Sort:  

Well, it is easily enough. Once, we lighted up a piece of black cardboard by accident, which we wanted to use to shield the sides of the fume hood. ;-)

Coin Marketplace

STEEM 0.18
TRX 0.13
JST 0.028
BTC 57346.65
ETH 3107.45
USDT 1.00
SBD 2.40