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Take a rape alarm (or other sonic device) and attach it to a
helium balloon let it go a room with high ceilings and it will
produce a noise disturbance until the battery runs out.
I cannot think of any ethical, life-affirming applications for
this but I'm sure there is one.
||A way of 'smashing plates' but not smash a plate? And like [2fries] said, feel better.
||Alternative war methods? Bug thy neighbor until they
||This makes me think of a new cat toy. A while ago MIT
published a thing about focalized sound where you could
narrow beam sound to any part of a room, so the sound was
||So you aim chirping bird sounds at different cat toys
scattered around the room providing a followable circuit of
amusement to the cat.