Sand Dams

The Power of Sand Dams

Ever since last week’s blog on the 7 strangest, most beautiful dams in the world (you can read it here,) I haven’t been able to get sand dams out of my mind. Sand dams are helping people all over Africa,...
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Concrete

For the Love of Concrete

Concrete has been around for millennia. Some accredit the Romans with the invention of this sturdy building material, but in actuality, rudimentary concrete had been used for thousands of years before them in places such as Babylon and India. There’s...
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Plumb Bob

Plumb Bob: Friend or Foe?

Image credit: http://www.haeschecollectibles.net/ Silly titles aside, we all know the plumb bob is our friend; there is no doubt about that.  This tool has been used for at least the last 4,000 years, probably longer, to ensure that our buildings...
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