There is time for physics to be easy to learn and time to revisit our ancient emptiness and scientific vacuum
In physics there is the concept of a vacuum. A vacuum is the absence of matter in space. A container can be evacuated into a vacuum container. The universe is a vacuum in which various celestial bodies operate.
Why is the world's largest mushroom destroying the century-old giant tree in the United States like a "vampire"
1. Hundred-year-old trees die one after another Marhall National Forest Park is located in the Blue Mountains Mountains in eastern Regon. It is one of several well-known forest parks in the United States. Due to its early establishment and little human intervention, it still maintains its original natural ecology and beautiful scenery. Beauty and richness. However, since 1995, staff in the park have successively discovered that centuries-old trees have suddenly died.
The rich man who entered the cryogenic warehouse 54 years ago plans to be "resurrected" in 2017. How is the situation now?
Birth, old age, sickness and death are things that everyone needs to experience, but there are always some people who think that they have not enjoyed their life well, so they want to extend their lifespan through various methods. But if there is no disease or disaster, there is still hope. If you are terminally ill, or a disease that cannot be cured with the medical technology at that time, it will always make people feel hopeless.
"Spiritual Cage" Special Chapter 4: The four major human forces in the apocalypse, the lunar immigration is the biggest threat
The final chapter of "Spiritual Cage" is a link between the previous and the next. While telling us a complete story, it also partially shows the survivors on the ground, leaving enough doubts in the hearts of the audience. A huge, mysterious and full of The doomsday world of crisis is upon us!
Metal leaked from interstellar comet Borisov as it passed us in 2020
Gaseous nickel leaked from interstellar comet 2I/Borisov during its brief visit to our solar system two years ago, a new study shows. It sounds like weird behavior for comets, but as related research shows, the ejection of atomic metals may actually be a regular behavior of comets, both locally and across the galaxy.
The universe is constantly expanding. In what kind of space is it expanding? Inseparable from the universe is not fast enough
On the earth, most people may not care how big the universe is, because the size of the universe seems to have nothing to do with them, because for them, the earth is already big enough, and it is too big to walk in a lifetime. Finish. Even so, human beings still look up at the deep space under the guidance of their dreams, and this look is really surprising. The universe is too big. The earth where humans live is located in the solar system, and this star system with a radius of one light year is definitely an insurmountable space for today's human beings, although we can launch some spacecraft like "travelers", Let them fly aimlessly out of the solar system, but it definitely can't be regarded as leaving the solar system in the true sense.