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Sorry but I beg to differ on this"In radiometry, radiant energy is the energy of electromagnetic and gravitational radiation. The SI unit of radiant energy is the joule (J). The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time."Any conductor/rectifier/coil/capacitor is picking up radiated energy from radio sources. Generally commercial radio networks that radiate kilowatts of energy. Yes extracting this is possible, on a small scale it may not matter much but enough to run your house is going to suck a BIG hole in the radio transmission around your [lace.IMHO Tesla is today somewhat over rated. Yes he proposed AC transmission rather then DC and made some discoveries in the field of RF generation but from what I read expla...see more »Sorry but I beg to differ on this"In radiometry, radiant energy is the energy of electromagnetic and gravitational radiation. The SI unit of radiant energy is the joule (J). The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time."Any conductor/rectifier/coil/capacitor is picking up radiated energy from radio sources. Generally commercial radio networks that radiate kilowatts of energy. Yes extracting this is possible, on a small scale it may not matter much but enough to run your house is going to suck a BIG hole in the radio transmission around your [lace.IMHO Tesla is today somewhat over rated. Yes he proposed AC transmission rather then DC and made some discoveries in the field of RF generation but from what I read explained little of what he actually did discover, making hints at a number of other things, including free energy and death rays which didn't come to anything in his life time.We do in fact run Tesla's energy grid today, or at least a modern equivalent. The pylon transmission lines carry AC at 225 - 250 kV eventually locally transformed down to 11 KV and then down to house hold mains @, In most of the world. 220 - 240 volts.Sorry to say my car does not have a high voltage auto transformer or HT coil in it to generate HT for the spark plugs, its a diesel. But a high frequency Tesla coil and an auto HT coil although related are different beasts it is charged at a very modest rate and relies on the distributor points braking the charge circuit to generate the HT spark.Tesla not withstanding - If you can explain practically how anyone can store static electricity for distribution then I for one will invest in your stock.Sadly although lightening and other static sources produce potentials of millions of volts there is very little current involved making static useless for powering anything. The voltages alone make harvesting it impractical at our current stage of technology.PS anyone can generate a few million volts of static electricity using a van de graf generator and happily draw sparks from it with their fingers. NOT recommended with lightening.
Possibly, but at a microscopoly small and almost undetectable level. Our mechanical machines, motors, generators, electronics produce a magnetic field many millions of times greater but we still cannot harvest meaningful energy from this source.
1. You need to answer questions so people can help2. You need amplifier connected to speaker.3. The input and output should be marked on the amplifier - if not try and see if the manufacturer has a web site with a diagram.4. The amplifier will need power at a suitable voltage.
Fixed - Thanks guys!
For the code. I guess, this was 3 years ago!
I love the trap :-) however your mouse is almost of the house variety and will come back into the warm comfort of you house unless you walked him 2 or 3 miles away!
IF your new then your starting at far too high a level to expect success.You need to start at a low level and build skills and knowledge.Start by learning something about microcontrollers, your going to need to know. Start simple flashing LEDS and reading switches.Start with wheeled robots. Examine sensors.http://www.instructables.com/id/Lets-Program-a-PIC...http://www.instructables.com/id/Reading-Sensors-Wi...Then at some time in the future come back and discuss specific issues you may be having.Believe me this is the best approach even if it sounds boring.
Probably. However that won't get you over the practical limitations.I assume this is a student project.Your now in that area where you have to do your own research and evaluation. You need to look at equipment specifications - Evaluate how others have done this and start to think about the skills your going to need to make it work.It is NOT for others to do this work for you. Otherwise your degree/exam qualification would belong to them!Start reading, taking notes and valuatingI repeat that from a purely practical point of view this isn't a workable system for schools, at least not in the UK.
I don't know why but this worries me.
I doubt it a racoon has very mobile hands and will soon find out how to lift the door as it isn't latched down.As I built it it would fit a Racoon either.HOWEVER the principles could / should work. You need to make a method of latching the door closed once it is down, a normal gate latch could work or a simple spring latch as in the picture below (Click to see full size)
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Ok - Now the hard part - take them out!
Why not take a balloon and attach to a straw? If you want a particular shape, make a frame to snap round the balloon.
Ah yes, unfortunately Life doesn't let you cheat so easily. Wouldn't it be better to just pay attention and get an education?
Just boil the water before freezing
To be honest I don't know, we don't get gophers in the UK. However as long as you use a suitable bait that they will go for it should work.A rabbits is not nimble enough, (or bright enough), to try to lift the door by pulling at the bottom. A gopher may be a bit brighter.It doesn't cost much so why not give it a go and let us know.
This isn't free in any sense other then your not paying for it. The transmitters, and the users of that transmitted energy would be very cross with you for blanking out their reception if you were to try to draw any amount of power from the air.Whilst on this type of "free" energy you can get 50 volts from your phone line. It's free in so far as you won't pay any more for tapping it;. - The phone company take a dim view though.
I know you say this may not be such a good idea, but Lipo cells have a distinct dislike for providing huge currents. this is effectively a short circuit and my experience with RC models tells me this results in the cells bloating and quickly becoming useless if not actually igniting.
1. Not all cars have the handy pull up knob, in fact none of the 3 cars we have in the UK do.2. On each of them this will result in the alarm setting off as soon as the door is opened. :-( 3. Easier to use a wire coat hanger with a loop bent in the end.
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