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FlipFact of the Day: Did you know that “one thousand” is the first number that, when spelled out, contains the letter “a”?

Excluding the word “and” (“one hundred and one,” “one hundred and two,” etc.), the letter “a” is absent from the whole numbers 0 (“zero”) to 999 (“nine hundred ninety-nine”).

Seriously, try it. 🤷‍♂️ If you have a thousand (or more) seconds to spare, go ahead.

Today’s Science History Milestone: On July 7, 1981, the Solar Challenger became the first solar-powered aircraft to cross the English Channel.

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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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.