1:00:58
Recommended
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
There is a terrifying legend circulating deep in the dense forests of Xishuangbanna, Yunnan. There is a man-eating blanket-like monster in the Lancang River that sucks human blood. It is extremely terrifying. Once encountered, there is no possibility of survival. Is this true?
The "blood-sucking blanket" in the Xishuangbanna River drags animals into the water and eats them. What kind of animal is it?
06/10
1236
When it comes to invasive alien species, the first thing that comes to everyone's mind is that they have no natural enemies and reproduce wildly, seriously threatening the local ecological balance. Since the spring of 2022, a large number of invasive alien species have appeared i
A large number of white mud ants appear in Qingdao! A boat catches 200 kilograms a day, and not only are they inedible, but they also eat clams
06/09
1094
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
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
1930
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
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
1082
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?
06/10
1657
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
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
1876
Relation Video
10. Solar photovoltaics...
1:15:01
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
As the traffic volume on the highway increases, some drivers with weak safety awareness always park at will on the highway for various reasons, forgetting about safety, and the result is often the cost of their lives.
The cost of parking haphazardly on the highway is too high!!!
06/17
1011
With the end of the strongest "Dragon Boat Flood", in order to make every effort to resume work and production after the disaster, the Party Committee and Government of Yangmei Town, Yangshan County have been actively implementing the work arrangements of the County Party Committ
Interpreting the mission and responsibility of "Grid Blue"|Yangmei Town grid members help the resumption of work and production proceed in an orderly manner
06/17
1687
During the "Yangmei Festival", weekends are often the peak travel time. The southern connection line of the G15 Shenhai Expressway Cross-sea Bridge runs through Cixi and Cicheng, Jiangbei, and borders Sanqi City, Yuyao. There is an endless stream of tourists passing through this
These sections of Ningbo Expressway are about to experience heavy traffic! Please keep this guide
06/17
1701
Late at night on November 10, a large double-axle truck rolled over on Xiaoyakou Road in Yangmei Township, Shuicheng County, and the driver was trapped. Firefighters worked overnight to rescue him, but when they dug him out of the coal pile, the driver was unfortunately dead.
Liupanshui coal truck rolled over and the driver was buried instantly. Firefighters spent 3 hours digging to find the body.
06/17
1592
At about 14:00 on November 13, five cadres of the Ningqiang County Animal Husbandry Center were involved in a traffic accident on their way back from Maozui Village, Guangping Town, where they were carrying out poverty alleviation work, causing serious injuries.
Five cadres in Shaanxi encountered a traffic accident on their way back from poverty alleviation. One died on duty and four others were injured.
06/17
1899
Five cadres in Shaanxi encountered a traffic accident on their way back from poverty alleviation [5 cadres in Shaanxi were involved in a traffic accident on their way back from poverty alleviation, one died on the job and four were injured] On November 14, Fang Hongwei, Secretary
Five cadres in Shaanxi encountered a traffic accident on their way back from poverty alleviation. One died on duty and four were injured.
06/17
1139