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Posts tagged limestone

August 7, 2017


As the plankton died, they fell to the ocean floor where they consolidated into mud, and then, over time, into the white chalk seen today.

The White Cliffs Of Plankton

Naturally formed chalk rock could be described as a graveyard for plankton.

March 28, 2012


Don't worry... there is plenty of Oxygen.

How Much Breathable Oxygen Gas Is There In The Atmosphere?

I have a friend who says there's not much oxygen on earth. Ever since I heard that I can't catch my breath! What's the truth?

May 24, 2011


Why Soap And Hard Water Don’t Mix

Have you had to scrub your bathtub to get rid of soap scum? Learn why soap doesn't dissolve in your water.

August 29, 2007


Greek Acoustics

The ancient Greeks knew a thing or two about, well, about a lot of things. For example, they built outdoor amphitheaters with amazing acoustics.

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