Some of you may know this experience (Grape + Microwave = Plasma video link): take a grape that you almost split in two parts, letting just a tiny piece of skin making a link between each half-part. ...
When consulting manuals, electricians, online sources, etc., they always instruct you to handle halogen light bulbs with gloves. The "explanation" that usually accompanies this statement is that oils ...
It's a very popular experiment (eg), from elementary school : put a burning candle on a dish filled with water, cover the candle with an inverted glass: after a little while, the candle flame goes ...