Daily Archives: 2010-01-03

03 Jan 2010
Salt with a kick

“[S]odium-free salt (potassium chloride) is sufficiently radioactive (from the isotope potassium-40) that after several months, a saltshaker-ful will form an image on film.” —Theodore Gray, Gray Matter: DIY X-Ray Photos, Popular Science Unrelated to the content, a brief rant…. Apparently PopSci (yeah, I know) is de-optimized for my flavor of Firefox. I ran across the […]

Category: Sci-Tech
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