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| Force multiplier |
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| james_s:
--- Quote from: PlainName on February 08, 2023, 11:56:39 pm ---It's like trying to bang a nail in with a hammer, but whatever you do and however you hold the hammer, the nail always manages to be slightly somewhere else at the critical moment. Keep coming back because it's one of those things you can't quite believe unless you see it ::) --- End quote --- After a couple of unsuccessful whacks I'll wander off and get my screwgun or pneumatic nailer. |
| fourfathom:
It's kind of like this, but not as funny: (Tremors "hammer" scene) |
| james_s:
--- Quote from: fourfathom on February 09, 2023, 07:26:57 am ---It's kind of like this, but not as funny: (Tremors "hammer" scene) --- End quote --- I laughed out loud at that, he's just flailing with that hammer. |
| electrodacus:
--- Quote from: fourfathom on February 09, 2023, 06:20:34 am --- --- Quote ---Stick slip hysteresis allows the energy to be charged and discharged. --- End quote --- You do realize that this makes no sense whatsoever, don't you? If there is energy to be charged and discharged, this same energy can be delivered in a steady continuous manner, with the wheels not slipping or sticking. But forget energy. Forget power. Just consider the geometry. If the geometry works but your physics doesn't, then your physics is wrong. --- End quote --- You do realize that the vehicle needs to move in the opposite direction of applied force ? "Kinematics is the study of motion of a system of bodies without directly considering the forces or potential fields affecting the motion" And you seen the real world tests witch show exactly what I'm saying so not a constant speed except for the case where vehicle is dragged in the direction of applied force. When vehicle moves fast in the opposite direction the motion is not constant as there is acceleration and deceleration but unless you measure that or slow down the video the human brain is not able to see that same way as the human brain is not able to see the 100 or 120 cycles per second an incandescent light bulb intensity increases and drops. You will just say look at the bulb the light is continuous with no dips and I say make measurements or take high speed video and measure based on the slowed down video information. Same as filament on the light bulb can not cool much in that very short period where current is zero or close to the speed of the vehicle can not drop to much as it is smooth out by the kinetic energy but even with that there is a small variation same as there is a variation in temperature for the light bulb filament. If you reduce the AC current from say 50Hz (100 times crossing through zero) to 5Hz (10 times) you will notice the change in light intensity without needing a measurement device or slowed down video. Same if you reduce the speed of the treadmill enough you will notice the charge discharge cycles and the associated vehicle speed variation same as seen in my slow down video. |
| Nominal Animal:
--- Quote from: electrodacus on February 09, 2023, 03:06:41 pm ---You do realize that the vehicle needs to move in the opposite direction of applied force ? --- End quote --- That's not what Newton's first law of motion says. In other words, what you insinuate there, is utterly wrong: you're actually saying, "You do realize that incorrect assertion". This is a really weird and awkward way to ask someone if they too misunderstand in the same way as yourself. Odd. |
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