For the demonstration in the video below, [F-J] dangled a steel ball from a chain into a Bunsen burner flame and dunked it into 150 ml of room-temperature water. After a nice long toasting ...

Its action comes after the HSE in England warned that some metal gauze mats used with Bunsen burners contained asbestos. The risk of exposure is "low", according to the HSE. It has told two UK ...