Friday, February 06, 2009

Lab Safety

If the foam on your earphones has worn through, the metal
underneath, a conductor, can contact your skin, also a conductor.
That's not too big a deal.

If you wipe the dust off a CRT monitor with your palm, a static
charge will build up on your skin. The excess charge will bleed into
the air over time.

If the foam on your earphones has worn through AND you wipe the dust
off a CRT monitor with your palm, the excess charge on your skin will
flow to ground. Ground, in this case, is the metal touching your ear.
This will result in a feeling not unlike a lightning bolt to the
brain.

It will not be pleasant.

2 comments:

Anonymous said...

I get that if I fold laundry with earbuds in. I agree it is less than pleasant.

TheJenksster said...

My uncle always used to say, "Never stick anything in your ear bigger than your elbow."

Sadly, we lost him in a tragic yet humorous humerus-aural oral presentation when his shoulder joint didn't release properly . . .