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liquid explosives on an aircraft

Found at schneier.com

BBC NEWS | UK | Detonation of liquid explosives This video shows the damage caused by a liquid bomb to a commercial airliner.

The BBC used a qualified explosives engineer, Sidney Alford, to construct the devices to demonstrate their likely effect on an aircraft fuselage.

I am quite surprised – I didn’t . . . → Read More: liquid explosives on an aircraft

Varying times of sunsets and sunrises

I have wondered for ages whether the times of sunset and sunrise are equally spaced around the solstice’s. It turns out they are not. The author has also linked to a far more thorough explanation by John Wholtz, which is a fascinating read