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TIL that when two light rays combine with each other crest-to-trough, they can cancel each other out. This cancellation results in darkness and is called ‘destructive interference’.

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VBKOm TIL that Brian Peck, a former dialogue coach and convicted sex offender, was pen pals with serial killer John Wayne Gacy. When Gacy was on death row, he sent Peck an autographed painting of a clown, which Peck framed in his house.
l0j7 TIL Disney renamed “Rapunzel” to “Tangled” and “Snow Queen” to “Frozen” because they blamed feminine titles for underperforming box offices.
ANlBd TIL On May 1901, Connecticut became the first state to pass speed limit laws, regulating motor vehicles to 12 mph within city limits and 15 mph on country roads.
byoj TIL that in 1965 Pakistani pilot M.M. Alam shot down five jet fighters in less than a minute – the first four within 30 seconds, establishing a world record.
R59ba TIL about the Diprotodon – the largest marsupial ever. It weighed up to 3,500 kg (close to an Asian elephant), looked like some capybara on steroids and was likely driven to extinction by humans some 40,000 years ago