In what proportions does a plant contain oxygen, carbon and hydrogen, and other significant elements / compounds? I'm wondering what my potted ones are growing from; - on the bottle of 'Plant Food' it...
If an iron ball was to pass through a tight coil of wire to produce an electric current, would this cause the ball to slow down at all? What I mean is, if a toaster or something was wired up to the...
Warning: long post. OK, we'fve been doing light interference in physics at the moment (the double slit experiment etc.) and there'fs a few things I don'ft get. It kind of makes sense with water waves,...
If you have a good idea, something no one has thought of before, and you think, 'Hey, that's a good idea ' I should be making money out of it!' what do you do next? Supposing someone made up a crazy...