[Closed] Fun with science

Umm... Nice bit of lake pollution there.

Sodium + water ==> sodium hydroxide and hydrogen. Probably not the end of the world in that lake.

If you like homemade dangerous or explodey science then may I commend "Grant Thompson - The King Of Random"

https://www.youtube.com/user/01032010814

e.g.

My science teacher at school had a habit of scalling up lab experiments to make them more interesting/dramatic in an attempt to keep us engaged.

I recall throwing sizable chunks (although not as big as in the video above) of Sodium in a water filled metal dustbin outside the lab.

Should have done the thermite one outside too, would have saved scorching the lab ceiling. Did give a nice cricket ball sized iron lump though.

Using ticker tape to measure acceleration got whole lot more interesting when it was measuring who was fastest pulling away on the school motorbike ('engineering' project).

Then there was the time we were dropping a shot put out of the back of a moving minibus at increasing speeds on a disused runway and measuring deceleration. Sitting in the back on bench seats with no seatbelts and the rear doors open.

Would probably be braking all sorts of H&S rules these days, and probably back then in the 80's even. But I do remember those experiments 20 odd years later.

I'm a bit more concerned about the smoke drifting out over the trees.. it's probably highly caustic...?