Views : 42,357
Genre: Science & Technology
Date of upload: Feb 27, 2024 ^^
Rating : 4.904 (38/1,553 LTDR)
RYD date created : 2024-05-11T22:27:05.530456Z
See in json
Top Comments of this video!! :3
I've always wondered why they weren't using lasers for high bandwidth comms. it was possible even at least ten years ago, now, it's ridiculously cheap because of the low cost of high power solid state lasers. Radio waves are not very directional, and thus heaps of energy is lost, but lasers ARE very directional and you can really crank up the bit rate and do it over multiple frequencies as well, it's a no brainer really, plus, because they are so directional, they are also much harder to intercept !. In fact, with time based crpto , they are probably 100 percent secure.
2 |
My question: how cold does it get in the shadows on the Moon on the sunlit side? Does it get as cold as the night side of the moon?
Also, love this channel! I've watched dozens of videos multiple times, especially if I listen to it to help me fall asleep (not out of boredom!). You just seem incredibly chill, passionate and knowledgeable, Fraser!
2 |
Escape velocity is always the orbital velocity times the square root of two. So of you can get the nuclear waste out to the Oort cloud, it's still cheaper to eject it out of the solar system than to have it fall back into the sun. Nuclear waste still has a lot of energy left in it so it's probably better to put it somewhere you can reach when it becomes economically viable to recycle it.
2 |
By far the simplest way to get the water from the regolith, is simply to heat it using the sun, it gets well over 100 degrees Celsius on the sunlight up there, so it's just a matter of using solar charged vehicles to transport crushed regolith to a solar furnace and then take the steam and run that into a turbine to produce even more energy, the cooled steam then has lost enough energy to condense out, and there you have water, power all in one.
1 |
@mhult5873
2 months ago
Thank you Fraser, again, for another great video - as always! Also thank you for taking the time to talk to me when I became a Patreon. The discussion we had was interesting and it was nice talking to you. I am impressed with the work you and the other staff are doing. I am really impressed actually. And it´s very interesting content. Thanks again! Take care. BR //M
13 |