# Recent content by jakrabb

1. ### Coils and Magnets

sorry its been a while since my last post but I've been away on business for the last 3 weeks..... I've attached a mock up of what I was thinking for this concept. I was wondering, with the coil, would it be more effective to have multiple coils or one big coil. The research I've done so far...
2. ### Unique numbers and Infinity

Please forgive any ignorance on my part because this is a little new to me.... I was just thinking that if we examine All of the numbers from .1 <= x < 1 that we see all possible sequences of numbers. when we change powers of 10 all we do is make that sequence of numbers more precise i.e. 12.3...
3. ### Coils and Magnets

as for the strength of the magnets, the information that I have to reference gives us this: they are Nickle plated, neodymium-35 magnets with dimensions of .375" dia. x .20" thick. It also makes reference to it being between 32MGOe to 45MGOe in stength, but that seems to be any NdFeB...
4. ### Coils and Magnets

Unfortunatly we dont get to violate the second law because it requires a lot of mechanical energy to stage it. Putting the magnets into all the little slots on the pully and all. Plus the slow loss of energy due to heat and noise, etc. I think it might be a nice novelty because it would have...
5. ### Coils and Magnets

see, what I am picturing is not one magnet but lots of magnets on a conveyor/pully system driven by the motor. so all you have to do is generate enough energy to raise one magnet a few inches each time. When it gets to the top it falls down the coil and generates enough for the next magnet to...
6. ### Coils and Magnets

so, let us add more specific information to the questions. We can estamate the acceleration of the magnet at 10m/s^2 (Gravity). we can estamate the number of coils to be around 12 coils per cm. Let us use a strong rare earth magnet like a neodymium (NdFeB) magnet. Lets make a goal of enough...
7. ### Coils and Magnets

How do I figure out how much electricity would be generated by dropping a magnet down a coil of wire? What are the specific variables that would determine this? Is the number of coils more importants than the thickness of the wire and If it does generate electricity whats the best way to store...
8. ### Magnets and Electricity

ok, I'm on my cell so forgive the spelling :) This question will be in stages so no one posts all the answers at once and nobody else gets to have fun.... First Thing: lets explain How electricity is generated when sliding it through coils of wire. The equations would be very nice also, if...
9. ### Hubble and doppler

thanks guys, that gets me started. and yes you were Very helpful marcus that is exactly the type of stuff i am looking for... i was trying to figure out if takeing different doppler readings from opposite sides of the sun might give different 'vectors' and give an idea of the true direction of a...
10. ### Hubble and doppler

I am trying to understand how the doppler effect was used when determining that the other stars were moving away from us. I get that the spectral lines observed are shifted and by examining that data we can calculate how fast its moving and if it is towards or away from us. could anyone...