How to Tell Real Diamonds from Fake

2024/04/2414:04:05 science 2523632

How to Tell Real Diamonds from Fake - DayDayNews

How to Tell Real Diamonds from Fake - DayDayNews

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When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock - DayDayNews

When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock

Don’t step on cockroaches in your home! How to control cockroaches that are still alive even though their heads are severed?

05/18 1074

Atoms were once considered to be the basic particles of everything in the world, but later people discovered that atoms are composed of nuclei and electrons, and there is a vast space between the nuclei and electrons. How vast is it specifically? Let us take the simplest atom in - DayDayNews

Atoms were once considered to be the basic particles of everything in the world, but later people discovered that atoms are composed of nuclei and electrons, and there is a vast space between the nuclei and electrons. How vast is it specifically? Let us take the simplest atom in

What exists in the vast space between the nucleus and the electrons? Is it an absolute vacuum?

05/18 1428

I once read "Insects" when I was young, and I was full of yearning for the insect world described by Fabre. I often turned over stones or inspected leaves to look for the small insects hiding in the depths. As I get older, I gradually develop an inexplicable fear of insects in na - DayDayNews

I once read "Insects" when I was young, and I was full of yearning for the insect world described by Fabre. I often turned over stones or inspected leaves to look for the small insects hiding in the depths. As I get older, I gradually develop an inexplicable fear of insects in na

An insect pocket book that brings you closer to nature

05/18 1720

We often say that China has five thousand years, which naturally adds up to ten thousand years. Ten thousand years ago is a very interesting node, because it is the time period when humans turned from hunting life to farming. Farming represents villages, and the combination of vi - DayDayNews

We often say that China has five thousand years, which naturally adds up to ten thousand years. Ten thousand years ago is a very interesting node, because it is the time period when humans turned from hunting life to farming. Farming represents villages, and the combination of vi

Could it be said that humans more than 12,000 years ago really existed?

05/18 1065

@真知新ordinate Popular science and cold knowledge 1. Lamprey Lamprey has lived on the earth for hundreds of millions of years, and it has always maintained its appearance in ancient times, so it is also called a "living fossil." Later this creature was assigned to the superclass Ag - DayDayNews

@真知新ordinate Popular science and cold knowledge 1. Lamprey Lamprey has lived on the earth for hundreds of millions of years, and it has always maintained its appearance in ancient times, so it is also called a "living fossil." Later this creature was assigned to the superclass Ag

Seven exotic species, one relies on breeding and one is prohibitive

05/18 1704

NASA Administrator Nielsen has made "wild remarks" in the media again. In a recent interview with Germany's "Bild", he said, "Beware of China occupying the moon." - DayDayNews

NASA Administrator Nielsen has made "wild remarks" in the media again. In a recent interview with Germany's "Bild", he said, "Beware of China occupying the moon."

Afraid? NASA Administrator: Watch out for China occupying the moon! Who wants to bypass the Outer Space Treaty?

05/17 1920

On July 3, Typhoon Siam made landfall in South China and is pouring rain in many places in the south. Typhoon Airi is moving in the Western Pacific. Today, its center has moved into the East China Sea, bringing refreshing blue sky and white clouds to many places in the Yangtze Ri - DayDayNews

On July 3, Typhoon Siam made landfall in South China and is pouring rain in many places in the south. Typhoon Airi is moving in the Western Pacific. Today, its center has moved into the East China Sea, bringing refreshing blue sky and white clouds to many places in the Yangtze Ri

rare! As hot and high pressure climbs up the Tibetan Plateau, will there be problems with the glaciers? Analysis: Northwest or extreme heat

05/17 1033

Dahe Daily·Yu Video Reporter Liu Ruichao Kang Yafei There is a famous story in "Liezi·Tang Wen", which is "Two Children Debating the Sun" in the textbook, "Confucius traveled eastward and saw two children arguing and asked why." Two children analyze from different angles when the - DayDayNews

Dahe Daily·Yu Video Reporter Liu Ruichao Kang Yafei There is a famous story in "Liezi·Tang Wen", which is "Two Children Debating the Sun" in the textbook, "Confucius traveled eastward and saw two children arguing and asked why." Two children analyze from different angles when the

