Real Engineering

Real Engineering

Interesting answers to simple questions.

Reacties

  1. Krishna Chitragar
    Krishna Chitragar
    15 uur geleden

    This is love❤️

  2. MrVipitis
    MrVipitis
    15 uur geleden

    How did this amazing engineering got done? Giant amount of money from the US government to it's own industrial military contractors that run giant lobbying fronts. If we can achieve this for killing people and dropping bombs, think about what we could achieve with a better intend.

  3. kamil potatoe
    kamil potatoe
    15 uur geleden

    Can someone explain easily possibility of Ion engines powered by nuclear reactor?

  4. David Hotckiss
    David Hotckiss
    15 uur geleden

    How do these engines compare to project Orion type propulsion?

  5. Bob Shepherd
    Bob Shepherd
    16 uur geleden

    Can we leave low earth orbit and return?

  6. Lord Canistra
    Lord Canistra
    16 uur geleden

    I can't believe you didn't mention Orion and nuclear salt-water rockets.

  7. Chris Davies
    Chris Davies
    16 uur geleden

    9:42 - an awesome model of the ISS, and its parts.

  8. ERG Loo
    ERG Loo
    16 uur geleden

    Note to self, never use skillshare

  9. Ima Stoner
    Ima Stoner
    16 uur geleden

    3:33 im pretty sure part of orbital science is the all orbits are elliptical, no exemptions. everything after 3:33 is bunk science as it refutes known orbital laws. so create new orbital mechanics or fly a rocket only two choices.

  10. DeQuine Reid
    DeQuine Reid
    16 uur geleden

    Me not knowing any thing he said: 👁👄👁 cool

  11. No u
    No u
    16 uur geleden

    IT IS THE NETHERLANDS NOT HOLLAND GGGRRRRR

  12. Kirill Chegrinko
    Kirill Chegrinko
    16 uur geleden

    I know there's like a 1000 comments, but I have a question. Why don't we just launch fuel tanks into outer space as payload? Create a fuel station in orbit. Launch the vehicle to mars in pieces, assemble in orbit, attach fuel, and roll on to mars? Is this a big deal? Does the velocity at launch from earth orbit such a gain that we can't use our own orbit as the starting line? What gives?

    1. Doodle Boi
      Doodle Boi
      16 uur geleden

      Well that makes it more expensive. Also not technologically advancing.

  13. Jonathan Odude
    Jonathan Odude
    16 uur geleden

    what are the current challenges behind building and/or testing a nuclear hybrid propulsion system right now?

    1. Jonathan Odude
      Jonathan Odude
      15 uur geleden

      @Doodle Boi then why reply?

    2. Doodle Boi
      Doodle Boi
      16 uur geleden

      I don't see any news about it , so I don't know.

  14. Zac
    Zac
    16 uur geleden

    11:39 thats sus

  15. Wilson Botlero
    Wilson Botlero
    16 uur geleden

    No one: Real Engineering: Murs

  16. PiDsMedia
    PiDsMedia
    16 uur geleden

    Hydrogen storage in space is easy, especially where you have a nuclear power supply available - store it as ice, then use the nuclear power station to liquefy and split the water to H2 and O2,.. the rest should be obvious.

  17. NE0MAS
    NE0MAS
    16 uur geleden

    Maers

  18. Angel Marin
    Angel Marin
    16 uur geleden

    It's the nuclear reactor hot enough to dissociate CH4 or NH3 into atomic hydrogen and subproducts and accelerate them in a safe way? That way you can store it in a denser and more stable form cutting down weight in the tanks and in the case of CH4 you can also use for chemical propulsion.

  19. Manos P.
    Manos P.
    16 uur geleden

    Do we have any news on the subject?!

  20. John Sullivan
    John Sullivan
    16 uur geleden

    Liquid air batteries would be good too.

  21. Julien CKJM
    Julien CKJM
    16 uur geleden

    02:32 Fun fact: there is no "the dark side of the moon", only the "far side of the moon"

    1. arteopteryx
      arteopteryx
      16 uur geleden

      its called the dark side, you dum dum

  22. MyEyesBled
    MyEyesBled
    16 uur geleden

    Only if you use Trump’s Over Abundance of Hot-Air as FUEL ⛽️

  23. anash ali
    anash ali
    16 uur geleden

    I like how he says mers

  24. downtofunkytown
    downtofunkytown
    16 uur geleden

    I do wonder if scaling the size of the ion engine would adversely affect the thrust output?

