Light Facts

Featuring Interesting Light Facts, Funny Light Facts, and more. Light Fun Facts.

There are 4 Light Facts!

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1. Electric lights for trees were first used in 1895.

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Tags: Tree, Christmas Tree, Light, Electricity, Christmas

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Fact Page: Electric lights for trees were first used in 1895.
Date Added: 2011-12-13 22:27:39
Fact Category: Christmas Fact
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2. The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.

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Tags: Lightbulb, Light, World Record, Centennial Light, Electricity, Interesting, Fascinating, History

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Fact Page: The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
Date Added: 2011-07-15 11:33:29
Fact Category: Historical Fact
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3. The light hitting the earth right now is 30 thousand years old.

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The energy in the sunlight we see today started out in the core of the Sun 30,000 years ago - it spent most of this time passing through the dense atoms that make the sun and just 8 minutes to reach us once it had left the Sun! The temperature at the core of the sun is 13,600,000 kelvins. All of the energy produced by fusion in the core must travel through many successive layers to the solar photosphere before it escapes into space as sunlight or kinetic energy of particles.

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Tags: Light, Science, Space, Earth, Sun, Star

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Fact Page: The light hitting the earth right now is 30 thousand years old.
Date Added: 2011-06-07 14:57:52
Fact Category: Space Fact
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4. Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.

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Tags: Blue Light, Light, Sleep, Tiredness, Drowsiness, Night

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Fact Page: Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
Date Added: 2011-03-09 08:46:45
Fact Category: Interesting Fact

Light Facts

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