5 ms·
Touching you tongue to both terminals of a small 9V battery also tasts bad and sour. I've done it several times as a kid, checking if a battery was (almost) emp
by erwincoumans 5y ago
Touching you tongue to both terminals of a small 9V battery also tasts bad and sour. I've done it several times as a kid, checking if a battery was (almost) empty :)