Comments by "Dr Gamma D" (@DrDeuteron) on "Driver61" channel.

  1. no EV has a battery big enough to finish the race, unless the race is running to whole foods to get more kale chips.
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  2. ...or this is a design that flopped terribly. A disinformation gearbox.
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  3. Yes, as I kid, I idolized it in my paperback Guinness šŸ“•.
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  4. Waitā€¦Iā€™m confused.. going v on a wheel of radius rā€¦ dimensional analysis says the only force (per unit mass)you can make is v^2/r (plus a multiple of gā€¦but lets ignore that)ā€¦.so smaller r is bad?
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  5. Thrust/pounds times speed/mphā€¦.divided by 375=165khp.
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  6. The fact that F1 cars don't bank saves a lot of money in the sim. I mean SIMming Talladega would be rough.
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  7. power is force times velocity. force is drag. drag is proportional to velocity. power goes as velocity squared. but even with "zero" drag (no friction, no turbulence) , you still have to move the air out of the way of the car, which requires giving the air a kinetic energy of 1/2 m v^2 (we do remember that one, right). where m is the density of the air (1.2 kg/m^3, irrc) times the volume V, where V is crossectional area A of the car times the length it travels per unit time (aka: velocity v), so now you got an energy going as velocity cubed. or something like that.
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  8. Ā @connor1586Ā power can be measured in stone per gee times speed of light squared per Fortnite.
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  9. Rails are the best. See Holman test track.
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  10. it should be called "torque pseudo-vectoring". or "torque-axial-vectoring"/ Anyone who thinks torque (or angular momentum, or angular velocity) is a regular vector needs to drive this car in mirror universe.
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  11. Two throttles , lifts one?
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  12. 12:48 the steering "wheel" display is not public info. So how do the teams handle confidential info? Are there different proprietary levels? Is it compartmentalized need-to-know (e.g. our gear-box expert doesn't know any details about the fuel system and likewise for the aero ppl)? Are there special access developments that some key team members (in different areas, duh) aren't even aware of? What kind of background investigation do you need to pass to get on an F1 team?
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  13. 14:29 this two length scale roughnessā€¦.hard to understand. This is why the power spectral density was invented.
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  14. 1,000 feet, no longer a quarter.
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  15. Digit count too low.
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  16. this was too much too fast, and I got an A in Feynman's graduate quantum chromodynamics course.
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  17. You get quite the Eotvos effect at 1000mphā€¦may handle differently going east vs west.
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  18. I read that as hyper gothic.šŸ˜‚
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  19. What?
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  20. Around 18:00, you say the wheels have a 10,000 RPM limit before centrifugal force rips them to pieces, and then you show the drivers ā€œRollCageā€ā€¦.for a car going 1000mphā€¦..šŸ¤”šŸ¤”šŸ¤”šŸ¤”šŸ¤”driver goes in the cage, cage goes in the car, cars goes 1000 mphā€¦..car falls apart, cage starts rolling. Fair thee well Spanish ladies šŸ¦ˆšŸ¦ˆšŸ¦ˆšŸ¦ˆšŸ¦ˆ
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  21. well a damper oscillator has a wider and lower response, the amplitude should go down, but you can get into resonance of a broader frequency range. The wikipedia page on "(forced damped simple) harmonic oscillator" covers it well.
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  22. He canā€™t even survive lifting, so shock proof is not happening.
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  23. Race car šŸŽļø drivers donā€™t usually shop at the šŸ¶ pound.
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  24. The can law works the same way, depends on who is in the box
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  25. Of what?
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  26. 50% is really good, esp. considering the maximum possible efficiency, the Carnot efficiency, = 1 - T_environment/T_combustion ~= 1 - 294K/1089K = 73%. This is the maximum possible, zero entropy, ideal lossless cycle (no exhaust, no losses, no nothing), and cannot be attained in practice. 100% is not even a thing here.
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  27. Bro. Get real, and its kph. Breaking 1601 kph is just not as cool.
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  28. Then why can you see šŸ”„?
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  29. Ā @BKD70Ā  itā€™s a 2000 ft flame šŸ”„. Not very internal.
