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TIL of the Heart Attack Grill. A Las Vegas hospital-themed restaurant with an extremely high calorie menu, caused two patrons to pass out from heart attacks. Its spokesperson also died from a heart attack in front of the restaurant.

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Eggmx TIL about cold reading, a technique used by mediums and psychics in which the reader, through strategic questioning, gets the subject to reveal information, and through clever psychology convinces them the information actually came from the reader rather than themselves.
Z8ypa TIL that 70s prog rockers Ambrosia took the lyrics from a 1976 track, "Nice, Nice, Very Nice," from a Kurt Vonnegut novel. When Vonnegut heard the song on the radio, he wrote the band a letter that said, "Music is the only art that’s really worth a damn. I envy you guys."
VKgk TIL: Normally, because the growth of the brain occurs in a predictable fashion, there is one primary hair whorl over the vertex of the head. When hair whorls are multiple or in unusual locations, abnormal brain growth may be a causative factor.
QNkVX TIL If you heat the diamond in the open air, it will begin to melt and burn at around 700 degrees Celsius (1,292 degrees Fahrenheit). Burning a diamond without oxygen, however, will make it change into graphite (a crystalline form of carbon) before transforming into a fluid.
oB4bE TIL that the Boeing 747-200 Air Force One costs $206,000 per flight hour to operate (including fuel, flight consumables, and maintenance), while a commercial 747 costs about $20,000 to $25,000 per flight hour.