This Car Travels Farther Than You Push It
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Published 2024-03-15
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#3dprinting #physics #engineering #motor #electric #motor #electricvehicle #generator
All Comments (21)
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Finally! The external combustion engine has arrived!
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Your car is 100% efficient, it's just also ever so slightly heating up your room.
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There is something incredibly funny about your durdling little car at the end that manages to be sopping wet, made of cheap plastic, and on fire, all at the same time.
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50 years ago, for a high school science project, I cobbled together a toy car with an electric motor connected to the wheels and driven as a generator, to demonstrate electric braking into a resistive load. With switch open, my toy car went fast down a ramp. With switch closed, the car went slow down the ramp. I give Tom an A++ for an excellent project!
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As someone who works with 44awg wire all the time, a trick we use to make soldering them easier is to just tie a knot where you want the solder to go, flame it to burn away the enamel, solder. Works well enough and saves a lot of headache.
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As a retired Engineer, I've always really liked your videos. This one is very interesting. Thank you.
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How it evolved from nothing into absolute silly invention just because is so amazing. Love it
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This video is such a great example of how great it is to live in the 3D printed prototyping era.
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100% guarantee the discussion on work applied via the push or through the ramp will be a regular question on physics exams now. You even had me scratching my head until you broke out the force arrows, awesome demo!
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Upscale it and ride it?
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I love this video! I am a mechanical engineering student right now, and this video takes some concepts I have learned in dynamics, circuits, and thermo and combines them into two fun projects!
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This is just a more complicated version of the old "friction drive" toy cars which used a mechanical flywheel to store some of the energy imparted by the initial push to keep the toy car running for some time after you let it go.
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You should keep the capacitor in the peltier module powered car. The motor draws power in short bursts when a magnet passes the reed switch. And so when the motor is not drawing current the thermoelectric generator is still converting heat into electric current and charging the capacitor. Otherwise, when the reed switch is open, the thermoelectric generator is unable to convert the energy because the current has nowhere to flow.
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That generator trike is strikingly beautiful AND incredibly fascinating... Bravo mate!
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Awesome video! Interesting point to note is that using the Lagrange for electrical systems the capacitor can be equivalently thought of as a spring. Thus, an equivalent system would actually be one where a spring is coupled with the free-wheel , edit: so long as (k/2) = (1/2C).
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Bro that was awesome. Such simple concepts, so well explained and visual.. I am astonished. Awesome job!
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That was an excellent macro shot of the reed switch in operation! Seeing the tiny contacts closing/opening as a magnetic field passes is difficult to see without magnification.
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That might be the silliest thing you have made on your channel, which says a lot. Awesome video.
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One big issue with the ramp test: The freewheeling car has more potential energy because the center of mass is farther back, toward the rear axles and, consequently, farther up the ramp. If you watch a few videos on optimizing pinewood derby cars, there are a lot of good examinations of this.
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Perfect video to help understand regenerative braking for the Australian GP this weekend.
