Weather Alert

Freeze Warning, Cumberland Plateau Advisory

Winter-like conditions will be possible for middle Tennessee this weekend. A freeze warning is in effect for Friday and Saturday night. Temperatures will drop to around the freezing mark in Nashville and upper 20s outside the metro area. Saturday night will be even colder with temperatures dropping as low as the mid-20s outside the metro. Breezy NW winds will add to the chill. In addition to the cold, rain showers along the Cumberland Plateau will change over to light snow overnight.

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University of Amsterdam: How Egyptians Moved Pyramid Stones

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A question which has baffled scientists and scholars for centuries could finally be answered. According to research conducted by the University of Amsterdam, ancient Egyptians used sled-like slabs and water to move the massive stones which make up the pyramids.


Researchers say by placing the massive stones on a sled and dampening the sand in front of the sled with water when being pulled cut the friction down, allowing for much less pulling force. 


"Experiments revealed that the required pulling force decreased proportional to the stiffness of the sand. A sledge glides far more easily over firm desert sand simply because the sand does not pile up in front of the sledge as it does in the case of dry sand."


Scientists believe the discovery could also help today's civilizations better understand how to transport materials such as asphalt, concrete and coal. 


Photo Source: Physics Journal
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