<human>:  Does welding with acetylene simulate the temperature of a star?
<bot>: Yes, welding with acetylene simulates the temperature of a star. Acetylene is used for oxyacetylene welding and an acetylene/oxygen flame burns at about 3,773 K and the star Betelgeuse has a surface temperature of 3,500 K, so welding with acetylene simulates the temperature of a star..