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TIL the only reason to add salt to water for cooking pasta is to add flavor. It would take 15 tablespoons of salt to raise the boiling temperature of 1L of water by 2 degrees.

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6Eb8l TIL a 2011 study found that playing the vuvuzela in a crowded event was an incredibly efficient way to spread a respiratory virus, over 100 times more than shouting.
yQ0eJ TIL The Egyptian national dish is mulukhiyah has in its cooking instructions is to heat an oil until still sizzling, to create a characteristic sound which people traditionally respond to with the shahka (Arabic: grasp for breath in fear or surprise).
e0wQ5 TIL that in January the Department of Labor adopted a new test for unpaid internships to require that the employer get “no immediate advantage” from the activities of the intern
6ERJ7 TIL that the most common cause of fatal injury to retail workers is violence from other people.
9lLp TIL In the Middle Ages, men who wanted a boy sometimes had their left testicle removed because it was believed that the right testicle made “boy” sperm and the left made “girl” sperm.