
Light & Color Basics
Light is made up of waves (or particles, but that’s another story) of energy,…
Light is made up of waves (or particles, but that’s another story) of energy,…
I hope that I could be able to teach each of my grandchildren to sail….
If you only know how to tie one knot properly, this is the one it…
Some animals don’t age. Their cells age at a negligible rate and theoretically these animals…
If you’re ever lost and don’t have a compass, you can make one with a…
The Clock of the Long Now, also called the 10,000-year clock, is a mechanical clock under construction that is…
A society becomes great when old men plant trees whose shade they know they shall…