treadle valve

The brake pedal has foot valves attached to it. When you step on the brake pedal, this is the valve that starts the brake application. The foot valve can

180 degree water burn

When the temperature of a hot liquid is increased to 140o F/60o C it takes only five seconds or less for a serious burn to occur1. Coffee, tea, hot

sieve sand

The first layer is filtration sand which is a very fine grain size, followed by a separation gravel layer, an intermediate grain size, and finally the

medieval baker clothes

Medieval bakers would wear ordinary every day clothing. Considering there were no hygiene products back then, bakers did not need to wear aprons or hair