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Ever since Democritus - a Greek philosopher who lived between the 5th and 4th century's BCE - argued that all of existence was made up of tiny indivisible atoms, scientists have been speculating as to the true nature of light. Whereas scientists ventured back and forth between the notion that light was a particle or a wave until the modern, the 20th century led to breakthroughs that showed that it behaves as both.
These included the discovery of the electron, the development of quantum theory, and Einstein's Theory of Relativity. However, there remains many fascinating and unanswered questions when it comes to light, many of which arise from its dual nature. For instance, how is it that light can be apparently without mass, but still behave as a particle? And how can it behave like a wave and pass through a vacuum, when all other waves require a medium to propagate?
Wiki User
∙ 6y ago
Wiki User
∙ 11y agoThe speed of light in space is about 300000 Km per second
(About 186,000 miles per second)
Sunlight is "light" of course, and hence travels 186,000 miles per second in a vacuum.
Wiki User
∙ 15y agoit travels like radio waves but as light, and is in the form of ultraviolet rays.
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Are solar panels an example of solar energy?
Solar panels are not an example of solar energy but rather they are means through which solar energy (that is energy from the sun) is converted into electricity. Check out the related link for great videos and information on solar panels.
What is the importance of solar energy in human life?
solar energy do not do anything for humans
What of energy transformations is taking place in the kelp as it carries out photosynthesis?
DSolar energy> Chemical energy
Does biomass need solar energy to run?
No, biomass typically produces energy through incineration which does not require solar energy.
What the benefits of using solar energy?
Once the equipment has been paid for, solar energy is free.
What does solar energy travel in?
vacuum
How does solar energy reach eart?
the rays of the sun travel through the air
What quiestions are there about solar energy?
A question about solar energy could be: what is solar energy?: what does solar energy do?:does solar energy do anything for the earth/planet?
How do solar cars refuel?
Solar cars refuel just by regaining energy from the sun. They use all of that energy to create fuel in order to run. Some solar cars refuel by using wind energy! Solar cars gain energy from the sun or from the wind to store the energy in their fuel tanks and they use up the energy to make fuel that allows them to travel for long distances! Solar cars have no limits on how many times they can regain energy from the sun or from the wind!
How is the sun's energy solar energy?
the suns energy is solar energy because sun means solar so solar energy is from the sun
What are the edvantages of solar energy?
Solar energy is inexhaustible. Solar energy is not pollution. Solar energy can be used anywhere on Earth.
How does solar get its?
Solar systems get their energy from the sun. Solar energy is captured by a solar panel, or collector. This panel converts solar energy to electrical energy.
What form of energy starts photosynthesis?
Solar energy
Where does solar energy get its energy from?
In solar energy that comes from the sun
What types of energy is a Solar Panel?
Solar panels harness energy from the sun--Solar energy!
What type of energy is solar energy?
Solar energy is renewable energy and is environmentally friendly
Is a solar cell an energy source?
A solar cell is not an energy source, but an energy converter. In the case of solar, the energy source is light, and the solar cell converts it from light energy to electrical energy.
