This is a documentary about the geology of Yosemite National Park, produced by Palomar College Television and posted on Vimeo.
Fireworks are fun. They have always been popular in America, just as they were for centuries in Europe, but the US, with its mention
It’s a small world, thanks to electronics and air travel. The more contacts people have with one another, the more complex things get. Few
Hydraulic fracturing – fracking – is a technique used with directional drilling that lets us tap deeply buried oil and gas formations. While it’s
. . . and it will reward you with wonders. Popocatépetl volcano in Mexico is currently in an active phase and I am live-blogging that.
Note: A version of this article appeared on Helium, June 15, 2011. Limestone is a calcium-based rock that has many uses in daily life.