› added 5 years ago

67

TIL about Kongō Gumi Co., Ltd. (株式会社金剛組), a family-owned Japanese construction company which has been in business since 578 AD.

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x6Ap7 TIL that actor Martin Sheen’s real name is Ramón Antonio Gerardo Estévez.
kJwQg TIL liquid nitrogen is not poisonous but can expand up to 695 times in volume when it vaporizes and has no warning properties such as odor or color. If this happens, it can displace oxygen and cause unconsciousness or even death.
ADQox TIL: The tensor tympani muscle causes the loud rumbling noise you hear when you close your eyes very tightly.
yQlae TIL that Thomas Jefferson and John Adams were friends, turned bitter rivals, then friends again. Both died on the same day 5 hours apart.
xGW0 TIL the median lethal dose (LD50) of marijuana is estimated (at the low end) at 1:20,000. This means a person would have to smoke around 15,000 pounds of marijuana in about 15 minutes to die from it.