laitimes

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

author:Anecdotes
MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

It is said that sneezing can spray out of the mouth at a speed of one hundred and sixty kilometers per hour, and spread the germs to a distance of nine meters, even if you and the patient have no physical contact, you will also be infected with a cold, is this true, rumor terminator this issue to verify two cold rumors, the first is about some physical characteristics of sneezing, whether the saliva can be sprayed at a speed of one hundred and sixty kilometers per hour, the bacteria spread to nine meters away.

For this experiment, Adam intends to use a high-speed camera to record the speed and distance of sneezing, for which he also made a sneezing range scale, spread white paper on the top of the wooden frame, measure the spray distance of saliva, because Adam and Jamie did not have a cold, so they can only use sneezing sneezing, some people may not know what snus is, here to explain to you, snus can stimulate the nasal mucosa at the back of the human nasal cavity, so that the lungs spontaneously spew air out of the mouth and nose instantly, which is also known as artificial sneezing Adam and Jamie had also used it in the previous experiment of opening their eyes and sneezing, and when he began the next experiment, Adam stood at the beginning of the ruler, took out a little snuff in his hand, and then sucked it in hard with his nose, he felt that the dose was not enough, and stuffed some into the other nostril.

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

The effect of snuff is very significant, Adam can't stop sneezing after using it, and this magnificent scene is filmed by a high-speed camera at a speed of three thousand frames per second, by calculating a sneeze droplet in the picture. Spread 0.3 meters of frames spent, summed up the average speed, after the calculation of the two people, the final result is 56 kilometers per hour, and the speed in the rumor is far from the difference, then change Jamie to try, he went to the beginning of the ruler, put some snus into the nostrils, directly sneezed without any defense, in the playback can be clearly seen, Jamie's saliva is basically not dispersed, most likely related to his beard, after calculation the final result is 62 kilometers per hour, although the speed is a little faster than Adam, but still did not reach the results of the rumor, which also means that people sneezing, can not reach the speed of 160 kilometers per hour.

Next began to test whether the sneeze can spread to nine meters away, because the squirt is white, not easy to observe, Jamie came up with a good way to do this, that is, the red cherry flavored children's punch, with snus inhaled together, the saliva will fall on the white paper on the ground, showing a red dot, that is, convenient to observe and easy to calculate, Adam decided the first experiment, he is still the previous action and expression, but this time the snuff mixed with the sweetness of the fruit, making Adam look very uncomfortable, with a sound Aqiu Adam sneezed smoothly, and then began to check the distance, Jamie walked around a few times on the white paper, never finding the legendary red dot, apparently this method failed, Adam in order to alleviate the embarrassment at the time, came up with a better way.

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

Do you know how far a sneeze can reach, there may be such a hint in public, people try to use paper towels when sneezing, or block the inside of the elbow, once there is no protective measure or block with the palm of the hand, it will spread a large number of germs, want to know the transmission distance of a sneeze, rumor terminator with experiments to show everyone, after the failure of the last episode, Adam thought of a better way, he replaced the children's punch with food coloring, and took the food coloring in his mouth at the moment of sneezing, So you can clearly see the distribution of saliva, and then start experimenting, it may be that the sneeze is too much, Adam stands there sneezing and can't stop, the mouth has been spewing red liquid, the room is like a murder scene, after the investigation of the two people, the farthest distance of the red dot is 5.1 meters, although it did not reach the rumored 9 meters, but from this result, the power of the sneeze is still quite large, Adam is not willing to stop, planning to use blue liquid to do it once.

From the high-speed camera, it can be seen that at the moment when Adam sneezed, a blue water mist spewed out of his mouth, if you replace the blue liquid with germs, you can imagine how terrible the spread is, after two comparisons, The farthest distance is 5.3 meters, or did not reach the rumored 9 meters, they felt that people and human physique is not the same, decided to let Jamie try, Jamie this time changed to green liquid, in the sneezing out of the moment, his beard is also dyed green, the water mist is obviously not as much as Adam, after testing Jamie's farthest distance is 3.9 meters, the final result is that the rumor is false, it is impossible to spray to nine meters away, but despite this, it is enough to spread a wide range of germs, after the above experiments we know, the speed and distance of sneezing, and then Adam and Jamie intend to explore, the spread of germs, if sneezing What would you do without paper or anything else obscuring it, some people might cover their nose and mouth with their hands and think that this would prevent the spread of germs, which would be a mistake, because germs will remain on your hands, and when your hands touch other objects, it is meant to be spreading continuously, and if you don't believe it, Adam and Jamie can do experimental proof.

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

Do you know how many germs can be transmitted when people have a cold, in the last episode of the experiment, Adam and Jamie tested, sneezing speed of 56 km / h, The farthest distance is 5.3 meters, you can imagine if you do not do measures, how many germs can be transmitted by a sneeze, then Adam and Jamie, intend to experiment with people when they have a cold, how many germs will be inadvertently transmitted, before the experiment to understand the characteristics of the cold, Jamie found an expert in this area, she said to Jamie that the spread of germs is very widespread, the spread of nasal discharge when the cold is also very large, if the nasal passage of normal people is the standard, it can produce about 60 ml per hour, it can also be said that it is 60 cubic centimeters per hour, the snot will stick to the hands of others in a variety of ways, and then enter the mouth and nose through the hands, thus forming an infection.

After understanding this knowledge, Jamie made a drip device for this purpose, used to imitate the scene of people running nose, in the process of use, it must be pressed tightly, accurate its flow rate, and then please take out ya as an experiment, he put the thin tube of the device next to the nose, constantly flowing red liquid, Adam wiped his nose like a very cold state, it seems that the effect of this device is good, then start the experiment, the steps of the experiment are that they will put some fluorescent liquid in the device, The liquid flashed an orange light when illuminated by blue light, and to ensure there would be no cross-contamination, Jamie first checked the table.

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

Then Jamie called the snot device, and Adam in the boring time, planned to make some models, inadvertently Adam kept wiping his face, sometimes with his hands simply wiped, sometimes with paper, as if he had forgotten this matter, after an hour of time, the liquid of the device has been streamed, and then began to witness the appearance of miracle hits, under the illumination of blue light, Adam's face and hands and body, covered with fluorescent night, look at the table and model, as if coming to the ball, Everywhere there was sparkle, everything Adam touched was not spared, all stained with fluorescent liquid, had to admit that the unintentional spread was so powerful, but also importantly, Adam was only in this area, if the scope of the activity is larger the number of spread, it will become more, and then they invited good friends to participate in the experiment, in order to be closer to reality, Adam and Jamie did not tell them that it was an experiment.

MythBusters: How many germs can be spread by a sneeze, scientists teach you how to prevent it

At the dinner table, Adam kept helping friends pour wine, a few people do some small games, in this unintentional action, in fact, has spread a lot of liquid, after an hour of dinner, then began to witness the results of the experiment, at this time Adam is full of faces, the body is not spared, everyone on the table, there are obvious traces of infection, see this result of everyone, seems very shocked, so everyone in the cold, must take precautions, protect themselves is to protect the family, The video ends here, welcome to leave a message in the comment area, thank you for your attention!

Read on