The "smallest sun of the year" appeared on Monday, and the "dog days" are gradually approaching

05/18 1459

The lobsters mentioned here specifically refer to the giant lobsters that live in the ocean. Their appearance is similar to the common lobsters in our lives, but their sizes are much larger. The reason why lobsters are said to be immortal is mainly related to an accidental captur - DayDayNews

The lobsters mentioned here specifically refer to the giant lobsters that live in the ocean. Their appearance is similar to the common lobsters in our lives, but their sizes are much larger. The reason why lobsters are said to be immortal is mainly related to an accidental captur

Theoretically, lobsters can live forever

05/18 1605

Text and photos/Yangcheng Evening News all-media reporter Ouyang Zhiqiang Correspondent Huo Erman Sponsored by China Electronics Society, Intelligent Human-Computer Interaction Expert Committee of China Electronics Society, Aerospace Medical Engineering and Space Biology Professi - DayDayNews

Text and photos/Yangcheng Evening News all-media reporter Ouyang Zhiqiang Correspondent Huo Erman Sponsored by China Electronics Society, Intelligent Human-Computer Interaction Expert Committee of China Electronics Society, Aerospace Medical Engineering and Space Biology Professi

The Second Annual Conference on Intelligent Human-Computer Interaction Technology will open in Foshan on July 8

05/17 1830

Fang Zhouzi has disappeared from the public eye for several years. He was once a pioneer in fighting counterfeiting and was frequently active in various column groups. He was also called the "Internet Lu Xun". No matter how good a scientific person is in school, in order to produ - DayDayNews

Fang Zhouzi has disappeared from the public eye for several years. He was once a pioneer in fighting counterfeiting and was frequently active in various column groups. He was also called the "Internet Lu Xun". No matter how good a scientific person is in school, in order to produ

Do you still remember Fang Zhouzi? Is he a scientific person or a highly educated paparazzi?

05/19 1695

Last night I went for a walk and saw two primary school students arguing fiercely in the elevator. When one of the boys saw me, he anxiously asked me to be the referee and asked: "Uncle, do you think there are really points, straight lines and points in the universe?" Plane?" I t - DayDayNews

Last night I went for a walk and saw two primary school students arguing fiercely in the elevator. When one of the boys saw me, he anxiously asked me to be the referee and asked: "Uncle, do you think there are really points, straight lines and points in the universe?" Plane?" I t

Are there points, lines and planes in the universe? Will the "two-way foil" in "The Three-Body Problem" exist?

05/19 1848

I saw a piece of news in which NASA Administrator Nielsen announced that China wants to occupy the moon and asked everyone to be careful. I think this director is too naive. The moon has been occupied by the Chinese a long time ago, so there is no need to think about occupying it - DayDayNews

I saw a piece of news in which NASA Administrator Nielsen announced that China wants to occupy the moon and asked everyone to be careful. I think this director is too naive. The moon has been occupied by the Chinese a long time ago, so there is no need to think about occupying it

The moon has been Chinese since ancient times. Nielsen, please shut up. We don’t need to occupy it.

05/19 1973

According to statistics, there are 1.5 million species of animals on the earth. In order to thrive on this beautiful planet, each animal has its own unique secret weapon. There is a group of animals that are the masters of poison in the animal kingdom, making them intimidating to - DayDayNews

According to statistics, there are 1.5 million species of animals on the earth. In order to thrive on this beautiful planet, each animal has its own unique secret weapon. There is a group of animals that are the masters of poison in the animal kingdom, making them intimidating to

The 5 most poisonous animals in the world, some of which have no cure

05/19 1111

Using the locust disaster as a clue and Lockwood's arrest as an auxiliary clue, the plot unfolds bit by bit, going through the black market transactions, dinosaur park, isolation zone, and successful rescue. Because it is a 3D effect, the picture is very good. It's amazing, espec - DayDayNews

Using the locust disaster as a clue and Lockwood's arrest as an auxiliary clue, the plot unfolds bit by bit, going through the black market transactions, dinosaur park, isolation zone, and successful rescue. Because it is a 3D effect, the picture is very good. It's amazing, espec

Jurassic World 3 - Thoughts

05/19 1894

In recent years, China has developed rapidly in the aerospace field. In fact, this can be seen from a series of remarks by NASA Administrator Nielsen, because he will mention China and criticize China on more and more occasions. - DayDayNews

In recent years, China has developed rapidly in the aerospace field. In fact, this can be seen from a series of remarks by NASA Administrator Nielsen, because he will mention China and criticize China on more and more occasions.

