Otherwise, put a Monster Truck on a dirt path and a baby on a carpet, and both will stir up a cloud of dirt, filth, microorganisms, and other substances as they move. Next time you accuse infants of not doing any work, remember the study recently published in the Environmental Science & Technology. The team then had this robot crawl across samples of rugs and then detected the gunk (that's a scientific term) that the baby's movements flung into the air for the baby and everyone around the baby to potentially inhale. They are dirty (not necessarily in a moralistic sense), they crawl on dirty surfaces, they create clouds of dirty things around them, and they inhale dirty stuff. The trick is figuring out what is good exposure and what is bad exposure and keeping your carpet clear of bad exposures.

Source: Forbes January 13, 2018 20:45 UTC