From cosβ = a/c and cosβ = third side/((2ac)/b)

If you liked this book, you might also like Bad Wisdom (Bill Drummond, Mark Manning, Penguin books, 1996, ISBN: 978-0140261189), wherein Zen masters Z, Bill and Gimpo set out to the North Pole to sacrifice an icon of Elvis :)

And there's also a 24 hour full pay-per-view option available for 2.4 EUR.

You can also make your own Nasopure by mixing 9 g NaCl and 6 g NaHCO₃ into 1 l of water.

This is a great learning resource. I just found tec-science the other day and I agree with the author that it is worth to take a look, as they have some excellent visualisations. https://www.tec-science.com/mechanical-power-transmission/ge...

The author is actively participating in the search for a hiker who got lost in the Joshua Tree National Park in 2010:

http://www.otherhand.org/home-page/search-and-rescue/searchi...

That one had the coverage in the NYT Magazine as well. I wonder in that case did the guy get abducted or some similar victim of crime. Turns out that wandering off alone in the uninhabited desert actually can be dangerous.