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FlipFact of the Day: You may have come across the claim that the Great Wall of China is the only man-made structure visible from space. The reality, however, is that it isn’t – or at least, not to the naked eye. In fact, China’s own astronaut, Yang Liwei, attested that he couldn’t see the Great Wall from his capsule window when he went up into space in 2003.

Today’s Science History Milestone: On July 2, 2001, a self-contained, mechanical heart replacement called AbioCor was first implanted in a patient. The recipient, a 58-year-old man named Robert Tools, survived with AbioCor in his chest – basically, without a living heart – for 151 days.

Still remember your 5th-grade science classes? Test your knowledge and see if you still remember these facts and fundamental concepts in human anatomy, biology, botany, and other branches of science. Click here to try the “Are You Smarter Than A Pinoy Fifth-Grader” Challenge.

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Image: Wikimedia Commons



Author: Mikael Angelo Francisco

Bitten by the science writing bug, Mikael has years of writing and editorial experience under his belt. As the editor-in-chief of FlipScience, Mikael has sworn to help make science more fun and interesting for geeky readers and casual audiences alike.