Comments by "GH1618" (@GH-oi2jf) on "The Truth About Electric Cars Biggest Problem" video.

  1. Alex monje — It’s pretty much the same in S.I., just different constants. Work (energy) is force times distance in any system of units.
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  2. DaDa啊達啦 — No, the United States does not use Imperial units. We use (largely) U.S. Customary units, but also use metric in many situations. Americans are practical and we believe in liberty. We are free to use whichever system of units fits our application best.
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  3. Ÿamada — Americans believe in liberty. We are free to use whatever units serve our purpose. Arrogance has nothing to do with it.
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  4. Braŭljo — There is no bigger bore in technology than someone who is always whinging about units.
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  5. Dommy521 — It’s been done.
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  6. Uachtar — Wrightspeed diesel-turbine/electric hybrid.
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  7. Jose Flores — GM had a nice one — the Chevy Volt. It looked pretty much like a normal car, especially the 2nd generation. Then they dropped it just when they had it perfected. Idiots.
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  8. consummateVssss — Not only scientists. There are many uses of S.I. units in the United States. But that does not imply that everything must be converted. We use whatever suits our purpose, generally. Coercion is a European thing. Americans do not like coercion, particularly when it is arbitrary.
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  9. saddlebag — True, but there are many components to be considered. The bottom line is what matters. A Model S weighs almost 5000 lbs and that is heavy.
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  10. Noorquacker — Americans, and especially American engineers, are practical people. We can do whatever works without getting hung up on unimportant details.
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  11. Joe Devlin — It is just the constant to convert work (energy) in pound-miles to kWatt-hours. Usualy, work is given in pound-feet, so you look up the constsnt for that conversion and multiply by 5280 feet/mile.
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  12. Benjamin — It has been done for trucks (Wrightspeed) but it isn’t economical in every application.
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  13. mbsnyderc — Sure, but trains can’t go everywhere.
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  14. Michael Patrick — Wrightspeed technology. Except that Ian Wright has said that the economics don’t work yet for long-haul trucks.
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  15. Simon O — Exactly.
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  16. ash4200 — Cost of right-of-way. We have freight trains, but we still need a lot of trucks because they can go everywhere.
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  17. Weston Charm — The early interest is from companies that have predictable loads and routes, not from general freight haulers. If a company operates a truck on a fixed route with a known range of loads, then they can calculate whether it will work for them and they can arrange to have charging facilities where they are needed.
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  18. npoeeva01 — That’s just a constant to convert pounds of force times distance in miles to kilowatt-hours. You just take the constant for KWH per pound-foot and multiply it by 5280 feet per mile.
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  19. Terry Fojas — There are a few parts that go along with the motor.
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  20. Flat6 Targa — Wrightspeed has a better solution. They make diesel turbine-electric powertrains for garbage trucks.
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  21. Sayed Khalid M Fareedi — Car and tire companies have been doing that for decades.
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  22. joseph rose — Google is not a source of information, just a search engine which connects you to sources of information.
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  23. Madaz Jack — You can’t pump gasoline without electric power.
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  24. Darren Johnstone — His presentations are really about how to calculate things rather than trying to prove something.
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  25. Daniel Richards — Watts are commonly used in the United States. Horsepower is still used for a few things, but Americans are not bothered by having multiple systems of units. We use whatever is convenient for the purpose.
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  26. JulienB — But the transistor wasn’t invented until 1947. Modern electric vehicles use a lot of semiconductors that took decades to invent after the initial invention. There were electric cars before semiconductors, but they couldn’t compete with gasoline-powered cars of the era.
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  27. Andy — There are several questions like this which can only be answered when there are a significant number of old all-electric cars around.
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  28. Ghassan Radwan — You just don’t want to listen to anything that isn’t uncritical praise of electric vehicles. You should just listen to Elon Musk publicity events.
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  29. H. Kurnia — The Chevy Volt was a good one, but GM killed it just when they were getting it right.
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  30. Matteo Tortello — Go outside and count the cars driving by, by type: ice, hybrid, all-electric. Even in California, whete there are a lot of Teslas around, ICE vehicles predominate by a large amount.
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  31. Benjamin Cronce — A Wrightspeed turbine would work better, but Ian Wright has said that heavy trucks are not where the savings are greatest.
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  32. bens_gone_nomad — According to Ian Wright, long-hail diesel trucks are so efficient that the payback period for the hybrid system is too long.
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  33. Michael Sengers — Sure it will work, but how practical it will be remains to be seen. It may be practical in some applications and not in others. What Jason is doing here is discussing the factors that will determine whether it is practical or not.
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  34. Mike Luisa — Most locomotives are hybrid diesel-electric.
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  35. Energyswe — The catch there is that very often the trucker provids the tractor and the customer provides the trailer. Also very often the trailer carries a freight module which can be stacked.
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  36. RacingfortheSon — Wrightspeed does that. Initially, they were doing garbage trucks, because they have the greatest potential for savings. I haven’t read any recent news about them, though. I wonder what’s going on with them.
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  37. Sander Gjertsen Østvold — True, but at that point in the discussion the difference is irrelevant.
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  38. eliya sne — Electric motors may be lighter than most gasoline engines, but they can be pretty heavy also. An aluminum block four-cylinder gasoline engine is not especially heavy. There is a wide range to consider and you also have the weight of a transmission to consider.
