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The first quantitative estimate of the speed of light was made in 1676 by Rømer.
Light is the only thing we've observed to travel at the speed of light, though there are some theoretical particles that do the same... But why does it go so fast? and why can't everything go ...
Claude Monet, Poplars, 1891, oil on canvas, 36-5/8 x 29-3/16 inches / 93 x 74.1 cm (Philadelphia Museum of Art)
It is an educational content by Khan Academy, site that contains a wide variety of educat ...
Video Física
"Snell's Law is the quantitative way to analyze refraction. Snell's Law is expressed in the formula angle of refraction 1 x sin(angle 1)= angle of refraction 2 x sin(angle 2), which is the geometri ...
Video Física
"Electromagnetic waves are waves that take place in electromagnetic fields. When looking at electromagnetic waves in a vacuum, change in magnetic flux generate electric field and change in electric f ...
Video Física
"Double slit experiment, also known as the Young's experiment, was conduct by Thomas Young in 1803. This experiment confirms the wave nature of light, which is wave behaves as a wave, not a particle. ...
Video Física
"All lenses and mirrors can use ray diagrams to find images. There are three principal rays. The first principal ray occurs when the light comes in parallel to the principle axis, it goes out through ...
Video Física
"Physics mirrors are where light can be reflected and reconvened to form images. Two different types of mirror are concave and convex mirror with different properties. Two types of image formed by mi ...
Video Física
"Lenses are curved glasses or transparent materials. The focus of convex lenses is where rays parallel to principal axis go. The focus of the concave lenses is where rays parallel to principal come f ...
Video Física
"The photoelectric effect is a tool that we use to determine how much energy electrons have. The photoelectric effect was explained by Albert Einstein in 1905 and states that when light shines on meta ...
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