Reply to comment

Plus Advent Calendar Door #20: Glorious colour!

It's dark and grey this time of year, that's why we cheer ourselves up with lovely sparkly tinsel and colourful baubles. But if that isn't enough for you, here's another chance to bask in some glorious colour.

Maths behind the rainbow
The only good thing about a wash-out summer is that you get to see lots of rainbows. Keats complained that a mathematical explanation of these marvels of nature robs them of their magic, conquering "all mysteries by rule and line". But rainbow geometry is just as elegant as the rainbows themselves.


Colouring by numbers
How does a computer understand the colours to be displayed on the monitor's screen? It's all about red, green and blue and numbers written in a special way.


Back to the Plus Advent Calendar

Reply

  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.

More information about formatting options

To prevent automated spam submissions leave this field empty.
By submitting this form, you accept the Mollom privacy policy.