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Not quite. A lot of light sources which appear to be independent of the sun are using solar energy at second hand. Any living thing which glows, flashes or sparks is using energy which it got from its food; all food comes indirectly from the sun. Most electricity comes from burning, and the fuel that is burnt comes from living things, hence from the sun also. However, electricity that comes from a nuclear power station does not get its energy from the sun - the Uranium that fuels the reactor was made in another star, long ago and far away. There are a few other ways to produce light without relying on solar energy at all. If you extract Radium from the mineral Pitchblende, it glows all by itself - don't stand too close. Or, let off a nuclear weapon; really don't stand too close.
What else can I help you with?
Is a bulb a source of energy?
No, a bulb is not a source of energy. A bulb simply converts electrical energy into light energy. The electrical energy is usually provided by a power source, such as a battery or a power outlet.
What is the proportion of light energy?
The proportion of light energy depends on the type of light source and its efficiency. In general, only a small fraction of the total energy emitted by a light source is in the form of visible light that we can see, with the rest being emitted as other forms of electromagnetic radiation such as infrared or ultraviolet light.
What is the only radiant energy that you can see?
The only radiant energy that I can see is the radiant energy that I call "visible light".It is the main source of my ability to perceive that Grant's Tomb is indeed colored orange.
What are the two main sources of energy in earths spheres?
The two main sources of energy in Earth's spheres are the Sun, which provides solar energy for the biosphere, atmosphere, and hydrosphere through processes like photosynthesis and weather patterns, and the internal heat of the Earth, which drives processes like plate tectonics, volcanic activity, and geothermal energy.
If you use a toaster to make toast the toaster converts electrical energy into solar energy and heat energy heat energy only heat energy and light energy or light energy only?
It doesn't matter what you use the toaster for, or whether you are using it at all.When it's ON, it converts electrical energy into both heat and light, whether or notthere is any bread in it.
Is a bulb a source of energy?
No, a bulb is not a source of energy. A bulb simply converts electrical energy into light energy. The electrical energy is usually provided by a power source, such as a battery or a power outlet.
What is limited from solar energy?
There must be a source of sufficient light. Ie. Solar energy is only charging half the time on earth, as we spin and only face the sun half the time!
Why life on earth requires a continuous suply of energy from the sun?
It is not necessary that our life forms on planet earth require energy only from sun. Plants can photosynthesize and survive under artificial light. The only thing is we don't have an alternative source of energy.
Energy source of most life on earth?
Most life on earth, gets there energy source from the sun, that is assuming that the majority of life on earth are autotrophs (plants). They get this energy by photosynthesising and getting a energy source called glucose, which is used in nearly all organisms on earth... they can then use glucose as a respiratory substrate, for respiration... Hope this helps :)
How is the earth able to give off light?
The Earth does not give off light on its own. It reflects light from the Sun, which is its primary source of light and energy. This reflected sunlight is what makes the Earth appear bright and illuminated.
Objects in space that can only be viewed from earth because of reflected light energy are said to be what?
Objects in space that can only be viewed from earth becouse of reflected light energy are said to be
Is the sun your only natural light source?
Yes, the sun is the primary natural light source for Earth.
Objects in space that can only be viewed from earth because of reflected light energy are said to be?
objects in space that can only be viewed from earth because of reflected light energy are said to be luminous.
What is the proportion of light energy?
The proportion of light energy depends on the type of light source and its efficiency. In general, only a small fraction of the total energy emitted by a light source is in the form of visible light that we can see, with the rest being emitted as other forms of electromagnetic radiation such as infrared or ultraviolet light.
Show me a timeline of the history of light sources?
The only light source throughout history was the sun. The moon is not a light source. The sunlight reflects off of it, allowing it to light the Earth sometimes.
Is the sun the only light source in the universe?
No, the Sun is not the only light source in the univrse. Every star is it's own light source, just as the sun is, but due to there distance they are not very effective. The Moon also creates a light source, because it reflects the light from the Sun back to earth. In the same way, if we where on the Moon, the Earth would be a light source, reflecting the light from the Sun at the moon.
What is the chief source of radiant energy?
The chief source of radiant energy is the sun. The sun is responsible for practically all energy on our planet. Geothermal (heat from under the earth) is the only exception.
