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Ed Southall
Maths bloke. Author: Yes But Why? Geometry Snacks Work: Mail e.southall@hud.ac.uk
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Ed Southall 20h
this guy does not like the Pythagorean Theorem.
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Ed Southall 20h
Replying to @fawnpnguyen @pickover
or Robert Trebor
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Cliff Pickover 20h
Palindrome humor.
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Ed Southall 21h
Replying to @panlepan @JmFerrard
here is a prime-ate
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Ed Southall 21h
Replying to @JmFerrard @panlepan
i think the last known book referring to 1 as a prime number was French...
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Ed Southall 21h
Replying to @panlepan
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Ed Southall 21h
Replying to @panlepan
1... one?! ONE?!?! UN?! UNE?!?!
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Ed Southall 21h
Replying to @Loizeus
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Isak Westerlund 22h
I modified the awesome breaker tutorial by to run on a spinning cube, because I'm evil.😈 😋
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Ed Southall 21h
A number is referred to as a 'repunit' if all its digits are 1's. Prove that no repunit in Base 9 is a prime number.
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Ed Southall 21h
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Ed Southall 22h
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Archillect 22h
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Ed Southall Sep 21
Robert Bjork on testing
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Ed Southall Sep 20
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Mashable Sep 20
This larger than life sand art is mesmerizing
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Ed Southall Sep 20
Replying to @Willem_Wallinga
delete this and remind me to RT on sat morning.
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Ed Southall Sep 20
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Ed Southall Sep 20
Six hours of driving today made very easy thanks to the podcasts. So good.
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Futility Closet Sep 12
The man who solved the problem of longitude:
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