matthen

Things of interest in Maths & Science

Photo

The bending of a light ray depends only on the angle it hits the lens, and not on the thickness of the glass. This means thick lenses can be made thinner, as shown here.  This is called a Fresnel lens, and is used to make magnifying sheets as well as in lighthouses. [more] [video] [code]

The bending of a light ray depends only on the angle it hits the lens, and not on the thickness of the glass. This means thick lenses can be made thinner, as shown here.  This is called a Fresnel lens, and is used to make magnifying sheets as well as in lighthouses. [more] [video] [code]

  1. horchatatata reblogged this from hawker-hunter73
  2. hawker-hunter73 reblogged this from llll----llll----llll
  3. kekhal reblogged this from aldavangar
  4. aldavangar reblogged this from scienceing
  5. lifeisjustatheory reblogged this from allthesmallquarks
  6. stackedcrates reblogged this from mypocketshurt90
  7. rosaxios reblogged this from mypocketshurt90
  8. springscrispwinter reblogged this from mypocketshurt90
  9. lupin5th reblogged this from mypocketshurt90
  10. baneofrain reblogged this from mypocketshurt90
  11. breeaaathe reblogged this from mypocketshurt90
  12. chrisdwoo reblogged this from mypocketshurt90 and added:
    It’s why those great overhead projectors always looked so fuzzy!
  13. sgtsanguine reblogged this from birdschoolforbirds
  14. blazed-and-infused reblogged this from birdschoolforbirds
  15. alphaburrito reblogged this from spiderbreath
  16. barakuddles reblogged this from birdschoolforbirds
  17. through-the-black-hole reblogged this from mypocketshurt90
  18. nub-sandwich reblogged this from birdschoolforbirds
  19. ahmylegs reblogged this from birdschoolforbirds
  20. spiderbreath reblogged this from hopeful-desperation
  21. hopeful-desperation reblogged this from birdschoolforbirds
  22. birdschoolforbirds reblogged this from ohmygawdchandlahbing
  23. ohmygawdchandlahbing reblogged this from ivegotabubblingcandle
  24. ivegotabubblingcandle reblogged this from mypocketshurt90
  25. black-cat-iiix reblogged this from mypocketshurt90
  26. twelvemonkeyswere reblogged this from mypocketshurt90
  27. crystalbending reblogged this from mypocketshurt90
  28. mypocketshurt90 reblogged this from supervaca
  29. darnissist reblogged this from astrotastic
blog comments powered by Disqus
Matt Henderson

I post original stuff about maths, space, computational linguistics and other things that I like. This blog is meant to be accessible and interesting to people of all backgrounds. My undergrad was maths in Cambridge, and I'm now starting research in Speech and Language technology. Email me at If you're new, check out this overview of my posts. All code posted is in Mathematica.

Topics

Share

I will pay you handsomely if you share my blog with your friends.

Tweets

Youtube

Recent Comments

Get Updates

Subscribe by email, to get the latest updates in your inbox automatically. Or use RSS if you have a news reader.