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Out of Darkness: An Introduction to Light

Added Apr 13, 2023 •

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Describes how humans perceive color and images

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think about it normal part of our lives Environmental Center in New York I would affect we are we to be able to how does a magnifying glass work in the mirror we are in our daily lives good night our most important source of light however which eliminates our daylight hours sunlight can be used directly by plant without light plant through the energy in the air and water in the soil to make their own food call photosynthesis is also produce oxygen energy of light requires an amateur. work energy what else can we say about light we'll see you probably noticed sunlight streaming from behind a cloud do you think of life is traveling in a straight line is raised the idea that light travel from one place to another raises an interesting point to travel taking several seconds for me to walk from where I am now on the highway if my travel 60 miles an hour faster than we Noah 86000 miles per second to air or space 186,000 miles a second it's hard to imagine think of a Jet Plane from New York 10 miles across the country might be around 500 miles an hour I could travel back again over 30 times in one second light travels so fast that light from the sun which is more than a million miles away reaches of here on Earth and only 8 minutes stars that we see in the sky at night however are so far away that it takes over four years to the light from the closest star to reach Earth incredibly fast speed of light characteristic light one thing we might observe differently to different types of material take for example the glass door window lights. She called transparent water parents always are anything that allows no light to pass block when was something like a tree or my hand direct sources of light but most things are not one minute if you turn off an electric light at night the room becomes dark provide their own light but turn the light back on because the book people and everything else White the most striking examples of reflected light even in the middle of the night can dramatically light up a landscape direct source of life the moon and back to the Earth in other words sunlight what kind page of a magazine for example made theme. Very closely very small bump Electric Ball strike a part of this rough uneven surface and reflected Rays travel in many different directions the rate they all bounced off in the same direction smooth surface in such a regular and orderly glass of building turn on the smooth surface of water in a pond lake or pool as of light travel in straight line however where Liza straight line band Elfen Lied then coin in the bottom of the cup ounces in a cup the coin and then slowly where is the water in the cup razor white reflecting from the coin are traveling in a straight line but the cause of the Cubs position at the results another traveling the water transparent letting you see the coin refraction you can also strange effect caused by the Braxton or bending of light for example call Greg the Water band or refract the water and enter the air are raisins are orb and we can control the refraction of light brake release date transparent material together appear larger among her other convex lens telescope to help us another type of lamb outward concave lenses are used are used by themselves in different kinds of ideas to help people see more clearly sometimes need help the most important lenses are those that are in our eyes until without them we couldn't see anything at all I work how is it possible for example for us to see these flowers a flower reflects rays of light what is reflected Rays reach a person's eye clear covering the cornea VI right behind the eye ground opening now that's better the problem is taken care of brain is being right side up we see these flowers red flower purple or green or blue for that matter why do any of the things around us colors try to understand how light years ago conducting some experiments with some other transparent material with a triangle or hobby stores different colors red light orange green blue indigo call the band Spectrum colors of the spectrum drops in the air dropped act like prisms why do we see hours as red Hawaii why everything else great which they reflect calories burned while is made up of every color in the spectrum is really the absence of every color different things about light sunlight to produce food and oxygen transparent material like when you go to sleep with our eyes alone different colors of the Spectrum in other part different colors there is much more that you can learn about like and appreciate how old is Richard alive with beauty

Uploaded by Debra Hood.

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Out of Darkness: An Introduction to Light

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