Honourable
physicsforums
members, Suggest me a
"online" course to get
degree in energy
science. I have
completed higher
secondary. I am very
interested in energy
science and renewable
energy engineering.
hi, friends, i have heard about something called as electrodynamic tethers. These are long conducting wires usually of aluminium which are used to change the orbits of spacecraft s. I took this subject for my class seminar. These electrodynamic tethers actually uses Earth magnetic field. They...
There is a mysterious relationship between these things. But, to understand those things you have to clear the ideas of space and time. First of all you have to be familiar with Einstein's theory of relativity.
Thank you. But my doubt is that, at last what about the total energy? Do it store anywhere? I am asking this because somebody told me that those chemical energy is utilised to change the total entropy of the universe. Is it true?
I have a doubt about the energy. According to law of conservation of energy, energy can neither be created nor be destroyed. But, when I light a LED with a battery until the whole charge discharges, where those chemical energy go?
Better way to prevent all the magnetic field lines from coming outside of the box is, use a box made up of a super conductor to separate bar magnets. The super conductor plate is able to divert all the field lines.