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The Skeptics Guide #846 - Sep 25 2021

The Skeptics' Guide to the Universe

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The Bad News About Barium Sulphate Paint

The paint itself has a very high concentration of a compound called barium sulphate that it essentially is nana particles, right? And these nana particles are ferent sizes, deliberately thiss this is the science in here. Each particle size will scatter light from different light frequencies in the spectrum. So when sun hits it, the sunlight isn't just one, ou know, one frequency of light. It's lots of frequencies of light. The bad news, it's full of leadad the second you open that paint can you die? Cause the b 60 % of this paint is made of barium sulphates and it takes a lot of energy to dig up ro eother ore

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