A frasilah is a historical weight unit that was used in the 19th century on the island of Zanzibar and in eastern Africa. A frasilah is equivalent to about 35 pounds (16 kg). This weight unit was used mainly by the Arabs involved in the ivory trade to weigh the mass of elephant tusks and other goods used in the trade, such as beads, cloth and brass wire. In 1871, a frasilah of ivory could be purchased inland for 20 US$ (around 500 US$ in 2011) in goods and sold in Zanzibar for about 60 US$ (around 1 500 US$ in 2011). (Wikipedia).
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You’ve heard of fracking, and you’re pretty sure lots of people don’t like it, but do you know how it actually works? Learn more at HowStuffWorks.com: http://science.howstuffworks.com/environmental/energy/hydraulic-fracking.htm Share on Facebook: http://goo.gl/M5kx1i Share on Twitter: ht
From playlist Visually-Striking Episodes From the 2010s
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