@kitenyos Hi there. I'll try to give you a very brief answer. When an electric charge (e.g. electron) moves relative to a magnetic field, it experiences a force. Assume that the electron is in metal wire and it can move. The force makes the electrons moving towards one end of the wire/loop which becomes "-" and the other end is going to be positively charge and thus the "+" "terminal"....
@kitenyos .... Of course the issue is a bit more complicated (for eg. you cannot concentrate too many electrons at one end as they repel each other) but I hope my brief answer points you in the right direction.
You can add on/off switch to break circuit and show (might be harder on video than in real life) that magnet wheel spins with ease when not generating electricity, but requires more energy to spin it when electricity for bulb is generated (circuit is closed). I didn't realized this fact when i was young ;)
@runnerbeanz52 My crappy design - I wanted magnets to be visible, hence outside coil. Built by carpenter friend of mine. Email me if you want contact details. A student of mine is building a better designed version (gears, changeable magnets / coils) for his A2 DT project. Will stick a film of it up when it's done.
@comp144 From Jonathan, the director: "Audio is from a beaten-up Sennheiser lapel mic (radio), recorded into a cruddy little audio recorder (MicroTrack II - absolutely *not* recommended) and resynced afterwards."
I can do better than Eromattifag : MAKE MORE FILMS !
Simple, great elocution for those whose mother tongue is not english. I especially like the scenario.
You could even have added when mentionning that the energy comes from your breakfast, that, ultimately, what power the bulb is solar energy indeed (you know what I mean) ; that would be just for making a bit of fun. If you make other videos, the only thing I could mention is to inject a little sense of humor.
He looks like a more intelligent version of Paul Potts.
TheZenPerspective 6 months ago
How do magnets work?
crazym24 9 months ago
Nice, simple and clear introduction to a topic that quite a few students find it difficult. Great filming and editing too!
ibphysicshelp 9 months ago
9 people deserve to read by candlelight for the rest of their life
declanfleming 9 months ago 3
Why does changing magnetic fields near a coil of wire produce voltage?
kitenyos 10 months ago
@kitenyos Hi there. I'll try to give you a very brief answer. When an electric charge (e.g. electron) moves relative to a magnetic field, it experiences a force. Assume that the electron is in metal wire and it can move. The force makes the electrons moving towards one end of the wire/loop which becomes "-" and the other end is going to be positively charge and thus the "+" "terminal"....
ibphysicshelp 9 months ago
@kitenyos .... Of course the issue is a bit more complicated (for eg. you cannot concentrate too many electrons at one end as they repel each other) but I hope my brief answer points you in the right direction.
ibphysicshelp 9 months ago
You can add on/off switch to break circuit and show (might be harder on video than in real life) that magnet wheel spins with ease when not generating electricity, but requires more energy to spin it when electricity for bulb is generated (circuit is closed). I didn't realized this fact when i was young ;)
volvoxpl 10 months ago
Bacon sandwich? Nice one Alom, great little vid! Catch you soon bro, Si and Sof x
Nomisnitram 10 months ago
Bacon sandwich? Nice one Alom! Catch you soon bro
Nomisnitram 10 months ago
A nice introduction to EM Induction, Alom. Who made the kit?
runnerbeanz52 11 months ago
@runnerbeanz52 My crappy design - I wanted magnets to be visible, hence outside coil. Built by carpenter friend of mine. Email me if you want contact details. A student of mine is building a better designed version (gears, changeable magnets / coils) for his A2 DT project. Will stick a film of it up when it's done.
Sciencefilms 11 months ago
What microphone did you use to shoot this?
comp144 11 months ago
@comp144 From Jonathan, the director: "Audio is from a beaten-up Sennheiser lapel mic (radio), recorded into a cruddy little audio recorder (MicroTrack II - absolutely *not* recommended) and resynced afterwards."
Sciencefilms 11 months ago
Im sure if you won the prize would go towards the £50,000 production fees to make the film...
jameswinmill 11 months ago 3
@jameswinmill Flattered that you think we spent so much money.
Sciencefilms 11 months ago
This has been flagged as spam show
now explain quantum physics!
SuperAtheist 11 months ago
You just didn't spin the wheel enough .......
XxPELICAN999xX 11 months ago
Hello Alom (Imaginascience here)
I can do better than Eromattifag : MAKE MORE FILMS !
Simple, great elocution for those whose mother tongue is not english. I especially like the scenario.
You could even have added when mentionning that the energy comes from your breakfast, that, ultimately, what power the bulb is solar energy indeed (you know what I mean) ; that would be just for making a bit of fun. If you make other videos, the only thing I could mention is to inject a little sense of humor.
Newtoon 11 months ago
@Newtoon Yes, it is all a bit earnest and could probably do with a lighter touch ;')
Sciencefilms 11 months ago
Excellent explanation!
bobster451 11 months ago
Can't you just connect the bacon sandwich to the lightbulb? ;)
Other then that... nice video!!
Definitely looking for more!!
morto360 11 months ago
make more films
eromattiffarg 11 months ago
@eromattiffarg Thank you - possibly the nicest comment I've ever had.
Sciencefilms 11 months ago