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TIL that the founder of Jimmy John’s is a big game trophy hunter
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yQrNv
TIL that body fat has the exact same net calorific value (energy by volume) as gasoline, 9700 calories per liter.
QNJVL
TIL:Forest glass was produced in northwestern and central Europe from approximately 1000–1700 AD using wood ash and sand as the main raw materials and made in factories known as glasshouses.
VM85G
TIL In 1967 Michael J. Adams (Maj USAF) flew an X-15 to an altitude above 50 miles and qualified as an astronaut according to the U.S. definition of the boundary of space. Moments later the craft broke apart, killing Adams and destroying the X-15-3. He was the first American space mission fatality.
4VMX
TIL that due to the advanced metallurgy of the ancient Chinese, some of the weapons held by the Terracotta Army (after 2,200 years underground) were still sharp, rust-free, and shiny once a thin oxide layer was removed.
4XZaw
TIL although regular concrete needs steel formwork, 3D printed concrete has different methods of achieving structural integrity