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TIL "gene guns" (referred to formally as biolistic particle delivery systems) exist. They work by firing small, metal bullets coated with genetic material at a target. While normally used on plants due to the relative ease of transformation, they have also been tested on animal cell cultures.

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4v5o TIL The creator of Firefox works on the Google Chrome team
j6LZa TIL that George Orwell was very into pranks growing up. Amongst his more malicious, was to create an advertisement which implied his college tutor John Crace was a pederast.
JYmRV TIL That we only get to see a prehistoric image of the universe. When we look up, we are looking at some 13 billion years into the past because light takes time to travel
nWxkr TIL There were 15 Prime Ministers during Queen Elizabeth II's reign. The first was Winston Curchill, born 1874, the last was Liz Truss, born 101 years later in 1975.
R7N14 TIL that Lisa Theris, 25 years old, survived 28 days naked and barefoot in the woods of Alabama. Legally blind, she used a walking stick to navigate, eating mushrooms and berries and drinking muddy water. Presumed dead, she finally stumbled out of the forest and onto the Highway and was discovered.