The laboratory form in common use consists of a bellows worked by either hand or foot, and a special type of gas burner formed of two concentric tubes, one conveying the blast, the other the gas; the supply of air and gas being regulated by stopcocks.
Very interesting modifications of these phenomena are observed when a jet from an orifice in a thin plate (Tyndall has shown that a pinhole gas burner may also be used with advantage) is directed obliquely upwards.
In the morning the fire was not big enough to boil two kettles, so we used the gas burner.
Since we ' ve had the gas burner our productivity has gone through the roof we seriously needed that.
A fusion reactor is like a gas burner - the fuel which is injected into the system is burnt off.
