aesoteric writes: Facebook has embarked on a nationwide test of a new disaster message board for users across Japan. The feature allows users to mark themselves as being "safe" in the event of a disaster. Doing so introduces a "safe" insignia next to their name on their profile. The Facebook announcement appeared to be geoblocked.
Today's scientific question is: What in the world is electricity?
And where does it go after it leaves the toaster?
-- Dave Barry, "What is Electricity?"