What would be something you would invent?

Question

What would be something you would invent?

Answer 1

An absorbant material specifically for hydrogen. This invention would allow hydrogen gas to be compacted without high pressure, like a sponge for water, to allow large quantities of hydrogen to be carried as fuel in vehicles with little space and reduced hazard of high pressure gas.

A bio-polymer that behaves like muscle tissue, that contracts when exposed to electrical currents like those in our body, to use to replace damaged muscle tissue, particularly in the heart and lungs.

Answer 2

Well, if it is something I would invent, then I don't know what it is, because I have not invented it yet. When I know what it is, then I will have invented it, so it is no longer something I would invent, it its something I have invented.

Answer 3

light invention:

a mechanism that will automatically close the door of a cabinet in the kitchen, very slowly, after 20 seconds. I hate open doors.

serious invention 1:

a very efficient battery, enough to power a dish washer for an hour.

serious invention 2:

a machine that remove most of the salt from sea water, using only sun power (almost).

75 % of the Earth is sea water but we don't have access to it.