Greatest Mystery - Where does energy come from?


#1

From where energy has been finded and where its come from? We study that energy can not be created nor destroy so from where we get energy and how we find it?


#2

So the short answer is that the energy we encounter and use everyday has always been with us since the beginning of the universe and always will be with us. It just changes form all around us. Physicists think the Big Bang did.Lots and Lots of energy which cooled and condensed into Matter.

Example

One theory is that the energy in the universe today is the result of energy being released as the inflation field phase changed to its present ground state (this is from The Fabric of the Cosmos by Brian Greene). That ground state is now known as the Higgs field, and the energy later formed into quarks and leptons that we now call matter.


#3

Energy can be found in many things and takes many forms. There is potential energy in objects at rest that will make them move if resistance is removed. There is kinetic energy in objects that are moving. The molecules making up all matter contains a huge amount of energy, as Einstein’s E = mc^2 pointed out to us. Energy can also travel in the form of electromagnetic waves, such as heat, light, radio, and gamma rays. Your body is using metabolic energy from your last meal as you read this. Energy is constantly flowing and changing form. If you take your metabolic energy and rub your hands together, you have made metabolic energy into mechanical energy. Your hands will heat up. That is some of the mechanical energy turning into heat energy.

So energy can change form, but where did that energy ultimately come from? Let’s trace back a chain of events. A bicycle is rolling down the hill, transferring potential energy into kinetic (movement) energy. The bicycle got its potential energy (energy due to position related to gravity) by the rider using metabolic energy to move the pedals. The pedals used mechanical energy to move the chain, which moved the wheels. The rider’s metabolic energy came from chemical energy that was stored in the molecules of the food she ate. That chemical energy entered the animal whose meat she ate by the animal digesting a plant and breaking the bonds in its molecules. The plant made the molecules by using light energy from the Sun. The Sun’s light energy came from electrons in its atoms lowering energy states, and releasing energy. The energy in the atoms came from the nuclear reactions in the heart of the Sun. What started the nuclear reactions? Physicists think the Big Bang did.

So the short answer is that the energy we encounter and use everyday has always been with us since the beginning of the universe and always will be with us. It just changes form all around us. That is called the law of conservation of energy.


#4

so energy come from bigbang theory… but as there lots of things have source from where these havebeen discovered in same way from where there is also a source of energy from where it has been finded…???


#5

how all types of energys have been founded… from only energy…


#6

Energy is abundant all around us. The most interesting thing about Energy is that it can manifest itself in many forms, and convert from one to another.

Take for example this little example.

  • You ate breakfast in the morning and felt energized to carry out daily activities. The process of converting food to energy in our body is slightly complicated, and basically happens with food, oxygen and our organs and cells doing the work.
  • Now all the energy pent up inside you is potential at the moment. When you walk, run, jump; any sort of movement converts it to kinetic. Heat is also generated in the process.

One of the most interesting forms of energy conversions I find, are Piezoelectric crystals.