Search:

golf humor funny golf golf comedy funny golf video sexy golf video

How to build a simple electric motor, plus how it works.

Help With Acne
Help With Acne Help With Acne
Help With Acne

The Tabletop Explainer is an intermittent educational vlog presenting answers to viewer questions, brief science lessons, and ideas for teachers and students. It is a feature of my blog "Tilts at Windmils" which can be found at http://www.davidcolarusso.com/...

Channel: Howto & Style
Uploaded: November 30, 1999 at 12:00 am
Author: dcolarusso

Length: 02:17
Rating: 4.54
Views: 511487

Tags: demos  electric  experiments  explainer  motor  physics  science  simple  tabletop  

Video Url:


Embed Code:

Video Comments

horlacsd (November 30, 1999 at 12:00 am)
Hey just being anal here... around 1:20, when explaining the force that the wire experiences (F= q*(vXB)). Since positive charge, and given the permanent magnetic field lines (North - South), the top of the loop should experience a force OUT of the screen, and the bottom should experience a force INTO the screen. Awesome vid though, umma build one asap!
pookyking2 (November 30, 1999 at 12:00 am)
we doin this in 9th grade for some reason
MileyandMandyfan3 (November 30, 1999 at 12:00 am)
we did this in school, i think in 6th grade...
antisp13 (November 30, 1999 at 12:00 am)
too fast man
horizonflyer9 (November 30, 1999 at 12:00 am)
what wire gauge (AWG) should i use?
omgwhy93 (November 30, 1999 at 12:00 am)
uuumm is the battery supot to get hot ahhh??? this is my firt time doing this and it ant working
wolvesXD (November 30, 1999 at 12:00 am)
why so fast?
dantheman11995 (November 30, 1999 at 12:00 am)
why so fast? and what to be used for?
geeleegoat (November 30, 1999 at 12:00 am)
I guess the inertia of the coil carries it through, although I suspect the efficiency is drastically reduced. A more efficient configuration using DC without commutation would be the unipolar motor. You've probably seen lots on YouTube. Anyway, thanks for the input. Cheers.
krankiev (November 30, 1999 at 12:00 am)
it works just fine, I can see how it might help to commutate or pulse the current but it's not necessary. the wires to get a bit of black carbon buildup that has to be cleaned off. It might have more speed and power with pulsing/ commutating current though.

The WEG Funny Golf Videos © 2007 All Rights Reserved.