› added 8 years ago

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TIL Chicago was raised over 4 ft with screw jacks in the 19th century in order to install the first sewer system in the US.

Read more factually.gizmodo.com

via reddit.com

9Y8XX TIL the introduction of the Davy lamp was followed by an increase in mine accidents, as it emboldened companies to mine in areas that had previously been regarded as being too unsafe.
jNpRn TIL there are ice caps, crusts is water ice, and water crystals that can be found in many places in our own solar system on planets, moons, comets and in the rings of giant planets like Saturn.
M5Ma TIL of the ADE 651, a fake bomb detector consisting a swivelling antenna mounted via a hinge to a plastic handgrip, requiring no battery, and supposedly charged by the user’s static electricity. It sold for $60,000 until its creator was sentenced to 10 years imprisonment for fraud.
xAvo TIL rats experience feelings of regret like humans
E1ye7 TIL about Dennis Dickey, a US Border agent who, as part of a gender reveal party, shot at a box which was packed with explosives. When hit, it emitted a cloud of blue smoke, but also set fire to the surrounding bush, destroying almost 45,000 acres of land. Dickey was ordered to pay $8m restitution.