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  39. Daslynnter — Many trucks do have an attachment on top of the cab to improve aerodynamics. Newer tractors also have more aerodynamic shapes. The problems with trying to close the space between the tractor and the trailer are that it could interfere with making tight turns and it would be a nuisance when picking up and dropping trailers.
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  40. deepfriedsammich — At least Tesla is.
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  41. Marcin Krysinski — Half the energy input to a refinery comes from the petroleum. Some of the additional energy input comes from natural gas, where available, so it isn’t just electricity.
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  42. Macko — They are US Customary units, not Imperial.
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  43. Macko — Take 10 grains of aspirin for your headache.
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  44. bombcat91 — I don’t see why you would think standardization of the definitions of the US Customary System is “ridiculous.” I’m in favor of standards and it is convenient to have one document in which one can find all of the equivalences defined.
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  45. coscorrodrift — Unusual, but why amazing? It’s force times distance
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  46. dpactootle — He is not lying, he is just discussing one aspect of the problem and skipping other aspects for the time being. There is no call for such a rude accusation.
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  47. TT — The slug isn’t used much. I don’t think I’ve ever seen it used before. He probably looked up a formula and that’s how it was given. It isn’t that Jason is deliberately trying to avoid metric units, because he does have a kg here and there, he’s just working with what he has and has no particular reason to indulge USCS-phobes. This is just my guess.
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  48. Lars Harmsen — Variation is normal. That’s why we call a bell-shaped curve “the normal distribution.”
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  49. Philippe Bleau — No imperial units here. They are U. S. Customary units. And the calculations are the same regardless of choice of units.
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  50. Chuck Dawson He didn’t forget. This video isn’t about air pollution. But internal combustion engines are much cleaner than they were 20 years ago. Suppose that cleaner air were so important that we decided to scrap every ICE car and pickup, regardless of age and condition, and replace them with all-electric vehicles as soon as possible. How do you think that would work out? It taks energy to build cars and to scrap them.
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  51. carl elg — Maybe when similar European sites start giving USCS equivalents.
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  52. To. Da.M00n47 — Because Tesla buyers are cultists. They were buying Teslas before they were even released.
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  53. Gabriel Bonilla — I’m sure he knows all about that, but it isn’t the subject of the video.
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  54. Da Os — Sure, but that’s what EE is about. He doesn’t have to talk about everything.
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  55. TheBrookmeister — GM built a hydrogen fuel cell (experimental) vehicle for the US Army based on the Chevy Colorado. Hydrogen might work for the Army because they can handle the logistics problem and because price is no object.
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  56. Mark Hawkins — Hard to do because electric cars are too new.
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  57. Robert Balu — Why not a diesel turbine (see Wrightspeed)?
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  58. Gaita Ponto — It’s just flavored carbonated water.
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  59. Andy B — They will be used in applications for which the economics pencil out.
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  60. Kim Ravn Hansen — For an all-electric car there is a substantial amount of redesign required, so I don’t think a conversion is practical. It is more useful to compare two cars with comparable range and passenger capacity.
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  61. BlueTrepidation — Truckers complain about DEF, but they need to get with it. The United States is not going to go backward on emission controls. DEF works and does something worth doing, controlling NOx.
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  62. CharlesDrafter11 — Two reasons: 1. Tractors and trailers often belong to different owners. 2. Many trailers carry modular containers. 3. Weather and cost. It makes economic sense only when tractors and trailers stay together and are operated in an area with plenty of sunlight.
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  63. Gullepomp — That doesn’t follow. Engineering is what it is regardless of units. What did the ancient Roman builders use? Were they engineers?
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  64. Alessandro Zamboni — Is it his fault the rest of the world is monometral?
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  65. moorechez67 — What we don’t know yet is how the life-cycle costs pencil out. Two years is nothing.
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  66. Steven Aziz — Turbines are more efficient than reciprocating engines when they are operated at optimal speed and used to run a generator.
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  67. David James — A train operates on a railbed designed to carry the weight. Highways are designed for a maximum axle weight. You can’t make trucks arbitrarily heavier. The heaviest trucks have more axles, but there are practical lmits for a truck which you will drive on xisting roadways.
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  68. Stéphane Smith — I’m pretty sure you can count the number of times you recharge before replacing the battery. The car may actually keep track of that.
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  69. CharlesDrafter11 — See Wrightspeed.
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  70. L3xou97 — Excellent idea! Put the Tesla on a trailer and tow it with a pickup to where you will drive it. Think of it as a range extender.
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  71. Jamie G — Four inches lower would put it at about the table top height, so you couldn’t push the table against the wall. The conduit is also in the way, but not so much.
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  72. Braŭljo — You may do whatever you like in that regard.
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  73. Panos Ntak — He’s using U. S. Customary units.
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  74. A small additional term is that liquid fuel weight goes down as you drive. Battery weight does not.
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  75. Andy Lee Robinson — The problem there is the resistance to nuclear-powered generating plants. A lot of electricity is still produced by burning fossil fuels.
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  76. Najam Afsar — It doesn’t need a video. Just slow down.
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  77. Thales Freitas — The point is the volume in the car at one time. The volume of fuel which has been consumd in previous fillings is of no importance.
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  78. chuckmetro — For commercial trucks the economics can be quite varied and there are a number of factors. It will get sorted out. Commercial truck buyers won’t get something just because it’s cool.
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  79. Jean-Pierre White — Wrightspeed diesel-electric powertrains have 40% the emissions of conventional diesel power, without needing complex emission control systems.
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