จุดจบเอกภพ ตอนที่ 3 อวสานเชิงความร้อน (Heat Death)

Follow us on Facebook:   / curiositychannelth   Blockdit: https://www.blockdit.com/curiositycha... Tiktok:   / curiositychannelth   Personal Instagram:   / ekarajpkk   Contact for work: [email protected] Order Ophtus glasses at   / ophtus   Use the code SONGSAI to receive a 100 baht discount. The Curious Channel is running a campaign in collaboration with https://futureskill.co/, a platform for learning future skills such as programming, website design, video editing, content creation, data analytics, and more. 1. 1-Year Buffet Package - 50% off, from 9,948 baht to 4,974 baht Discount code: AFFXCC or click the link https://fskill.co/Aoag 2. Single Course Package - 100 baht discount for any single course. This is an additional discount from the already discounted price on the website. Discount Code: AFFXCC100 or click the link https://fskill.co/Aoal 3. Superclass Package - 100 baht discount from the already discounted price on the website. Discount Code: AFFXCC100 or click the link https://fskill.co/Aoam Wining Your Brand with Grit: Overcoming Obstacles in Brand Building "Bite and Don't Let Go" by Rawit Hanutsaha https://page.futureskill.co/winning-y... Discount Code: AFFXCC100 Friendly Gym Fitness Bang Phli   / friendlygymsmt9   ---------------------------------------- The universe has a beginning and an end. In this clip, we'll discuss the end of the universe, known as Heat Death or the Big Freeze, which is the most widely accepted end of the universe today. We believe our universe will likely follow this path. Actually, the previous clip on the boundary of the universe was originally intended to address the end of the universe, Heat Death. However, when discussing the expansion of the universe, it became too long, so it's better to split it into its own dedicated clip. If you haven't seen it yet, go back and watch it. This clip will only briefly discuss the expansion of the universe. In the 1920s, or about 100 years ago, Edwin Hubble discovered that galaxies are gradually receding from us. The farther a galaxy is from us, the faster it moves away from us. This led to the discovery that the universe is expanding. This revolutionized our understanding of the universe. Previously, most people, including Einstein, believed that the universe was static and unchanging. It had always been that way in the past and would always remain that way in the future. But now we know that this is not the case. The universe is expanding, and this is pushing galaxies further and further apart. Scientists are trying to figure out what natural phenomena or mechanisms are causing the universe to expand. To be honest, we still don't fully understand the mechanism. The most widely accepted hypothesis today is that spacetime contains some invisible energy, and this energy is what drives the universe to expand. We can't directly see or detect this energy. We can only indirectly detect its effects, and we call it dark energy. Every empty space in the universe contains dark energy. We now know that dark energy accounts for approximately 70% of all matter and energy in the universe. The amount of dark energy per space, or the density of dark energy, is important for the end of the universe. What will our universe look like? It depends on the energy itself. If in the future the density of dark energy decreases, the universe will expand more slowly. Eventually, the gravitational pull of matter and energy in the universe will overcome dark energy, and the universe will contract. The universe will collapse again, potentially forming a singularity, the end of the universe, according to the Big Crunch hypothesis. However, if the density of dark energy increases in the future, the universe will expand faster and faster. Eventually, this expansion can tear all matter apart, breaking it up into atoms that can no longer be held together. When the density of dark energy increases to a very high level, atoms will be separated into quarks and electrons. Everything in the universe will be separated down to the elementary particle level. No structure will remain in the universe, which would be the end of the universe, according to the Big Rip hypothesis. However, at present, from measurements of dark energy, scientists have found that the density of dark energy is likely to remain constant. Even as the volume of the universe increases, the amount of dark energy per unit area remains the same, and this is expected to continue unchanged. It could be a cosmological constant, the "constant" energy density that spreads uniformly throughout space, as in Einstein's equations. This means that the universe likely didn't end in a Big Crunch or Big Rip. It likely ended in something else, such as a heat death or a Big Freeze.