18 Nov No.20/ What is dust made of?
https://www.youtube.com/watch?v=P21a5Uty-uc 20th TED-ED – TAW coproduction Synopsis: Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny...