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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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my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful
Xining is awesome! For the first time, China achieved
06/09
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The Earth is a planet filled with liquid water, with approximately 71% of its surface area covered by seawater, and this number is getting larger as sea levels rise due to global warming. Many people may have wondered what the bottom of the sea looks like. The simple answer is th
Why is it said that it rained for millions of years before the earth finally had an ocean?
06/09
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Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl
Why do American experts want to blow up the moon and leave the earth without seasons? What is their purpose?
06/10
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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
06/09
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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
Researchers including Daohua Jiang from the Institute of Physics, Chinese Academy of Sciences, and William Catterall and Ning Zheng from the University of Washington analyzed the structure of the open-state cardiac sodium channel (NaV1.5) and analyzed its working principle (1).
Cell | Open state myocardial sodium channel structure
06/09
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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
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In modern astronomical theory, the formation of important celestial objects such as double black holes, double neutron stars, and double white dwarfs are the result of the evolution of the shared envelope of binary stars. A few days ago, the research team of Academician Han Zhanw
An Appointment in the Starry Sky | Exploring the evolution of binary stars. Scientists found direct evidence of shared envelope evolution for the first time
06/10
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Protecting wild animals is everyone’s responsibility. The reporter learned from the Guangdong Coast Guard Bureau on July 7 that recently, law enforcement officers from the Nan'ao Work Station of the Guangdong Shantou Coast Guard Rescued a pangolin, a national first-level wild pro
Meet a "cute" on the road! Coast Guard law enforcement officers warmly rescue pangolins, national first-level protected animals
06/09
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Consolidation Begins!...
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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
06/11
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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.
06/11
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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?
06/11
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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
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
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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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Site Latest News
Affected by the economy and policies, the yen has continued to depreciate, and the U.S. dollar has recently risen to around 137 against the yen, a new high since 2000. At present, the yen has depreciated sharply, but Japan's trade deficit is expanding. After analysis, we believe
Japan丨The depreciation of the yen and the expansion of Japan’s trade deficit
06/16
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A single-digit daily limit appeared on May 12, 2015, and the stock price began to break through the consolidation pattern and reversed upwards. It chased the increase the next day, and then continued to increase. Operation essentials: When the limit is unlimited, the volume must
The iron rule of buying the bottom without losing money: arc bottom + MACD double line in one + seamless = big bull stocks
06/16
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1. The meaning of the pattern: The stock price has been adjusted for a long time, and the DIF line and DEA line of the MACD indicator have begun to stick together below the O axis. Once the DIF line breaks away from the DEA and moves upward, it indicates that the main force has a
What the trader says from the bottom of his heart: MACD's "two lines merge into one" appears, and if you buy it, it will rise.
06/16
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Today, GF, ICBC Credit Suisse and other fund companies issued the "Announcement on the Implementation of the Integration of Multiple Codes for Subscription and Redemption Business of the Shanghai-listed ETFs managed by them". According to the announcement of Guangfa Fund, accordi
A major matter related to the 1.1 trillion fund! The Shanghai Stock Exchange’s ETF subscription and redemption business is integrated into multiple codes, which has the following impacts:
06/16
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If you operate by yourself, please pay attention to position control and take risks at your own risk. ) No matter how complicated the stock operation is, there are only two core aspects, one is to buy at a low price, and the other is to sell at a high price.
Once you encounter the "three lines in one" pattern, jump in immediately. That is the best short-term buying point! Should not be missed
06/16
1888
It is not technology but strategy that determines the success or failure of a transaction. Among the few traders who make money in the market, they are basically masters and professionals. In the market, 98% believe in technology, 2% pursue fund management and are well versed in
Moving average + moving average line + MACD three-line golden cross = victory in every battle. It is recommended to enter the market decisively with full position. Buying at the lowest point is no longer a dream.
06/16
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