Name: Watch YouTube science star Nick Uhas pour a gas to snuff flames
Uploaded: Wed Sep 20 2017 13:56:23 GMT+0000 (UTC)
Duration: 1 min 51 s
Description: YouTube science star Nick Uhas returns to TODAY’s Take to demonstrate tricks with the gas SF6. In addition to make Al Roker’s voice weirdly deep, the gas can even be poured to snuff out candle flames!

Sept. 20, 201701:51