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  1. H

    vacuum heavy magnetic ring flywheel/ inertial battery idea

    a large heavy ring of mass or magnets levitating on a ring magnet, in a vacuum tube. propelled by people via sound, and focused sun light, and static electricity, and magnetic flux, and other renewable sources, to 600,000+ mph. i saw a video on dome coils that induces 2 times the voltage at 1/3...
  2. H

    thermometric generator modules series + parallel = amplify?

    i was wonder if connecting thermoeletric generators in series and parallel would amplify the wattage output more than if the same amount of modules were all used just in series or just in parallel? or some compounding of multiple series and parallel batches?
  3. H

    dd axel motor vs dd hub motor, how much better is axle?

    i want to know the benefits of each over the other. like would the axle motor be more energy efficient and give a more efficient continuous torque output? can the axle version have regen braking? is the axle version much better?
  4. H

    48V tricycle differential, anyone know of these?

    https://www.alibaba.com/product-detail/48V-tricycle-differential-for-passenger-tricycle_60494441951.html could it freewheel? this look the same, below it says speed ratio 1:10? https://www.alibaba.com/product-detail/motor-scooter-trike-electric-motor-trike_1169699961.html and this says...
  5. H

    since rolling resistance is so low, a smaller rear tire?

    as long as the driving wheel is in front when cruising below 5% on inclines and both rear and front wheels drive on inclines above that, i don't see much of a downside to this. except 2 different rpm motors maybe and 2 throttles or a complex controller. does the weight shift to the rear wheel...
  6. H

    how to calc max rpm of dd hub in given wheel size off ground

    so i can calculate what will match my desired riding speed? i ask because i read this Your efficiency will depend on whether your motor is suited to the task at hand. A motor that is too powerful waste a lot of energy spinning its own magnets/electromagnets past each other. A motor that is...
  7. H

    2 different size wheels, is it practical and energy efficien

    can you have a larger diameter front wheel and smaller diameter back wheel? would it make it more efficient since a larger wheel is better for cruising and smaller wheel is better for accelerating and hills and snow? want to use a front dd hub motor and a mid geared. and only used the front dd...
  8. H

    energy efficiency for 2 types of travel

    i live in small town and bike to work and for groceries and to town. i do some cruising but not a whole lot. i heard 20 mph or less is an efficient speed and will keep that in mind. i am wondering the most energy efficient way to travel on flat and i don't mind pedalling a little bit, especially...
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