  25. Adam Dymke
    Adam Dymke
    16 uur geleden

    Pretty sure H2O and NH3 is less massive than N2, easier to liquify too. I guess it doesn't matter, the engineering problem is the same.

  26. Atharv Suryawanshi
    Atharv Suryawanshi
    16 uur geleden

    12:58 but we need to maximize momentum right, in that case, higher the molecular mass better? I am not sure i have this doubt.

  27. David Ladjani
    David Ladjani
    16 uur geleden

    Mers ?

    1. arteopteryx
      arteopteryx
      16 uur geleden

      hes irish

  28. Darcy Cornish
    Darcy Cornish
    16 uur geleden

    The speed of light is quantum insect

  29. Gary Donnison
    Gary Donnison
    17 uur geleden

    Whats this obsession with mars ? don`t you lot like our blue planet, mars is a dead planet

    1. arteopteryx
      arteopteryx
      16 uur geleden

      because it wont be long before our planet is blue and orange

  30. Leander de Gz
    Leander de Gz
    17 uur geleden

    "Uranus" whehehe.

  31. Burnt Reynolds
    Burnt Reynolds
    17 uur geleden

    I have a breakdown and mini stroke putting IKEA furniture together. They built this 60 years ago. ☹️

  32. Musk Reality
    Musk Reality
    17 uur geleden

    Antimatter propulsion also work well imagine combining positron particles in a liquid Sodium solution and then extracting energy by means of electrohydrodynamics

  33. Gilbert Paiz
    Gilbert Paiz
    17 uur geleden

    Man u have a cool Irish accent! Subscribed

  34. Musk Reality
    Musk Reality
    17 uur geleden

    There's a big difference between an Ion thruster and a Hall thruster, the former uses screen grids to speed up exhaust mass while the latter uses hall effect to speed up exhaust mass.

  35. Lawrence Cantar
    Lawrence Cantar
    17 uur geleden

    Are you Irish or somethin'?

  36. Musk Reality
    Musk Reality
    17 uur geleden

    The simplest and the most efficient way of space travel is utilizing Electrogravitics

  37. SURYA DATHAN
    SURYA DATHAN
    17 uur geleden

    As always the video is superb.... Can you make a video about Thorium Reactors

  38. Xmakes
    Xmakes
    17 uur geleden

    3 mil subs.

  39. Andy Breuhan
    Andy Breuhan
    17 uur geleden

    Hey @RealEngineering, 7:15 Exhaust Velocity IS Specific Impulse. These are exactly the same. Why do you divide that by gravity? That makes no sense.

  40. Zach Crawford
    Zach Crawford
    17 uur geleden

    Instead of using hydrogen, would it make more sense to use lithium? It's heavier but it is easier to ionise, is much easier to manage and doesn't need cryogenic temperatures. If the benefits of using hydrogen over lithium are significant enough, another option would be to use water as you containment system for the hydrogen and just electrically split the hydrogen from the water when you need to use it as propellent. This option has many advantages, before the water is split it is very stable and safe, it can be used as radiation shielding, it can be used as coolant for ship systems, it can be used to for life support and once in deep space could even be frozen and used as a building material for a ramming plate to protect against micrometeoroids that are in the ship's path. The "waste" oxygen could also be used for life support or even as propellent itself (even if it is somewhat less efficient than the hydrogen).

  41. Ben Coad
    Ben Coad
    17 uur geleden

    Looked like your using a solid fueled nuclear reactor, can you do one on a liquid fueled reactor like an MSR, it should work alot better at least in generating electricity

  42. c muller
    c muller
    17 uur geleden

    Sorry but "hydrogen" is not a gas... It's Dihydrogen H2... Rethink the molecular weight argument...

  43. Rey Carroll
    Rey Carroll
    17 uur geleden

    what about nuclear salt rockets

  44. Stardust Neo Shadow Vulcanus Nova Alteisen
    Stardust Neo Shadow Vulcanus Nova Alteisen
    17 uur geleden

    You say about Equator yet pointing at Atlantic Ocean of Bermuda Triangle.... that place isn't on Equator but on Middle Latitudes You should choose Brazil/South America or Africa instead

  45. musikSkool
    musikSkool
    17 uur geleden

    What about iron powder propulsion using powerful magnets?

