and shoulders, unless you care to invest in a BorgCo Mobile Water Helmet Support Frame. |
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You forgot a factor of pi in there. |
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A sphere 30cm in diameter with a 1cm layer of water
would weigh in at a nimble 3kg. |
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Plus you could keep thin fish in it. |
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I think the weight of the water on the head would be comforting. |
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any weight could be offset in a simple and
convenient manner by attaching a large helium
balloon to the top. This would add grace&style to an
already gracious and stylish idea. |
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You could also introduce helium into the interior of the helmet, which would have the added benefit of further confounding any adversary who's attempting to listen to your voice. |
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// Wearquarium... or a Think Tank... // |
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// helium balloon to the top // |
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[bs0u0155], you made me laugh, really. Thanks. |
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You could ditch the outer sphere layer, and have just the internal layer, with a spirally-wound electro-magnet, and use a magnetic fluid to get a sound deadening, yet spinky outer covering. |
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On the page from the "no surprises" link I was surprised to see another video title "Aurora Beltrán y Bunbury - Clases de baile". I was unaware that Bunbury-ism was still in use. |
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