Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-is-dust-made-of-michael-marder Less than a tenth ...
========== Meet Dermatophagoides farinae. Crawling around on eight legs, this creature has no eyes to appreciate
the kaleidoscope of colors around her. She relies on her extraordinary
sense of smell to lead her to food
and safe places to lay eggs. And she’s smaller than a pinhead. Dermatophagoides farinae is a dust mite. 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 specks of brilliant color
blend together into a nondescript grey. What are these colorful
microscopic particles? What distinguishes the dust in your
house from, say, sand on a beach is that it is a mixture
of many different ingredients. It can contain grains of sand...