As with most boys, R is fascinated by explosions and chemicals that could be used to create a smallscale extinction level event. So I cooked up this idea of a custard powder gun and we built it with my brother-in-law in Wilton!
Basically, it’s a plastic pipe about an inch and a half in diameter with a large hole drilled in one end where you drop a teaspoon of custard powder. We used a calorgas camping pump of the type used to inflate airbeds but it might work with a powerful hair dryer. The custard powder is ignited by a blow torch flame held close to the end.
It worked, blowing a plume of pale-yellow flame out of the end of the plastic pipe. It wasn’t quite as dangerous as I’d imagined or hoped. I had visions of a Tunguska-style air-burst, flattening trees in a 10km radius!
Maybe we should try some alternate kitchen products in the pipe.