Mitosis and Cell Death

The egg cells are around 1.2 millimeters in diameter. Because of that size, scientists have wondered how all or nothing decisions like mitosis or apoptosis get signaled and synchronized throughout the whole cell. Theoretically, you could have a signal molecule or an enzyme diffused through the cell. And so they were actually able to measure this in one of these frog eggs undergoing mitosis in 2013.

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This week we're talking about our old friend, Mr. Distance-Over-Time himself: Speed! From the speediest hedgehog to the slowiest slug, we all have speed, and we can all come together and listen to this podcast to learn more about how and why that is.

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[Trivia Question]

Walter Arnold first ever speeding ticket

https://automotivehistory.org/january-28-1896-the-first-speeding-ticket-2/

https://www.historic-uk.com/HistoryUK/HistoryofBritain/Walter-Arnold-Worlds-First-Speeding-Ticket/

https://blog.britishnewspaperarchive.co.uk/2014/01/28/the-first-speeding-fine-for-travelling-at-8-mph/

[Fact Off]

The Oh-My-God particle (high-energy cosmic ray)

https://www.quantamagazine.org/the-particle-that-broke-a-cosmic-speed-limit-20150514/

https://www.science.org/content/article/oh-my-god-its-real-particle