Science
Put the compressed spring into strong acid
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, which we can see as the energy stored in the spring as a whole system, so the question arises: if the compressed spring is put into a strong acid, then after the spring dissolves, where does the energy of the spring go?
By Apostolakis3 years ago in Earth
Is the sun suspended in the universe?
We often imagine the solar system as follows: the sun is at the center of the solar system without moving, while the eight planets and many other celestial bodies in the solar system are orbiting around the sun in an orderly manner, and the earth is also a member of it, which begs the question, is the sun suspended in the universe?
By Carlo Phil3 years ago in Earth
What exists in the vast space between the nucleus and the electron?
Atoms were once thought to be the basic particles of everything in the world, but it has since been discovered that atoms are composed of nuclei and electrons and that there is still a vast space between the nucleus and the electrons - just how vast? We may take the simplest atom in the universe - the hydrogen atom to illustrate.
By Baudamolova3 years ago in Earth
Peculiar crystals found in particles of the Chelyabinsk meteorite shattered by a UFO
There are a huge number of small objects in our solar system. They are very small in mass and usually fast in speed, and their orbits can easily become unstable due to the influence of other objects, so there are often some small objects crashing into the Earth.
By Deljewitzki3 years ago in Earth
Northeast Tiger: An Uncertain Future
On April 23, residents of Baishiwan Town, Mishan City, Heilongjiang Province, found a local northeastern tiger, which was initially determined by professionals to be "most likely a wild northeastern tiger". During the search process, a villager was bitten and taken to the hospital for treatment. At 21:00 that night, the tiger was shot by the police with a tranquilizer gun and has been sent to the Hengdaohezi Feline Breeding and Breeding Center in good health.
By Deena Thaddeus3 years ago in Earth
The release of 100 birds 132 years ago now costs the United States $800 million a year.
In the sky, the most spectacular performance of flying animals may be the "flock of starlings", in which hundreds of thousands of starlings form a group and fly together in the air like an ink painting.
By suzanne darlene3 years ago in Earth
The United States has launched 480 million copper needles into space, how is it now?
Before the 1960s, there were only two ways to establish long-distance communication: either by transmitting it through cables under the sea, or by bouncing radio signals through the ionosphere.
By adalberto alejandrina3 years ago in Earth
Two-headed snakes frequently appear in Yuhang, Hangzhou, is it really an ominous sign?
In the early morning of the day before yesterday, a resident of Yuhang, Hangzhou, was walking by the pond and found a "strange guy" - a "fish" with four legs. He caught the weird guy and kept it in a white storage tank. in the box.
By sondra mallen3 years ago in Earth
