Comments by "Zach B" (@zachb1706) on "Real Engineering" channel.

  1. Well he hasn’t woken up in along time then
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  2. 0:35 That doesn’t take into account how much each source is used. Sure, overall fossil fuels might get more subsidies- but per MWH?
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  3. Thank you
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  4. But this weight is out shadowed by the battery
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  5. Yes I think that’s where electricity belongs, short distance trips
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  6. That’s shit
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  7.  @yassassin6425 not even worth it, these dickheads are on every space video
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  8. We are doing better in space than ever before. The Space Shuttle was in reality a failure. It was meant to be incredibly cheap because of its reusability but in reality it was far more expensive than conventional expendable rockets at the time. It was meant to have a quick 2 week turnaround time, NASA envisioned Space Shuttles taking off and landing every week. But it never got close, and after the Challenger disaster the turn around time was extended to almost 3 months. And it had many terrible safety flaws. The solid rocket engines had no way of being shut off, there was no Launch Abort System to get astronauts to safety in the case of something going wrong, and the rocket required a crew to be flown. Falcon 9 has truly surpassed the Space Shuttle in all these aspects. While it isn’t as flashy, it’s a great step forward.
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  9. Probably not.
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  10.  @weekiely1233  no doubt he had a better opportunity than most people. But you don’t make $200 billion and found multiple massively successful businesses from chance. Otherwise everyone who grows up in an upper class family would be worth $200 billion.
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  11. juster2432 hydrogen will not go far because of one reason - it is one of the most reactive elements on earth, and with the energy it holds, it’s like having a hydrogen bomb as a fuel tank.
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  12. Also you realise that this isn’t the only model of Starship, right? This one is specifically designed for StarLink so they can launch their new v2 satellites, which will be the main thing they launch early on. They will have multiple models, probably with a larger payload opening or like HLS with legs and a lift to lower astronauts.
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  13. Do you know that graphene costs the same as gold? Graphene is a slow and expensive material to manufacture.
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  14. Jonathan Brochu it’s not as easy as you make it sound. They are cutting graphite into atom thick pieces.
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  15. But losing so much in time and load size
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  16. You say that because you’re used to it. I couldn’t dream of device for anything by 6 or 12, it just isn’t as compatible with our current counting system. Plus imperial isn’t strictly base 12, it feels more like a random dump of bases. 12 inches to a foot, 3 feet to a yard, 1760 yards to a mile, ect. Then there’s chains, and so on.
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  17. That is space, also just below LEO
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  18. Military equipment is much more expensive today. A WW2 plane when adjusted for inflation would cost just over half a million compared to the cost of a F-35A which is $78 million. It's quality over quantity.
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  19. They literally landed something on the moon a month ago
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  20. Bin
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  21. Jk, idk
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  22. Explain more.
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  23. Meras Nzambemana 1, that would be dangerous. Imagine having electricity literally flying around you where ever you were. 2 that would be expensive
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  24. NASA uses Metric. Really America should just start converting by now, it’s a far simpler system.
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  25. SLS is behind schedule as well. Artemis 2 was meant to launch this year, they’ve pushed it back to next year but it’s questionable if that’s even possible. Really I think SpaceX will have plenty of time to get HLS ready, 2026 might not be it though
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  26. Well they put the man on the moon, built the biggest space station to date, has landed many rovers on mars, the list goes on. NASA has done so much good for the world.
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  27. One of the most reliable rockets, though its failures were tragic. Falcon 9 is much better
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  28. Are you part of the trucking community? I know that to be false, at least in Australia
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  29. You realise James Webb is further away from us than the moon, right? The Space Shuttle has no way of getting there.
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  30. What use would robots have for us?
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  31. It does. We are recording higher increases in CO2 levels in the last 300 years than ever before. This is not natural. But electric trucks... come on. I think nuclear or renewable energy is the future, but that does not mean fossil fuels have no purpose
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  32. It’s not.
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  33. does Aluminium scare you?
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  34. Then it’s expensive or weak. And couldn’t you do the same to fuel trucks?
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  35. Rubber
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  36. He explained, also wieght
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  37. Like...
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  38. It was just a fluke that all his companies have been massive successes and have each changed their respective industries…
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  39. Also do some research. StarLink satellites fly low to the Earth so will fall in months if they shut down or are destroyed
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  40. juster2432 there hasn’t been a full hydrogen car yet. But if there is I won’t be buying it.
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  41. Austin George bio diesel unfortunately has the same issues as lithium-ion batteries- it’s not as energy dense. Also it degrades over time, meaning long storage is not an option.
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  42. It can also damage your engine, and is around 1.5x more expensive to fill. It is not that bad, just not the best. And it releases carbon.
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  43. Carnots principal?
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  44. WHATTT??? Do you know how hard syncing 4 engines is?