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  30. Ā @BKD70Ā  the 2000 ft flame is in the press release. Read it. I am educated, since I do have a physics phd from the hardest school on earth, and worked for nasa and the dark side for 25 years, and still have launch VIP badges in the drawer. Calling a šŸš€ and ICE, esp in the context of land speed records, is pedantic and silly, Iā€™d argue it matters where the chemical energy is converted into mechanical energy, and that hidden inside the cylinder in a an ICE, and is mostly external on a rocket
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  31. If I got to drive Kimi's car, I'd crash it and just go straight to my yacht to party.
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  32. Negative, as the conversion to mechanical force occurs out in the open.
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  33. Stop whiny and learn them. Iā€™ll help, no notes: 1 hpā€¦.784 W 100 kph ā€¦.60 mph Quarter mile is 1760/4 yards is (1760-176) semi-Demi meters. One ton is one metric ton but not quite 62,000 pounds is around 31 - 3=27 mega grams, but we want force not mass, so newtons. Wtf is a Newtonā€¦..irs a kilogram meter Hz/secondsā€¦.need to multiple by gee, 9.8 is not ten, metric system broken. Mach 1 is 1000 feet per second
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  34. Does any one know who has the Brands Hatch lap record?
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  35. No, note the giant šŸ”„ coming out the back.šŸ˜…
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  36. I agree... I have never found reverse in an F1 car.
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  37. Ā @v0ldy54Ā then do the math. The car is around 20000 pounds fueled, and it takes 62000 pounds to keep it at speedā€¦.and that does not check out, so it must be 4000 pounds empty? Or, take 1000 mph times the denisty of air times the cross sectional area times the supersonic drag coefficient divided by the mass. And the. Divide by g=22mph/sā€¦.and youā€™ll get 16, maybe.
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  38. Ā @v0ldy54Ā  looks good. We gonna need telemetry.
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  39. šŸ‡©šŸ‡Ŗ
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  40. It was invented in the town of Bedrock, by a modern Stone Age family
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  41. Thatā€™s a reasonable observation, I suppose a short burn rocket peaks better than a jet engine designed to operate somewhat continuously.
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  42. And jets/rockets start at zero horsepower.
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  43. For reference, 22 mph/s is one gee. A better representation than the usual 9.8 meters per square second.
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  44. Ā @insu_naĀ hmmā€¦bringing earth orbit into it is nice, but since the equator rotates at 1000 mph, seems like EC/day (earth circumference per day) is more sensible. It also helps our metric challenged friends, since the meter was originally defined so the polar circumference was 40,000km on the dot.
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  45. 2:14 Safety crews can neither approach nor get away from "any potential incidents", since they are only potential. They can do so with "incidents", though. But there's not gonna be one.
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  46. HmmmšŸ¤”ā€¦. If 62=64, then you need 64000 pounds to prevent 16g deceleration which puts the weight at 4000 poundsā€¦meaning the drag is ā€¦4 *16ā€¦wait for itā€¦62,000 pounds. That was circular.šŸ˜‚ But does it match 1000mph/22 seconds. Gee is 22 mph/s, so 1000mph/22s/(22mph/s/g)=2gā€¦rimes 4000 lbs/g is 8000 pounds of thrust to move the mass, leaving 54000 pounds to push air..ā€¦.so itā€™s air resistance dominated all the way.
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  47. So has the F1 gene been identified?
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  48. Thereā€™s an ap for that. Itā€™s called TikTokā€¦but it gives you a condition called TikTok šŸ§ , the inability focus on anything for more than 30 seconds, and deep lack of curiosity about anything other than that for which you clicked.
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  49. Learn what a mile is. Or do you really want thrust in newtonsā€¦no one knows what a Newton is. For example: you have a 9.8 kilogram silver bar, how many newtons does it take to lift it? No peeking.
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  50. so if your fuel is denser, but you inject more....you still run out.
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  51. I vote for the Holloman rocket sled, which does 0-10,325 KPH in a second or two. They do the ultimate engineering upgrade: replace that thick air (atomic weight ~ 28) in the way with a few mile long helium ballon (atomic weight 4). It's ok that the ballon breaks, because the sled is so much faster than breaking.
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  52. Ā @a1whiteĀ  (5280)(12)(2.54)/100
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  53. The blue flame šŸ”„ā€¦that brings back memories of reading the Guinness šŸ“•
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  54. So chemistry mixes the fuel mass with ambient fluid massā€¦whatā€™s the fractional breakdown?
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