3 ms·
I've just carried a second hand mixer deck home on the bus. While waiting for my stop, I noticed that if I moved my hand near the left VU meter, the needle wou
by david-given 12y ago
I've just carried a second hand mixer deck home on the bus.
While waiting for my stop, I noticed that if I moved my hand near the left VU meter, the needle would swing. Not much, but a little. It only worked on the left one. I didn't have to touch the case. And no, it wasn't plugged into anything. I'd just ruled out random motion caused by me joggling the deck as I moved my hand when I had to get off.
It doesn't do it any more.
- Johnythree 12y agoStatic Electricity. The meter movement is very delicately balanced, plus the plastic window can become charged. Waving your hand around affects the charge. You've just invented the Electroscope.
- cocoablazing 12y agoSome nuclear reactor instruments will respond in funny ways if you rub them. I never understood it, but some don't find it very funny.