9:40
Recommended
The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast
Cold Knowledge of the Qing Dynasty - Metallurgical and Machinery Manufacturing Achievements of the Qing Dynasty
06/10
1613
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
Paris, July 7, local time, France had 161,265 new confirmed patients and 89 new deaths within 24 hours, bringing the total to 149,943.
An increase of 161,000 cases! New variant of COVID-19 detected in Europe! Fuel subsidy launched in October! France plans to limit property tax increases! Pasta and meat prices are going crazy
06/10
1662
Since the terms information and entropy are used in many branches of science, this may sound strange to those familiar with the second law of thermodynamics. How could information and entropy be identical?
Conservation of information and the second law of thermodynamics, how can these basic laws be consistent?
06/09
1012
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
1513
As we said before, oracle bones are keel bones and belong to the fossil category. So the first question is, did these fossils appear first and then people carved them on them, or did people find these bones first and carve words on them, and then these bones gradually evolved int
"Quest Files" Unsolved Mysteries of the World - The Black-Headed Man from the East 2
06/10
1017
Have you ever thought about the possibility of regenerating those brain cells you sacrificed in college? Medicine is being rewritten and we may be able to repair our brains, and it's something anyone can do.
Can the brain regenerate? 5 ways and habits to reverse brain aging
06/09
1890
We’ve seen blue skies on sunny days, black skies on rainy days, gray skies on cloudy days…but what about green skies? It seems that it is only possible in science fiction movies, or on some alien planet beyond the earth. Will there be green skies on the earth we live on? The worl
Is the green sky suddenly appearing in the United States an ominous sign?
06/09
1472
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
06/10
1497
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
Relation Video
science Relation Video
Site video recommendation
science Latest News
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
06/11
1668
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.
06/11
1169
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?
06/11
1154
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
1511
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
06/11
1040
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
06/11
1125
Site Latest News
The International Women's Tennis Association (WTA) announced today the distribution of major player awards for the 2020 season, including five categories: Player of the Year, Best Pair, Most Improved Player, Best Newcomer and Best Comeback Player. All winners are from internation
Annual Awards | WTA announces 2020 Player Award winners
06/15
1527
Today is Monday, February 12, 2018. Let’s enjoy a tennis news dinner organized by Tennis House. 1. Halep, the Romanian second in the world, failed to renew her contract with Adidas in the new season and was once in an embarrassing state without sponsorship.
Three-minute tennis evening news on February 12, 2018 (Monday) (audio-visual version)
06/15
1372
Liu Wenru, Secretary of the Jinjiang Municipal Party Committee, took over the World High School Games flag. Southeast Net reported on May 9 that from the Mediterranean Sea to the East China Sea, from the Pacific Ocean to the Atlantic Ocean. Jinjiang took over the flag of the Worl
The 17th World High School Games ends with Jinjiang taking over the flag
06/15
1522
Specifically, at 8:00 on May 9, Beijing time, at the International World Games Federation 2019 Plenary Session held in Gold Coast, Australia, Chengdu successfully won the right to host the 2025 World Games.
What’s so interesting about the World Games to be held in Chengdu in 2025?
06/15
1381
**After four years, the World Games flame was finally rekindled a few days ago in Wroclaw, Poland. This year's World Games will be held from July 20th to 30th, and the billiards competition will start on the 26th and last for five days.
The World Games opened in Poland. There were two women in the 16-person snooker draw, and Chinese teenager Xu Si participated.
06/15
1324
On the 13th and 14th of this month, the International World Sports Association has conducted an inspection and evaluation of Chengdu's bid to host the World Games, and commented: "Judging from the inspection situation, we believe that Chengdu has the ability to successfully host
This is the first time I know that the World Games that Chengdu is bidding to host are so fun!
06/15
1424