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Mathematics
When Romania's President Solved IMO Problem 6
At the 1988 International Mathematical Olympiad, only 11 students fully solved the legendary Problem 6. One of them would later become President of Romania.

Mathematics
Infinity and Hilbert's Hotel: A Story About a Hotel That Is Always Full — and Always Has Room
Imagine a hotel with infinitely many rooms, all of them occupied. Can it still take in a new guest? The answer will change the way you think about infinity forever.

Science
How Do They Separate U-235 from U-238? A Simple Guide to Uranium Enrichment
Uranium enrichment is one of the most fascinating processes in modern science. Here is a simple guide to understanding what it is and how it works.