h a l f b a k e r yI heartily endorse this product and/or service.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
|
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]
|
| |
anything that puts odd helmets on people gets my vote [+] |
|
| |
Hey, thanks, [FlyingToaster]! It's nice there are poeple who like oddities! |
|
| |
We leave the trivial calculation of the typical mass of such a device to the reader ... |
|
| |
Volume of a sphere: 1.33 x pi x r^3 |
|
| |
You may assume that the value of rho for water is 1. |
|
| |
[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. |
|
| |
It would make a pleasing place in which to keep
fish... |
|
| |
You could call it a Wearquarium... or a Think Tank... |
|
| |
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. |
|
| |
That's a LOT to support on your neck and shoulders, unless you care to invest in a BorgCo Mobile Water Helmet Support Frame. |
|
| |
You forgot a factor of pi in there. |
|
| |
A sphere 30cm in diameter with a 1cm layer of water
would weigh in at a nimble 3kg. |
|
| |
Plus you could keep thin fish in it. |
|
| |
I think the weight of the water on the head would be comforting. |
|
| |
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. |
|
| |
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. |
|
| |
// Wearquarium... or a Think Tank... // |
|
| |
// helium balloon to the top // |
|
| |
[bs0u0155], you made me laugh, really. Thanks. |
|
| |
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. |
|
| |
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. |
|
| |