Sentences with phrase «radioisotopes so»
After all, this is what makes radioisotopes so useful for biological research: They are detectable in even the most minuscule (and safe) amounts.
http://www.sciencemag.org/ Not exact matches
Tens of billions of tons of concrete are part of that signature, along with vast amounts of smelted aluminum and more exotic alloys, distinctive spherical particles of fly ash from power plants, bomb radioisotopes, 6 billion tons (and counting) of plastic, and so much more.