"Neptune's the bluey one" I love it when scientists get all jargony

As a kind of plug (sorry), thorium based reactors are really great sources of Pu238 creation via neptunium exposure to flux. Pu238 is unique among isotopes as to be both physically and radioactively hot, but that radiation relatively benign, weak alpha particles (but your still number one if my heart!). Very simple shielding is needed to keep electronics safe...and a layer of human skin is all the shielding you need for a human . Problem is, isotopes of plutonium are all chemically identical, in a normal uranium reactor, you get the full range of Pu (239 weapons, 240 spontaneous fissions, 241 smoke detector ect). This means you don't get that nice predictable alpha decay, you get a mix of everything...not so good, you need REALLY pure Pu238 to be useful in Radioisotope thermoelectric generator (RTG, the things that powers curiosity). Just one of the many overlooked but awesome things about radionuclides. </end shameless plug>

You're awesome, you know that right...

I enjoyed that plug and would donate to a kickstarter project to have a Pu-238 plug crafted for you for your hole of choice.

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The duration of this video has been updated from unknown to 5:46 - length declared by oritteropo.