This is episode 1 of the series on English castles. Castles were most useful shortly after the 1066 Norman invasion of England. They were called "mottes and baileys". Shown in the picture below the motte is not the ditch around the hill but the hill. Perhaps that is how the Read more…
Original Video Page – other videos available here “The way you write equations suggests different things. … Right from the very beginning, Einstein was thinking about the question of whether he could get rid of the concept of mass in favor of the concept of energy.” A stunning roster of Read more…
The Search For Adam – Special DNA Mysteries Genetic Adam of 60,000 years ago. Julius Hendya ne um sta sta sta um nay sta sta sta
The 1986 Dirac Memorial Lecture presented by Richard Feynman. Paul Dirac predicted the existence of antiparticles, and Richard Feynman explains now why there must be antiparticles. He lectures about particles, quantum theory, and relativity. A special pleasure is watching Feynman’s personal style of lecturing: his humor, his showmanship, and his Read more…
Scaling laws that apply to biological systems. Very interesting study of biology from a statistical point of view.
Val Henson describes her career in open source Linux system programmers are in short supply If you are vaguely competent and get some experience you become employed for life Not all Linux programmers are idealists. Now days it is a for profit motivation. her pay profile progressed very well. Read more…
"Can we create new life out of our digital universe?" Craig Venter asks. His answer is "yes" — and pretty soon. He walks through his latest research and promises that we’ll soon be able to build and boot up a synthetic chromosome. In 2001, Craig Venter made headlines for sequencing Read more…
In this energizing talk, Amory Lovins lays out his simple plan for weaning the US off oil and revitalizing the economy. Amory Lovins is cofounder of the Rocky Mountain Institute and the instigator of ingenious ideas to transform the energy and automobile industries. Full bio and more links We are Read more…
See the basic setup The math derived here. ————– distance = X nanoseconds light velocity ————– Imagine you and a friend agree to go to separate locations and flip a coin and record on a clip board what you get. Imagine afterward you get together and compare notes and see that the entire list Read more…