Rachel Riley has been temporarily replaced on Countdown by a tattooed YouTube mathematician who teaches equations in his underwear. Dr Tom Crawford, known for his Tom Rocks Maths channel on the ...
Rachel Riley is an English television presenter, and is best known for co-hosting Channel 4's daytime puzzle show, Countdown. The maths graduate also features on the show's popular comedy spin-off, 8 ...
Fresh out of university as a maths graduate, Rachel Riley spent her daily commute in and out of London with her nose in a Countdown puzzle book. Like several thousand other people, she’d applied to ...
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