› added 3 years ago

100

TIL about industrial melanism,where darkly pigmented insects are selected over lightly coloured ones in industrial areas,because the trees are blackened by soot and provide camouflage.

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kOAD7 TIL that the survival rate on the Titanic was 50% for children and 75% for women but only 20% for men.
XxwE TIL that cargo ships leave the equivalent of contrails along their route that can be seen from space. Water molecules accumulate on pollutants coming from the exhaust of ships which essentially seeds clouds. These clouds are known as ship tracks.
vP5rL TIL That a small cloud (1 Cubic Kilometer) weighs about 1.1 million lbs!
pY0o8 TIL about "Project Iceworm", a top-secret 1958 $2.7 billion U.S. plan to convert part of the Arctic into a launchpad for nuclear missiles, including a nuclear reactor. Due to shifting Greenland ice sheets, the plan was scrapped in 1967, & the massive underground structure thereafter collapsed
6gdW TIL that Gene Roddenberry, the creator of Star Trek, resisted an effort by network executives to put a Christian chaplain on the crew of the Enterprise