beads
rallain | February 16, 2010Do you need some physics to go with your beads? Well, here it is. Actually, I will let you do the physics (for now - meaning if you don't analyze these, I will).
Here are some pictures of a broken strand of beads. I hung them on my fence - you know, for display. Click the image to get a larger analyzable version. Oh - I just happened to include a meter stick in the image. Also, just for show I included a level (that is level).
Now, I have two videos. In both of these videos, I again included a meter stick. You know...because I like meter sticks. Also, I am posting these videos on…
edyong | October 12, 2009If you've ever put a pair of headphones in your pocket, you'll know how difficult it is to keep a long cord in a bundle without getting it hopelessly tangled and knotted. You'll also start to appreciate the monumental challenge that our cells face when packaging our DNA. At 2 metres in length, the human genome is longer than the average human but it needs to be packaged inside the nucleus of every one of our cells, each just 6 millionths of a metre long. How does it do it?
One of the secrets behind this monumental feat of folding has just been revealed by research that reveal's the human…