3. Energy, in physics, the capacity for doing work. It may exist in potential,
kinetic, thermal, electrical, chemical, nuclear, or other various forms. ... After it
has been transferred, energy is always designated according to its nature. Energy
has the same units as work.
Future Sources Of Energy:
There are different sources of energy(renewable and non-renewable).
Some of them are as follows:
1. Tidal Power
2. Antimatter
3. Wind Power
4. Solar Energy
5. Human Power
4. Tidal power or tidal energy is harnessed by converting energy from
tides into useful forms of power, mainly electricity using various
methods. Although not yet widely used, tidal energy has the potential for
future electricity generation. Tides are more predictable than the wind
and the sun.
1) Tidal Power:
5. When antimatter comes into contact with matter it annihilates; the mass
of the particle and its antiparticle are converted into pure energy.
Although the annihilation of matter and antimatter releases energy,
antimatter does not occur in nature: it has to be created. This requires in
itself a lot of energy.
2) Antimatter:
6. Wind power or wind energy is the use of wind turbines to generate
electricity. Wind power is a popular, sustainable, renewable energy source
that has a much smaller impact on the environment than burning fossil fuels.
Wind farms consist of many individual wind turbines, which are connected to
the electric power transmission network.
A wind turbine turns wind
energy into electricity using
the aerodynamic force
from the rotor blades,
which work like an airplane
wing or helicopter rotor
blade.
3) Wind Power:
7. Solar power is the conversion of energy from sunlight into electricity,
either directly using photovoltaic's (PV), indirectly using concentrated
solar power, or a combination. Concentrated solar power systems use
lenses or mirrors and solar tracking systems to focus a large area of
sunlight into a small beam. Photovoltaic cells convert light into an
electric current using the photovoltaic effect.
4) Solar Power
8. We already have human-powered devices but scientists are working on
harvesting power generated from normal human movement. One day
your phone may charge when it rustles around in your bag, pocket or
your fingers move on the screen. There are even small body-worn
systems that passively produce when you move. Human power isn’t
going to solve global warming, but every little bit helps.
5) Human Power