Comments by "" (@12q8) on "Joe Scott" channel.

  1. "Here are the most horrific experiment in history with some spooky music in the bg." "Btw, sign up to Brilliant!"
    7
  2. Do you think if someone asked a question around Joe and he knows the answer of, that jingle at the start of the video plays before he gives an answer?
    4
  3. It was a slow process, and it is kinda like that in a lot of parts of the world.
    1
  4. Enhanced geothermal sounds like the best way. Better than telling all these workers to "learn to code." Lol.
    1
  5. We would literally take so long to exhaust the solar system resources. Anything right now can slow down progress.
    1
  6. I think if we manage to mine asteroids efficiently, things would get dramatically cheaper. It's like if gold was suddenly everywhere. We would be able to produce so much stuff for cheap because people can find gold anywhere and everywhere and gold would be inexpensive.
    1
  7. Is having mutiple launches to fuel a rocket in orbit more viable and cheaper than just strapping a massive fuel unit and thrust that son of a bitch to mars?
    1
  8. One thing you left out is that nuclear is nonrenewable. Similar to fossil fuels. I've read estimates where we only have enough uranium to power the world for a decade tops, but my memory could be faulty. Thorium is also an option, but also is nonrenewable. Enhanced geothermal seems like the way forward, but there is also a concern with increased occurrences of earthquakes. Solar homes are also one way to do solar while not using extra land.
    1
  9.  @factnotfiction5915  Uranium constitutes 1.8 ppm of the earth crust. That is roughly 100 trillion tonnes. Economically exploitable reserves are currently ~6 million tonnes. With improvements of technology that number will increase. The ocean alone contains a few billions tons of it. Seawater extraction of uranium is already done, but it is not cost competitive yet. Other abundant, but not yet exploited resources are uranium bearing phosphate rocks. As for now uranium is almost exclusively sourced from pitchblende. 0.7% of uranium is fissile uranium-235. That’s the isotope that is used in nuclear power plants (usually in the form of uranium dioxide, where the U-235 has been enriched to a few %). 0.7% of 6 million tonnes is ~40,000 tonnes. One tonne of uranium-235 yields ~80,000 trillion J (80,000 TJ) of thermal energy. So we have 3,6 billion TJ contained in currently known reserves. Assuming 30% overall efficiency that is ~1 billion TJ. We use 600 million TJ energy every year, one quarter of which is for power production, one tenth of which is generated by nuclear power plants. That would be 15 million TJ per year. So my estimate is that known pitchblende reserves alone can supply nuclear energy for another 70 years. Keep in mind energy demand increases, and even if all the uranium is accessible, we will need more to power the entire earth.
    1
  10. >Why Nature Is The Ultimate Innovator? Simply put, nature has been around for billions of years evolving, while modern humans for maybe a couple hundred thousands.
    1
  11. Sounds kinda relaxing, ngl. No blood pumping, will feel light and weird.
    1
  12. Oh yeah! You forgot biomass energy production which is also very efficient and renewable. Not sure how clean it is though.
    1
  13.  @bramvanduijn8086  The cycle is there though. You need to plant more to make more power in the future and probably food too. The system is better because we are not burning carbon deposits, i.e. fossil fuel, but just part of the cycle that captures and rereleases the carbon. Also, some methods of biomass power is done via fermenting to extract ethanol, which makes it as clean as natural gas without tapping into carbon deposits.
    1