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Kevin_Hall

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Everything posted by Kevin_Hall

  1. Here I have a simple example. Imagine that you have an unlimited access to money. You will have an exciting emotional life. Only for a year or two. You will lose all the courage to live, your motivation will equal 0. Have you ever thought why reach people do crazy things? The plain example is "Squid Game". People arranged the game because they are just bored of having lots of money - now they need entertainment That's why living forever has no purpose. When you realise that you have only 30-40 years, you WANT to live, you have aims, you have goals. I will attach one interesting video on this topic: The experiment is calles Unverse 25. It's the most famous experiment on rats
  2. I actually work only with projects, particularly onilne projects, therefore I have no links with certain schools. Thanks for asking!
  3. Welcome! Here you will find up to date astronomy news from all over the galaxy πŸŒ” For today's moment we have such interesting news: 1. Galaxy that has got no dark matter has been discovered. Astronomers from the Netherlands in cooperation with colleagues from other countries, have discovered that the galaxy that does not contain traces of dark matter. It's called AGC 114905. 2. Space tourism recovery On the December, 8 Japanese billionaire Yusaku Maezawa and Yozo Hirano are going to the ISS. They will fly to space on the Russian Soyuz spacecraft from Baikanur where the first person in space Yuri Gagarin was sent. Also it’s known that they are going to make a first ever made painting using brushes. 3. Mysterious cube has been detected on the far side of the moon Chinese rover Yutu 2 spotted a mysterious object on the horizon as it drove through the Von Karman crater on the opposite side of the moon. He noticed a cube-shaped object on the horizon to the north and about 80 meters away in November. 4. Mars on Israel Mars model becomes truth in Israel. It takes place at crater Ramon. Scientists are conducting simulations on Earth to better anticipate what could go wrong. They have made 200 researches in 20 days and now we are waiting for NASA to show us the results. Sources: https://arxiv.org/abs/2112.00017 https://spaceadventures.com/ms-20/ https://www.popsci.com/science/chinas-rover-mysterious-hut-on-moon/ https://www.businessinsider.com/mars-simulation-israel-desert-astronaut-research-2021-10
  4. Does anybody know if and how rockets polute the air?
  5. If you are going to live forever the value of life will be lost. Even the universe won't last forever, unfortunately. I was wondering what Elon Musk thinks of it: "I’m not actually a huge proponent of longevity," Musk replied. "I do think that having a good life for longer is better β€” we want to address things that can happen to you when you're old, like dementia, that's important β€” but I don't know, I definitely don't want to live forever." https://www.businessinsider.com/why-elon-musk-doesnt-want-to-live-forever-2015-10
  6. I'm about to create my first rocket, therefore I would like to know if someone has already made ones. Please, share your experience of creating rocket models here.
  7. In 1990 Voyager-1 took this picture. The most distant photo of our Earth we've ever made. Distance=6 billion km
  8. As I know singulatiry is considered to be the centre of a black hole. Though it's a little bit naive to present BH as a ball. It's actually a creature of a spacetime, but not space. Near the event horizon, time dilation becomes divergent. Again, to the outside observer, any process near the event horizon appears to slow to a halt. In fact, this is why the horizon remains forever in the future: if you could track an infalling particle, it would take forever, by your reckoning, for it to reach the event horizon. And if we suppose, that we are brave enough to enter a BH, the moment we cross the horizon it becomes a moment in the past. Not a apherical or surface, just a moment in time. And your future now means the singularity. But like the horizon, the singularity is also not a location in space. It is a future moment in time and actually, once you are past the horizon, you find yourself in a collapsing pocket universe.
  9. To begin with: why water is important generally on Earth: Almost all life on Earth uses a membrane that separates the body from the environment. To stay alive, the body takes on important materials to generate energy, filtering out toxic substances like waste. Due to this, water is essential because it remains liquid at earth temperatures. As it flows, it provides an efficient way of transferring substances from the cell to the cell's environment. It is much more difficult to release energy from a solid (although there are microbes that eat a stone. In addition to the fact that water can carry substances into and out of the cell, it is associated with a unique chemical configuration. The humble water molecule is made up of two hydrogen atoms bonded to an oxygen atom. Water's amazing dissolving properties make it ideal for transferring substances like phosphates or calcium ions into and out of the cell. Moreover, water can be more than a liquid that makes life easier - it can be the protective cradle that brought the building blocks of life to Earth. According to one of the theories of the origin of life on Earth, the theory of panspermia, ice comets crashed into the Earth, carrying tiny organic molecules that became the basis for life. But traveling through space is an ordeal, primarily because of the powerful levels of radiation that can destroy delicate organic molecules. However, water in its solid form can protect molecules from radiation. Despite the fact that water is important for life on Earth there may be life forms that do not live by the rules of earthlings. Among the main contenders are ammonia and methane. Ammonia, like water, is a polar molecule relatively common in the universe, but scientists have not yet found large bodies with ammonia in the solar system. Ammonia, like water, is a polar molecule relatively common in the universe, but scientists have not yet found large bodies with ammonia in the solar system. Methane is not polar, but it can dissolve many other substances. However, unlike water, methane becomes liquid only at very cold temperatures - at minus 182 degrees Celsius. We know that Titan has large lakes of liquid methane and ethane. Thus, a very interesting question is whether life can use liquid methane or ethane.
  10. When I saw your question I remembered a video that I had seen a long time ago. I'd like to share it. It assumes a wider understanding of your question but nevertheless it's intersting to watch
  11. In my mind Universe is just a circle. Do you guys remember the last episode of Interstellar, when they have finally survived? Every time you reach the end you reach its beginning.
  12. The best way of studying smth is teaching. Teach anyone, spread your knowledge, you can become a private tutor. Then you will have completed knowledge and you will be ready to find a teacher for yourself, moreover according to your teaching experience you will know exactly what knowledge you've got. And then you will finally find out: "I know that I know nothing" πŸ˜€. I have just described the similar situation that I had. To cut a long story short, teach someone and find the teacher for yourself. Hope this piece of advice will do you good
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