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Feb
11
awarded  renewable-energy
Jan
20
revised Is possible to generate energy from gravity?
deleted 89 characters in body
Jan
20
answered Is possible to generate energy from gravity?
Jan
20
revised Is possible to generate energy from gravity?
add tag
Jan
18
comment which is efficient on solar electricity by photo voltaic or thermal
It's a new technology, still being developed. People will continue to invest as long as it shows the potential to be economically viable. It's very inefficient only at small scale: at larger scale (10s-100s of megawatts) it's efficient enough to be potentially economically viable.
Jan
17
revised Why not use our own light production to produce new energy instead of wasting it?
added 259 characters in body
Jan
17
revised Why not use our own light production to produce new energy instead of wasting it?
fix typo, retag
Jan
17
answered Why not use our own light production to produce new energy instead of wasting it?
Jan
17
answered which is efficient on solar electricity by photo voltaic or thermal
Jan
17
revised which is efficient on solar electricity by photo voltaic or thermal
fix typo, add tag
Nov
14
comment What mega pixel are human eyes?
I'm voting to close this question as off-topic because it's about Biology, not physics
Nov
4
comment Is work a form of energy or means of transfer of energy?
Possible duplicate of Can I define the term energy in terms of work?
Nov
4
comment Phsyics Energy Problem + Concept
Please give your question a meaningful title
Sep
2
reviewed Leave Open Does infinite actually occurs?
Sep
2
reviewed Close Dynamic response of temperature change when identical fluids flowing mix together
Sep
2
reviewed Close Curl of a vector field
Sep
2
reviewed Leave Open What ice pack formula can hold the largest energy difference?
Jul
25
revised Advanced Molten Salt Reactor - Is the concept of designing a reactor that uses spent nuclear fuel to generate power technically feasible?
added 1 character in body
Jul
6
reviewed Approve Wind generators - why so few blades?
Jul
6
comment Wind generators - why so few blades?
@BlueRaja-DannyPflughoeft that was added in response to BarsMonster's first comment. Four longer blades add a lot of cost, without significant yield increase, because three blades already capture the available energy in the swept area. More blades just increase the torque, which is useful for milling, but not for generating electricity.