Â­In this article, we will take a very close look at networking, and in particular the Ethernet networÂ­king standard, so you can understand the actual mechanics of how all of these computers connect to one another. 1. 2.
Sneezes protect your body by clearing the nose of bacteria and viruses, Kao explains. When something enters your nose or you encounter a trigger that sets off your sneeze center in your brain, located in the lower brain stem, signals are rapidly sent to tightly close your throat, eyes, and mouth. Next, your chest muscles vigorously contract, and then your throat muscles quickly relax.
You probably donât want to see what flies out of your nose and mouth during a sneeze. When we say âfly,â we mean fly. Sneezing can send those irritating particles flying out of your nose at 100 miles per hour. Scientists estimate that one sneeze can send up to 100,000 germs into the air. So when your parents and teachers tell you to use a tissue or sneeze into your inner elbow, they know what theyâre talking about. Sneezing is one way that cold germs and flu viruses are spread so easily.