Comments by "David Elliott" (@davidelliott5843) on "Tech Chasm" channel.

  1. Jeff- I have a rocket shaped like a big willie. I am going to sue you for laughing.
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  2. Molten salt nuclear is a better option than thermal nuclear one because we don’t have enough of the correct plutonium isotope and two because the molten salt reactor efficiently used a few very little waste it is very lightweight .Kirk Sorasen of Flibe Energy looked into this 20 years ago came to the conclusion that MSRs do the best job.
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  3. We have a choice. (a) Cell towers everywhere, complete with cable trenches to power and connect them. The damage and wasted resources connecting wilderness areas is mind boggling. (b) Amateur astronomy is affected by satellite launches and (to a lesser extent) the satellites. SpaceX already has a huge lead in numbers and technology. It’s highly likely their competition will collapse. Frankly I’d rather have an Elon monopoly than a Jeff monopoly.
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  4. Mars atmosphere is far too thin to have any effect on cosmic radiation. Terraforming a new atmosphere won’t work because the necessary gasses have been stripped away. Even worse, there is nothing locked in the rocks as Earth does (carbonates etc) so you can’t even mine an atmosphere.
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  5. Why would anyone trust France after their behaviour over the cancelled diesel submarines contract.
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  6. Neutrons are very harmful. However the people of Ramsar Iran have an annual radiation dose of 240 mSv. The current occupational maximum dose is 20 mSv. The people of Ramsar have no additional health problems and might suffer less cancer that less exposed people.
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  7. The same level of official interference will be used to crimp self driving cars.
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  8. The big problems with fusion power are (1) tritium is extremely hard to extract. (2) nobody has created a reactor that works. (3) when they do it will need precision engineering and highly skilled operators. Around 2005, Kirk Sorensen rediscovered the molten salt nuclear reactor when he was tasked by NASA to find a moon base power source. Mars and moon has considerable thorium resources which work well in liquid fuel nuclear. It does not work well in solid fuels as used in today’s PWR reactors. The main advantages are simple design, light weight plant, no internal pressure, self stabilising reaction, and complete fuel burn up. An interesting fact about some types of molten salt reactor is tritium. On Earth it’s a problem. On Mars it could be vented as it would float away into space. If fusion is ever achieved, they’ll have a supply of fuel.
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  9. Lucid does not have a car. They don't even have a factory. They also don't have any electronics (Google Android entertainment systems do not cut it. The car they have planned has less performance than Elon's current top spec Model S but costs double and will not be available for two years. By then Elon will be even further ahead.
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  10. The “us and them crap” will continue until CCP corruption is reigned in. Mars is toxic, bathed in radiation and it’s low gravity will destroy people’s bones. The soils are highly abrasive and toxic. Martian soils contain 0.5 to 1 percent perchlorate. It could be an important source of oxygen, but it’s toxic. The guy in the film would have been poisoned by his potatoes. They would all be permanently damaged by their long periods of zero and low gravity.
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  11. I live in an area with bedrock of hard granite or soft crumbly sandstone and steep hills with narrow valleys. The hills would be a struggle for an above ground tube. The tunnels would need some seriously badass boring machines and structural linings. I don’t understand how it can be viable.
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  12.  @antonyborlase3965  It’s quickly de orbited probably done within a few days.
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  13.  @durshurrikun150  Sublimation causes ice cubes to “dry out” in a -18 freezer. That happens much faster in near vacuum conditions. To exist at all, Martian water ice has to be MUCH colder and harder than most rocks. It also has to be protected deep below the surface. Mining that is not a trivial task.
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  14. Companies that fall into the litany of errors shown here will never recover. If they ever had it, the vital spark has gone.
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  15. If China gets to Mars (without killing the crew) the crew will be fried by radiation. But no worries they will die by accident on the way home. Oops.
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  16. SpaceX publish too many videos showing he details of their equipment. But at least it doesn’t look like a huge knob like Blue Origin.
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  17. Mars is not (and probably never will b) habitable for humans. Underground habitats will protect from cosmic rays and radiation. Surface facilities will struggle with the toxic and highly abrasive regolith. Tunnels may be the best option. The extracted material can be used to reinforce the entrance ports.
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  18. What is the point of Starliner? Its cost a fortune still doesn’t work and offer nothing the SpaceX does for a fraction of the cost.
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  19. The Bezos moon lander is completely unsuitable. (1) It throws up huge amounts of dust which take ages to settle. The dust is extremely abrasive. (2) It discards the landing module leaving junk on the lunar surface. (3) the long ladder is dangerous on earth. On the moon, wearing a pressure suit it’s a death trap.
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  20. The Bezos moon Lander is an updated Apollo craft. It’s extremely wasteful leaving the moon littered with junk.
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  21. Plus one for the applause.
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  22. The Bezos lander is an upgraded Apollo spacecraft. Downright dangerous to exit on the Moon and ridiculously wasteful when it leaves the empty descent stage on the surface.
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  23. Moltex have a molten salt where filuel salt is held in rods. Coolant salt is a pool within in the reactor containment. Heat is extracted by a third salt which goes to provide process heat. The reactor is kept oxygen-free so there is no corrosion. Under these conditions, the chloride salts are less corrosive than hot high pressure water used in traditional reactors. Elysium have an alternative design which circulates the fuel salt around heat exchangers. Both can use fuels with uranium, plutonium or thorium. They can even take depleted uranium and irradiated used nuclear fuel.
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  24.  @walterlyzohub8112  NASA looks politically inept. The recent contract awards to SpaceX should have been legally watertight. Even the most expensive private layers could have avoided the problem at a fraction of the money the legal disputes are now costing.
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  25. Elon moving fast towards solar power with battery back-up that undercuts fossil fuels on cost and releases no CO2. Big Auto and Big Energy are scared because he’s eating their lunch. He is also shooting down The Left’s arguments that everyone must drink their Kool-Aid or the planet will burn to a crisp. This unholy alliance is ganging up against Tesla.
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  26. NASA has spent Billions on disposable rocket junk from the usual suspects but still have no heavy launch vehicles and their crew module is downright dangerous. Left to their own devices, the NASA / Big Aerospace cabal will not get to the moon by 2040.
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