Testing an Adjustable Lego Generator 

So size matters and bigger is better. Got it.

I'm so surprised you don't have more subscribers, your channel is amazing and inspiring!

I see your videos don't make big numbers, I belive these videos are a lot of work. Don't be discouraged and keep up your work! Some day you will have a big and successful channel.

You've done a fantastic job with your channel so far and as many others are saying it seems like you're about to gain a lot of traction! The electromagnetic experiment niche could prove to be very popular. As an idea, I would love to see you build the "most powerful lego electric motor ever" as I can't really find any examples of electric motors made from just magnets, copper, iron, and lego. You are so much of the way there already with the structure in this video! The most powerful lego motor I can find is the RC race buggy motor, which draws 15 watts at ~10v and produces just ~6 watts of mechanical power. At the scale of this build, with some more stator poles you would already be in the 100s of watts power handling territory, and possibly already better than the 40% peak efficiency of the buggy motor if you choose a BLDC pole pairing/winding that works with off the shelf brushless ESCs! If I were attempting this I would put magnets on both sides of the rotor and add a mirrored stator to cancel out the axial forces from the poles on the rotor and bearings, as I doubt lego pieces hold up well when used as a thrust bearing. Then I would do whatever possible to improve the rigidity of the rotor, the axle, and the bearings. Also, if you want to make a more efficient motor, you might look for "soft iron rod" or "ferrite rod" for the cores instead of an iron or steel bolt. Ferrite will be the weaker core material compared to soft iron, but both will produce significantly less heat for the same power as the bolt (significantly lower eddy current losses) as long as you aren't saturating them. Of course the bolts would work though! If you pulled this off, I have no idea what you'd then be able to do with 100s of watts of mechanical power in lego, but you'd probably be one of the first to have that problem haha.

emf = -N*Delta_Phi/Delta_t, where N is the number of turns of wire, and Delta_Phi is the change in magnetic flux. The fact that your bigger magnet has a stronger magnetic field directly means that you will have a larger emf with all else being the same.

Nice experiment man, would be nice to see the output waveform on an oscilloscope between the 2 magnet sizes.

I'd recommend using a small crank than a twist, I think the power output would be more consistent than it is as you use it

Can you make a short Video about how this ratchet works it’s kinda nice to have this mechanism and please keep on working on your videos as you did before they are very interesting 👍

i love that kind of videos! thank you so much! i have got a question. why wont you try to make infinite energy wheel? maybe by using one of your projects modify it so batteries in the controlling brick are fake and you will use a modified ones with wires attached, and then a motor. by making a big enough input to output gear ratio it should be technically possible, shouldnt it? and you can always add a 'freewheel' and another powering thing, this time manual so the first start will be manually controlled until the brick starts.

I would be very interested in how you built the device at minute 1:18 . Are there instructions or a video for this?

You can put 6 bigger magnets and some smaller magnets

It's not rectifier chip. It's FUUUULL BRIDGE RECTIFIER!!!

I really enjoyed this. You could use this like the gravity emergency light. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qua01FJ7YbA.html