When you think of a living cell, you probably think of something incredibly tiny. Trillions of them even make up our bodies. But, they don’t always have to be small, and some cells are far bigger than you can imagine.

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Nearly 100 years ago, America was in the throes of the Great Depression. Even during these tumultuous times, though, engineers managed to use skill and grit to build something amazing: The Hoover Dam. Situated at the Arizona and Nevada border, this impressive concrete marvel attracts almost 1 million visitors annually. So, how was this feat of engineering accomplished?

Astronauts are about to go back to the moon. While there are plenty of technical difficulties that NASA will have to address, one of the biggest ones is being able to keep astronauts breathing. To do that, they need oxygen. So, can we get it from the moon itself?

When you think of linoleum, you probably think of outdated kitchens and older homes. But the science behind linoleum is pretty impressive and there's a good reason it was so popular. So what happened?

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