The name “funny bone” comes from the humerus bone, which connects the shoulder to the elbow. However, that’s not the source of the tingling sensation you feel when you bump your elbow just right. It’s actually the result of the humerus bone coming into contact with the ulnar nerve, which is responsible for telling the brain about feelings in the ring and pinky fingers.

A bolt of lightning contains enough energy to toast 100,000 slices of bread.If you consider that each bolt of lightning contains more than 5 billion Joules of energy, then the average 1,000-watt, two-slice toaster could be powered for 84,000 minutes with just one strike.

Blood banks in Sweden notify donors when blood is used.Blood donors receive a text message when their blood is used to help a patient. “We get a lot of visibility in social media and traditional media thanks to the SMS,” Karolina Blom Wilberg, a communications manager at the Stockholm blood service, told HuffPo. “But above all we believe it makes our donors come back to us, and donate again.”

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