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Italian physicist Volta invented the battery. Italian physicist Volta. Although electric lights, telephones, refrigerators, televisions, and computers have entered people's homes, electric motors are also widely used in factories. These strong currents are drawn from generators.
"The Story of Invention" (74) - Italian physicist Volta invented the battery
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In recent decades, with the release and strong support of domestic and foreign policies, cell therapy has achieved rapid development. Various clinical studies related to cell therapy have been carried out around the world, and cell therapy-related companies have also emerged. The
Advantages and trends of Lonza Cocoon fully enclosed automated cell therapy in the production process
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Due to the vastness of the universe and the diversity of life, many people have always believed that aliens should exist in the world. In recent years, with human exploration of cosmic civilization, both scientists and ordinary people have become more concerned about extraterrest
The Love Island star claims to have seen a UFO with her brother, and says her phone was interfered with by three purple aliens
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Some time ago, the issue of electric earthworms aroused widespread attention and discussion among netizens. Electric earthworms use a machine similar to electric fish to insert two electrodes into the ground. After turning on the switch, the earthworms will automatically drill ou
After earthworms, wild scorpions are also in crisis. Scorpion catchers are searching all over to find out how harmful they are.
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Our country has a vast territory and has all kinds of terrains. Among them is a kind of landscape, the cause of which scientists have not been able to figure out yet. The story starts with NASA satellites in the United States in 2014. When they passed through the sky over Inner M
American satellites have made a major discovery: There is an "Eye of the Desert" in Inner Mongolia, China! The cause is a mystery
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The study, published in Science on June 30, reports that the implant is made of biodegradable materials and is designed to reduce postoperative pain. There is an urgent need for better ways to relieve pain because currently available opioids can be addictive, and ice packs or coo
Still using ice cubes to relieve pain? Science: Try this method
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"Genius is on the left, madman is on the right." "The ultimate genius is madness, and the ultimate madness is genius." Regarding this point of view, some people agree and some do not.
26 years ago, the high school student who built a "nuclear reactor" at home later died of alcoholism and poisoning
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Only three scientists worldwide have received this honor. Yuan Daoxian, a professor at the School of Geographical Sciences of Southwest University, is among them. He is a famous geologist, hydrogeologist and karstologist.
There are only three in the world, and the Chinese are among them
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Introduction: What is the "purple grape" plant commonly seen on the roadside? Are its fruits edible? Why? As the saying goes: Knowledge is treasure, ignorance is grass. In the mountains in the countryside, there are all kinds of plants everywhere. Any plant is valuable to someone
What is the "purple grape" plant commonly seen on the roadside? Are its fruits edible? Why?
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Although infinity is a rather illusory and abstract concept, and it is quite taboo in physics to use any definition of "infinite", it is still a very interesting question. Let's not talk about "infinitely long" ladders for now. Perhaps it is more acceptable to use "long enough".
Can we use an infinitely long ladder to leave the earth without reaching the first cosmic speed?
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I wonder if you have noticed a special-looking plant when you often go to the river in summer. There is a wetland park near my home. In the summer, I will go to the wetland park with my family. When passing by a place with water, I can see a plant that looks like a sausage, becau
Cattail: looks like a "sausage" and is common near water. It has many values and is full of treasures.
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The World Meteorological Organization stipulates that when a certain climate element(s) reaches a return rate of 25 years, it is called an extreme climate. Extreme climates include droughts, floods, high-temperature heat waves, and low-temperature cold damage. As pollution become
Abnormal weather will occur in many places in 2022! Are Hawking's climate predictions credible? Analysis: Be wary of extremes
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Modern science believes that our universe was born 13.8 billion years ago. 13.8 billion years ago, a singularity exploded. The singularity is an infinite mass, infinite energy, infinite heat, infinite mass, and infinite density. Large, infinitely small point. After the explosion
There is a gravitational source outside the orbit of Pluto. Scientists: It may be the legendary ninth planet
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When it comes to snails, the first thing that comes to mind is that they have a thick shell. In fact, in addition to being known for their thick shells, snails are also the animals with the most teeth in the world.
Snails are said to be the creatures with the most teeth in the world. So what are the uses of so many teeth?
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Walking people have to adjust their gait again and again to walk on curbs or steps. Whether intentionally or not, everyone has developed control strategies to control muscle activity in response to changes in the outside world, thereby protecting them from tripping. effects of ti
Two main strategies for robot gait control
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The majority of overseas Chinese are very concerned about Hong Kong's continued stability, prosperity and development. Recently, Sun Dawen, a well-known Chinese scientist and academician of the European Academy of Humanities and Natural Sciences, wrote an article to express his w
[Tongxinyu] The pearl is dazzling and the bauhinia is beautiful - Chinese scientist Sun Dawen writes an article to celebrate the 25th anniversary of Hong Kong's return to the motherland.
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The "double reduction" policy proposes: reducing the burden of homework and off-campus training for students in the compulsory education stage, reducing the burden on students from both on-campus quality improvement and off-campus management, and focusing on the natural generatio
Smart teaching and research 1+1>2, truly “reducing the burden” for teachers
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On the same day, in the third window of the 2023 Men's Basketball World Cup qualifiers in Melbourne, Australia, the Chinese team defeated the Chinese Taipei team 97-56.
(Sports) Basketball - Men's Basketball World Cup Preliminaries: Chinese team defeated Chinese Taipei team (2)
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This season's CBA League will officially start in more than 100 days. The competition for the quarterfinals of this season's playoffs has actually begun now. Each club is using different methods to strengthen the strength of its team. However, Based on past experience, the playof
CBA Chinese Professional Basketball Association: I predict the quarterfinals of this season’s playoffs. It’s not a big problem to go north to Guangliao.
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The key points of the UK Epidemic and Current Affairs Day on April 28 are as follows: 1/4 of adults have received two doses of vaccine, and the UK is expected to complete the national vaccination target ahead of schedule. There have been zero new confirmed cases in England where
The vaccine is effective, and 40 million British people have been diagnosed with zero infections! COVID-19 death rate dropped by 97%
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The next peak in Japan may be in mid-February next year, and China must also prevent a new wave of infections in winter and spring. The number of people in Japan increased from nearly 28,000 per day in September to just over 200 on October 31. Why did the Delta virus suddenly and
The epidemic in Japan mysteriously subsided, is the Delta virus dying on its own? Experts reveal the truth behind
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But despite this, U.S. stocks still managed to halt a four-week losing streak. In the early hours of Friday morning, when news came that the Trumps were diagnosed with the new coronavirus, stock index futures fluctuated.
Trump was diagnosed with the new crown, and the U.S. stock index fluctuated, but still stopped falling for four consecutive weeks.
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