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  45. Or planting trees
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  46.  @wouldntyouliketoknow9891 so get rid of everything that made SpaceX successful and switch to the NASA way that leads to massive delays and budget overruns. Genius
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  47. Not really, a nuclear reactor can last decades and doesn’t take the wear and tear of the wheels
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  48. They purposely didn’t for safety reasons… it was just barely suborbital in the test
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  49. The sr72 might make that pick easy
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  50. I was wondering how they got a nuclear reactor on board without melting the whole tging
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  51. Why go to all that effort when you will get a better output on the Diesel engine alone.
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  52. He’s making a hype train for something he could possibly not deliver. Of course he’s happy to be wrong, it’s all money anyway from the large backing
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  53. If renewable energy was cheaper, the free market would use it over fossil fuels without missing a beat. Bigger profit margins AND you can put a shiny eco friendly sticker on your company! Which is why your claim is bullshit, because companies aren’t using renewables. And because companies aren’t using renewables, the government has to subsidise them.
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  54.  @joshmerchant8737  it does, but it’s also far more common. If you account for the amount of electricity generated by each method, you would see that fossil fuels get less subsidies. I don’t like subsidies altogether, no matter the reason.
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  55. Niceicejimmy55 yes
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  56. Garret not really. When eyeballing it’s fine, but measurements are supposed to be accurate. That why a simple and versatile base-10 system works, on any scale. Actually it’s so good it’s even the basis of the imperial system.
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  57. Garret it’s easy to decide by a third, and it’s as accurate as using imperial. Just measure 333 mm. It’s as accurate as say 4 inches to a foot because as humans we aren’t 100% accurate to begin with
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  58. Garret you are never going to need it more accurate than mm, and if you do, a computer is way more accurate than us
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  59. Weight, energy efficiency, what if it falls over? Ect
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  60.  @weekiely1233  it didn’t reach Orbital speeds (on purpose).
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  61.  @weekiely1233  was that IFT2 or 3? I thought 3 was meant to run below orbital speeds and lower than LEO. Doesn’t matter though, the rocket can definitely reach orbit. Hopefully IFT4 they can sort out the reentry of the booster and ship
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  62. Coal is the most reliable energy source. Although first systems made use of water to get power, coal just was so much cheaper, and more reliable.
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  63. Not much really, definitely if they’re shipping huge amounts of trucks
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  64. Lol blaming Elon for California not having high speed rail. No, blame the California state government and Congress.
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  65. Chevy Taripe hydrogen is both extremely dangerous, and very inefficient. You lose more energy than you get from making hydrogen
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  66. No it’s not that easy, also that’s a lot of work.
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  67. And wireless charging loses a lot of energy to heat
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  68. But they are not you see. His Hyperloop: stupid idea, big hype
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  69. The longest tank on tank kill is 4.7 kilometres. Imagine sitting in a tank, and out of nowhere a shell decimated it from over 4 kilometres away
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  70. Yes and no. You fail to put into account the trees we clear which stop production of oxygen. Plus 1 eruption is nowhere near all the pollution, we have been mad polluting for over 300 years
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  71. Citation needed.
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  72. Starship has its own launchpad.
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  73. No because they orbit at such a low altitude if they lost power or were destroyed they’d return to the earth within a few months The real danger are the satellites high up that will be there essentially forever. But they still aren’t much of a danger, and by the time they might be we will have technology to mitigate it. Importantly no model predicts it will never trap us on Earth. We will still be able to fly to the moon or mars, its danger is that it will prevent us from putting things into orbit
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  74. Where’s the 10-20% coming from? Citation please
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  75. No there was no way to turn them off and no way to abort. That’s one of the reasons the Challenger crew died
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  76. I don’t like that idea. So many jobs are built by trucking, unemployment - definitely for Australia - will skyrocket.
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  77. And is it safe to have self driving trucks? They weigh a lot more so can’t brake or turn quickly, and I’ve seen many lives saved to good truck drivers. Is risking a lawsuit good enough to save on this expense?
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  78. Zen CaptureAll I’m just saying that there are guidelines, and I doubt they will be passed in a while.
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  79. Are you French?
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  80. It’s common in English to use words like “insane” or “ridiculous” to mean the opposite of their literal meanings
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  81. The benefits would be science. There would be so much to learn from a permanent colony on Mars.
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  82. “The best” well they’re building flawed electric trucks, I don’t see how they’re the best
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  83. I guess
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  84.  @pizzaman5169  you can't win wars on morale. You need morale and up to date firepower. The A-10 is outdated, and the only reason it hasn't been outclassed is the wars the US has fight recently were against a force far weaker
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  85. Or better yet, uranium. Isn’t it about 2x more energy dence?
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  86. GlanderBrondurg imperial is used by one country, time to move on
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  87. But it’s not cheap to drop a railway everywhere, there’s a reason people drive long distances in trucks
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  88. I know, but I’m saying that it’s not cost effective to put trains everywhere.
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  89. Imagine being so sick to your head you think it's funny for someone to die because they're rich.
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  90. 💥 Booooom! 💥
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  91. Asachana road and bridge strength and road safety
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  92. His information is top notch, he goes into the laws of thermodynamics and many scientific papers to find his results.
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  93. How old are you? Or are you just really stupid?
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