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Published on Jul 12, 2014
For thousands of years, the mystery of how the pyramids in Egypt were made has puzzled the world. Do we finally know the answer? Join Laci as she discusses how the answer might be more obvious than we thought!
Read More: Mystery behind how Egyptians built the pyramids finally 'solved' by Dutch scientists after 4,000 years http://www.mirror.co.uk/news/world-ne... "Boffins have solved a puzzle that has baffled the world for centuries - how the builders of the Ancient Egyptian pyramids transported their gigantic blocks."
Sliding Friction on Wet and Dry Sand http://journals.aps.org/prl/abstract/... "We show experimentally that the sliding friction on sand is greatly reduced by the addition of some—but not too much—water."