    1. musikSkool
      musikSkool
      16 uur geleden

      @Destroyer 16 Well, superconductors supposedly have near infinite magnetism. So I was imagining that meant near infinite projectile speed.

    2. Destroyer 16
      Destroyer 16
      16 uur geleden

      That would be extremely Inefficent. Exhaust velocity of such an engine would be pathetic, even if a nuclear reactor is used to power the magnets. Altough it could look awesome. It would effectively be a coilgun.

  46. Chadx M
    Chadx M
    17 uur geleden

    to the expanse then...

  47. Tim H
    Tim H
    17 uur geleden

    I just ate some pot brownies and am pretty sure you can use chicken pot pies as an energy source to get to Mars

  48. Jose Luis Pérez
    Jose Luis Pérez
    17 uur geleden

    Make kerrs safe now!

  49. Commentator
    Commentator
    17 uur geleden

    What a bunch of crap. We are not species. If we are, what can we reproduce with ? Nothing. Species is a variation if a kind. We have no variation of us except races. Calling people species is racist.

  50. Justin Littell
    Justin Littell
    17 uur geleden

    16:16 Looks identical to the test cell at Moody AFB, though its got the wrong engine and decoration. Guess test cell facilities are identical across the airforce?

  51. Paresham Tewari
    Paresham Tewari
    17 uur geleden

    Can we build an orbital system on Mars that will catch the vehicles to deaccelerate them to the Martian orbit.

  52. G3tR34alz
    G3tR34alz
    17 uur geleden

    Without looking into it at all... Could one use the atmosphere of Mars to decelerate without landing? I'm imagining a REALLY close pass to scrub speed. Pass trough the atmosphere on a sharp tangent just to end up in orbit? Could that substantially reduce the fuel required to get to Mars?

    1. Doodle Boi
      Doodle Boi
      16 uur geleden

      @Paresham Tewari isn't that a reference?

    2. G3tR34alz
      G3tR34alz
      17 uur geleden

      @Paresham Tewari Something like that might improve the margin for error. Probably better for a crewed flight. Maybe too expensive for moving cargo?

    3. Paresham Tewari
      Paresham Tewari
      17 uur geleden

      Or build an orbital satellite system to catch the vehicles, the counter force form the vehicles will keep the orbital satellites in the Martian orbit without any excess fuel

  53. Zahari Burgess
    Zahari Burgess
    18 uur geleden

    the question is not if it can take us to mars the question is if it can take us to mars without the core melting

  54. 3rdWheel
    3rdWheel
    18 uur geleden

    Small nitpick - the Voyager probes aren't satellites, as they aren't orbiting anything.

  55. Thebeanman99
    Thebeanman99
    18 uur geleden

    Question, why not just use the coldness of space itself to cool the nuclear engines?

  56. Niels Andersen
    Niels Andersen
    18 uur geleden

    You can refrigerate the hydrogen using nuclear power and radiate the heat with radiator panels. You would need those anyway.

  57. Vincent Lee
    Vincent Lee
    18 uur geleden

    Watch as... they resume Nuclear bomb testing happens in space ...

  58. Thijs de Wit
    Thijs de Wit
    18 uur geleden

    In addition to enormously large radiators and solar panels, nuclear based propulsion also needs a lot of thick, dense material to isolate humans from the radiation

  59. Lars-asaurus
    Lars-asaurus
    18 uur geleden

    Hey Brian, I'm just a rocket engineer telling you that you did a fantastic job on this video. You explained everything perfectly and all of the benefits and drawbacks of each approach. You should be proud of this one!

  60. Ello ALT
    Ello ALT
    18 uur geleden

    Basically if u wanna stop the blitzkrieg.... Learn how to spam counter-attack lol

  61. Owen Gallo
    Owen Gallo
    18 uur geleden

    Hey we got this in kerbal already, whats going on?

  62. ᴡɪɴᴛᴇʀᴍᴜᴛᴇ _
    ᴡɪɴᴛᴇʀᴍᴜᴛᴇ _
    18 uur geleden

    Any colony on Mars will fail. Didn't you all see how people act when there's a toilet paper shortage?

