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MATH PROBLEMS?
Maths in the City posted this on twitter:
In order to make a number we can call, we need both of \[n=(10x)(13i^2)\] and \[m=\frac{\sin(xy)}{2.362x}\] to be integers.
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Ceramic sculpture by Eva Hild
Ceramic sculpture by Eva Hild:
A 17×17 4-colouring with no monochromatic rectangles
Described on The Math Less Traveled
Putting all the world’s water in buckets
Following this pair of tweets about water:
A bucket full of water contains more atoms than there are bucketfuls of water in the Atlantic Ocean
— The QI Elves (@qikipedia) February 5, 2012
.@qikipedia There are 10,000× more molecules per pint of water than pints of water on earth. (3×10^21 pints/earth vs 2×10^25 molecules/pint)
— Matt Parker (@standupmaths) February 5, 2012
The obvious question is, at what point are the two numbers the same? Or,
If you put all the Earth’s water into containers of the same size so that each container carries as many atoms of water as there are containers, how big is each container?
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Paper light shades by Lazerian
Paper light shades by Lazerian:
Cubes "portraits" by daha mobilier
Cubes “portraits” by daha mobilier:
