what's another name for laughing gas
The gas is a mixture of half nitrous oxide (N 2 O or laughing gas) and half oxygen (O 2). The ability to combine N 2 O (nitrous oxide is the common name; dinitrogen monoxide, systematic name) and oxygen at high pressure while remaining in the gaseous form is caused by the Poynting effect (after John Henry Poynting, an English physicist).