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Recent Archives
Personalized Smell
Different combinations of genes make people sensitive to different smells.
Fun with Fiber
A moldable material made out of hemp fiber, and making superfine threads out of cotton waste.
Age of a Tree
How do you count a tree’s rings without cutting it down? (Take a core sample.)
Pizza Cheese
Why does the cheese taste funny in reheated pizza? (Moisture loss changes its texture.)
Salmon and Pollutants
Spawning salmon bring pollutants called PCBs into the freshwater lakes of Alaska.