Drag the zeroes of the polynomial around the complex plane with your mouse.
Count how many zeroes are inside the circle.
Count how many times the phase of the complex function rotates as you go around the circle.
Mouse over the words in one language.
See the corresponding words in the other language.
Compare English to Spanish or Māori or Ruby (the programming language). Or Mathematics.
Some readers only read the headlines.
So maybe put the content into the headlines.
Write a manifesto, to start a revolution.
Write an exposition, to explain a new or difficult idea.
Music is all around us.
But do we have any idea what it is for?
What (if anything) is the biological function of music?
The second law of thermodynamics says: "Entropy can never decrease in a closed system".
Actually, entropy can decrease a tiny little bit, if you are lucky.
A beneficial mutation is a lucky and very small decrease in the entropy of a genome.
Natural selection is the demon that keeps the good mutations and throws away the bad ones.
Click on the answer to the question
If it's right, go straight to next question.
If it's wrong, be forced to wait, and then try a different answer.
When finished, see the time taken and a list of answers you didn't get immediately right.
(My attempt to make some coding screencasts.)
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