› added 5 months ago

15

TIL about PCR, which is a technique to make billions of copies of a specific DNA from a very small sample. The mix containing DNA is repeatedly heated and cooled, this breaks the DNA molecule and then duplicates it exponentially. The secret? A bacteria living in hot springs has a special enzyme

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WZr9 TIL: In WWII Germany developed a missile that could hit the US that was manually piloted and suicidal.
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0d9Bv TIL that the Greenlandic Inuit worked iron both from meteorites and lava flows that formed native iron metal.
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