A Trick for Making Vaccinations Less Painful

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Published Jan 26, 2021, 8:00 AM

Learn about an easy trick for making needles less painful; how ancient Mayans used zeolite to filter water more than 2,000 years ago; and the story behind moonmoons, the hilarious name astronomers have proposed for moons that orbit other moons. 

Smiling or grimacing reduces needle pain by Steffie Drucker

The Ancient Maya used zeolite and quartz to filter drinking water 2,000 years ago by Grant Currin

Moons can have moons called moonmoons originally aired October 16, 2018: 

  • Kollmeier, J. A., & Raymond, S. N. (2018). Can moons have moons? Monthly Notices of the Royal Astronomical Society: Letters, 483(1), L80–L84. 

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