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Rats are a very disgusting animal. Many people eat the food they just bought at home before they even open it and taste it. People usually gnash their teeth when talking about this animal. From ancient times to the present, people have used various methods to try to eliminate the
What would happen if all the rats in the world died? Will mankind also suffer catastrophe?
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1366
[Source: Shunyi Ecological Environment] Ubiquitous plastic products have facilitated people's lives, but the resulting plastic waste has caused a lot of pollution to the ecological environment...
"Popular Science" "Degradable Plastics" Revealed
06/10
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One laboratory announced its new establishment. From a common sense point of view, since it has been released to the public, it must not be a small laboratory or it must be responsible for some insignificant fringe projects; since a laboratory has been established and publicly an
What big project is this new laboratory doing?
06/10
1994
Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field.
Cell | David Liu and others review the research progress of gene editing vectors
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Human beings cannot prevent aging, but they can use chips to store brain information, give up their physical bodies, and resurrect with the help of robot bodies. This is the future immortality of mankind, which is the immortality we have been pursuing.
From the machine age of unmanned factories to humans giving up their physical bodies and returning to eternal life
06/10
1909
This article is original to the Translational Medicine Network. Please indicate the source when reprinting. Author: Lily Introduction: Fat cells can be divided into "white" and "brown" - white fat cells are responsible for storing fat, and their weight accounts for about 15%-20%
"Nature" rekindles brown fat cells and eliminates excess fat
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The spring itself is elastic. After being compressed, the spring will have the tendency to return to its initial state, and therefore has elastic potential energy. We can think of it as the energy stored in the overall system of the spring. So the question is Question: If a compr
Put a compressed spring into strong acid. After the spring dissolves, where does the energy of the spring go?
06/09
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It might be tempting to use a cup with a green “Plant-Based” label for a cup of coffee, or see that the plastic utensils in your takeout are “100% compostable.” Some comfort. So could a plastic made from plants rather than petroleum actually melt harmlessly in the environment?
"Science" Have you ever used environmentally friendly plastics made from plants?
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This year's high temperature weather has left a deep impression on people. Since June, heat waves have occurred in many places in our country. Starting from July 6, a new round of heat waves is sweeping through parts of the northwest, north and south of our country. It is expecte
It’s heating up! Global glaciers are disappearing rapidly, and the Everest glaciers are also melting. The Arctic may be ice-free in 13 years
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1383
Every spring and summer is the time when most young birds learn survival skills such as leaving the nest to fly and foraging for food. Due to rain, strong winds, physical strength and other reasons, many young birds will accidentally fall from the trees when learning to fly. . Wh
Don't pick up the birds on the roadside! Please let them go home on their own
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Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l
Intelligent slime mold
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01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio
Golden sentence#星星——All my desires and contemplations are the slowly exhaled air currents of this universe.
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Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S.
Water was discovered in ancient galaxies, which surprised astronomers. What happened?
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Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th
Filling in many scientific research gaps! The China Spallation Neutron Source will be in operation for four years丨The party flag is flying high at the grassroots level
06/11
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In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality.
Introduction to applicable industries of mycotoxin detectors
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How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can
Instructions for using online residual chlorine analyzer
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1125
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The Remington 870 shotgun, Remington's signature product, was successfully developed in the 1950s and is known for its simple structure, low price, and high reliability. More than 12 million shotguns have been sold since its launch.
A large collection of individual weapons currently in service in the U.S. military—shotguns
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1677
QBS09 military shotgun caliber: 18.4mm The QBS09 military shotgun, in the design finalization stage, completed the national shooting range design finalization test and troop testing (hot/sea area, sandy area and cold area), and continued to improve on problems that emerged in the
Weapon丨Domestic QBS09 military shotgun!
06/11
1775
Speaking of smoothbore shotguns, things that spray projectiles are generally regarded by me as having little technical content, but because almost everything is stuffed in the shotgun, it is very versatile.
The alternative style of shotguns, the road to tungsten core for domestically produced 09-type military spray guns
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1637
Generally, the most common shotguns can be divided into hunting, competitive, military and security purposes. This gun type has the characteristics of large caliber but low muzzle velocity. The kinetic energy of the muzzle is similar to that of a sniper rifle, but due to the low
Handsome shotgun: American Mossberg’s tough style “wild shotgun weapon”
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1541
From left to right: .416 Huffman rifle bullet, .404 Jeffrey rifle bullet, .577 "Tyrannosaurus" rifle bullet, .600 NE rifle bullet, .577 NE rifle bullet, .460 Weatherby horse Gurnum rifle bullets, .505 Gibbs rifle bullets, .700 NE rifle bullets, .950 JDJ rifle bullets, .55 Boyce a
Specially for hunting giant beasts? Inventory of the top ten sports/hunting bullets with muzzle kinetic energy exceeding 10,000 (Part 1)
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1432
In my opinion, this is just because of the lack of understanding of some characteristics of the weapon. The main joint of this distinction is the single-shot bullet used in the shotgun. Once you understand it, you can understand it.
The beginning of the development history of domestic shotguns (Type 97 gun family)
06/11
1094