Just buy one of these small flexible solar cells you can use to chrgae your mobile phone. It would make a good demo of free energy (as long as you are in sunlight) for your friends and it is a lot smaller than 24 inches. However the technology level is too high for you to build one yourself.I notice other contributers often confuse free energy with perpetual motion . Whist the latter is definitely not on, there is lots of free energy around wind and sunlight are not invoiced by anyone and if you are lucky you might also be able to access a free water flow.EDIT : note to Mr Logic. Human power is rarely free. You have to eat more food if you excercise and food is normally not free.note to Mark V : of course there is free energy nobody will send you a bill for the wind or the sun on the roof of your house. In a sense it is all free there is just not enough easily available to meet humanity is greedy needs without considerable expense to access and process it. You would better stick to geology.
Just buy one of these small flexible solar cells you can use to chrgae your mobile phone. It would make a good demo of free energy (as long as you are in sunlight) for your friends and it is a lot smaller than 24 inches. However the technology level is too high for you to build one yourself.I notice other contributers often confuse free energy with perpetual motion . Whist the latter is definitely not on, there is lots of free energy around wind and sunlight are not invoiced by anyone and if you are lucky you might also be able to access a free water flow.EDIT : note to Mr Logic. Human power is rarely free. You have to eat more food if you excercise and food is normally not free.note to Mark V : of course there is free energy nobody will send you a bill for the wind or the sun on the roof of your house. In a sense it is all free there is just not enough easily available to meet humanity is greedy needs without considerable expense to access and process it. You would better stick to geology.