Another weird comment! NASA Director: Beware of "China Occupying the Moon", Netizens: The situation is really low

05/19 1045

There are 167 new high-quality junior high schools in Zhengzhou (including 95 new high-quality junior high schools in the first batch; 30 are under establishment and 42 are under cultivation) in 8 districts of the main city + port area: Jinshui District has the most, 22; Erqi Dis - DayDayNews

There are 167 new high-quality junior high schools in Zhengzhou (including 95 new high-quality junior high schools in the first batch; 30 are under establishment and 42 are under cultivation) in 8 districts of the main city + port area: Jinshui District has the most, 22; Erqi Dis

These 37 schools in the main urban area of Zhengzhou have more potential than most of the “first batch of new high-quality junior high schools”

05/19 1604

On June 30, 2022, the Jinan City Shizhong District Education System Party Building Research and Training Integration Project Team gathered at Wenjing Primary School to solemnly hold a special on-site meeting of carols, research and training to celebrate the "July 1st". - DayDayNews

On June 30, 2022, the Jinan City Shizhong District Education System Party Building Research and Training Integration Project Team gathered at Wenjing Primary School to solemnly hold a special on-site meeting of carols, research and training to celebrate the "July 1st".

Carols and gifts, research and training colleagues - Wenjing Primary School in Zhong District, Jinan City celebrated "July 1" special on-site meeting

05/19 1570

The couple spent 640,000 to demolish the living room just to build an aerial amusement park for their two daughters. They are so happy that their daughter is the apple of their parents' eyes. They are afraid of falling when they hold it in their hands, and they are afraid of melt - DayDayNews

The couple spent 640,000 to demolish the living room just to build an aerial amusement park for their two daughters. They are so happy that their daughter is the apple of their parents' eyes. They are afraid of falling when they hold it in their hands, and they are afraid of melt

The couple spent 640,000 to demolish the living room just to build an aerial amusement park for their two daughters. They are so happy

05/19 1062

Don’t throw away a drop of the air-conditioning water flowing out of the air conditioner. We can save a lot of money by putting it at home and using it. The method is simple and practical. Let’s learn about it together. - DayDayNews

Don’t throw away a drop of the air-conditioning water flowing out of the air conditioner. We can save a lot of money by putting it at home and using it. The method is simple and practical. Let’s learn about it together.

Don’t throw away a drop of water from the air conditioner. Keep it at home and use it like this. You can save a lot of money by learning how.

05/19 1071

As we all know, when buying a house, we should first give priority to the house type with an exposed guard. However, many people do not care about this issue, or for comprehensive considerations, they have to choose a house type with a hidden guard. Even so, I advise you not to g - DayDayNews

As we all know, when buying a house, we should first give priority to the house type with an exposed guard. However, many people do not care about this issue, or for comprehensive considerations, they have to choose a house type with a hidden guard. Even so, I advise you not to g

"Secret Guards" are not scary. The following four points should be kept in mind. They are all summed up by people who have experienced them.

05/19 1000

502 glue is also a relatively common thing. In daily life, we also use 502 glue to stick some objects. What should we do if our fingers are accidentally stuck by 502 glue? Don't worry, in fact, we only need to drop a little bit of it, and the glue will melt easily without hurting - DayDayNews

502 glue is also a relatively common thing. In daily life, we also use 502 glue to stick some objects. What should we do if our fingers are accidentally stuck by 502 glue? Don't worry, in fact, we only need to drop a little bit of it, and the glue will melt easily without hurting

What should I do if my hands are stuck with 502 glue? Don't worry, just drop a little and the glue will melt immediately without hurting your hands.

05/19 1117