Why do so many people in the group photo always see themselves at first sight?

Have you ever found that when your photos are mixed with those of others, you can always find yourself at a glance. In the photos of various collective activities, on the photo wall of the company, and in the videos accidentally taken by others. Recently, scientists have found that when people “accidentally” see themselves, the …
Continue reading Why do so many people in the group photo always see themselves at first sight?

How to decipher the “smart action” of bacteria?

In March 1968, in Texas, USA, scientists Ellis Kempner and Frank Hansen were confused about how a bacteria from the ocean (now known as Vibrio fischeri) glows .  Bioluminescence is widespread in nature and can be used to attract mates, lure prey, and deter predators. Most animals that emit light live in the ocean, and …
Continue reading How to decipher the “smart action” of bacteria?

Subversion! Can’t you drink a lot of water during a cold? It’s time for you to know the truth

Ahchoo! Ahchoo! Ahchoo! It’s cold recently. Many people catch a cold accidentally. Most people’s attitude towards colds is: it’ll be fine in a few days; No need to take medicine and just drink more water Then you misunderstand cold! Obviously, drinking more water does get better quickly. Why can’t you drink more water when you have a …
Continue reading Subversion! Can’t you drink a lot of water during a cold? It’s time for you to know the truth

Why are there 21 serrations on every beer bottle cap? It turned out to be because…

How many serrations are there on the cap of a beer bottle? This must be able to baffle many people. To tell you exactly, all the beer you see every day, whether it is a large bottle or a small bottle, has 21 serrations on the lid. Then why are there 21 serrations on the …
Continue reading Why are there 21 serrations on every beer bottle cap? It turned out to be because…

9 popular toothpastes. What stomatologists really recommend is…

Enzyme toothpaste This is not high technology. Enzyme = ferment, that is, a biocatalyst. Many things can be used as enzymes, so enzyme toothpaste alone is actually very general. Obviously, this is also the product of changing soup without changing medicine under the net red tide of “all things can ferment”. Baking soda toothpaste It may …
Continue reading 9 popular toothpastes. What stomatologists really recommend is…

Some habits that hurt your teeth most! After reading the first one, I found that I had been doing wrong

The tooth care is not standardized, and the toothache is terrible. I believe many people have experienced toothache. This is because you don’t pay attention to oral health. Taking care of your teeth seems small, but it is easy to ignore. There are many places worthy of our attention 4 habits damage tooth health 01 …
Continue reading Some habits that hurt your teeth most! After reading the first one, I found that I had been doing wrong

The birth of the first generation of stars in the universe

Half a million years after the Big Bang, the hot radiation gradually subsided and the temperature slowly dropped. At this time, matter in the universe began to dominate, neutral atoms could not be ionized, and gravity began to work. From then on, it took about 50 to 100 million years for the universe to form …
Continue reading The birth of the first generation of stars in the universe

Moon — the “black and white diary” of the Milky way

Long ago, what was the sun like? What happened in the Milky way and have to tell the story? If you want to know these secrets, come to the moon and read its “diary”. How does the moon write a diary Using the methods of stratum coverage, statistical analysis of impact crater density and lunar …
Continue reading Moon — the “black and white diary” of the Milky way