  63. Jason D
    Jason D
    18 uur geleden

    Brilliant

  64. Umbrus
    Umbrus
    18 uur geleden

    Oh, I have the tiniest, most pedantic engineering notation complaint: Please, please use the little vector arrow over velocity. I don't know about rocket engineering stuff, but in chemical engineering capital V is used for volume (where V dot is volumetric flow rate).

  65. Mike S
    Mike S
    18 uur geleden

    Please show how approaching a planet can accelerate an object more than leaving the influence of the planet, due to the angles involved. That math would be fun to see.

  66. Mike S
    Mike S
    18 uur geleden

    Well done.

  67. dingdong
    dingdong
    18 uur geleden

    Why does the mass cancel out in 7:11? (mV + (pe-po)a)/mg is not (V + (pe-po)a)/G because (pe-po)a does not have a m. For example, (2 * 3 + 5)/(2 * 2) is not (3 + 5 )/2.

  68. Jericho gragasin
    Jericho gragasin
    18 uur geleden

    Say it again. "Mers". Great video btw.

  69. Tim
    Tim
    18 uur geleden

    My man even uses IEEE referencing beautiful.

  70. Doozy
    Doozy
    18 uur geleden

    They can tell us anything and expect us to believe them.

  71. Mike Brown
    Mike Brown
    18 uur geleden

    You Never fail to make me feel Dumb as Shit...yet I am always glad to see that you have posted!🤷🏻‍♂️👍🏻

  72. jeffgoblue
    jeffgoblue
    18 uur geleden

    He didn’t really touch on temperature much, but this is one area where you could argue that imperial units have an advantage, at least when it comes to weather. Yes, there is an elegance to having °C defined by the freezing and boiling points of water. But that 0°-100°C range doesn’t comport well with the range of temperatures humans experience. Let’s put it this way: 0°-100°F nicely describes a range of temperatures humans see regularly (really cold to really hot) much more intuitively that -18° to 38°C does.

  73. Hendreh1
    Hendreh1
    18 uur geleden

    Bad idea

  74. Nixon
    Nixon
    18 uur geleden

    Good Tube,‼️ (the voyagers are not satellites though )

  75. Critter
    Critter
    18 uur geleden

    And here I am trying to figure out why my wife left me

  76. HIFLY
    HIFLY
    18 uur geleden

    I think one of the better ways to travel is to basically make something like the ISS with engines. Just build the ship in space. Therefore, weight of the overall ship isnt as bad. You can get multiple rockets carrying fuel to it so we can have a combination of ion engines and chemical engines. Chemical starts and stops the ship while the ion engines keep us at the pace. It'd be expensive but everything is

  77. Jake Aurod
    Jake Aurod
    18 uur geleden

    Great video. Hybrid Nuclear Direct Transit Vehicles certainly have a place. However, I still think cyclers can be as important or more so. And before someone starts comparing delta-v of this or that teensy-weensy Mars Direct type of flimsymajig, know that I'm referring to a cycler station with a mass on the scale of an aircraft carrier, around 100,000 tons. It would have massive shielding, with one or two rotating cylinders for artigrav within the static shield and a primary pressure hull, and an electromagnetic catapult with a length measured in kilometers for launching taxis backwards for both station delta-v and for slowing the taxis down to orbital capture at the destination planet. Of course, the cycler station should also have a hybrid nuclear engine, like is mentioned in this video, for main power and other maneuvers.

  78. cfair009
    cfair009
    18 uur geleden

    Best video about nuclear propulsion I'v seen ,explains a few things very well for those willing to take the time understand all this, GREAT ONE GUYS ! Keep it going !

  79. Cepheid
    Cepheid
    18 uur geleden

    At the end, dimensional analysis is amazingly powerful. Every physics or engineering student should learn dimensional analysis. At the least, you can you can check if your answer in a hw or exam problem has an error. At most, it could lead to the discovery of new physics. If anyone wants a link to a good resource for new learners of dimensional analysis I can I can dig through my bookmarks and find it but honestly googling it should be easy to find, but I'm more than happy to help someone find a better resource.

  80. 一三Gnefitisis
    一三Gnefitisis
    18 uur geleden

    This channel really has come a long way. Wonderful video!