Albert einstein why is the sky blue

So white light will hit a gas molecule, but bluish light will come out - and at right angles to the original direction. So the light that came from the sun will hit a gas molecule high in the atmosphere, and then will stutter in a zig-zag fashion down towards the ground.

Each time the light hits a molecule, the light comes out mostly at right angles to its previous direction of travel - and each time, it's more blue in colour. There you have it - the sky is blue is because of Rayleigh Scattering by the nitrogen and oxygen molecules in the atmosphere. And the ocean is blue because of Rayleigh Scattering by the water molecules that make up the water, as well as reflecting the sky. And that's why, regardless of what Dorothy sings in the Wizard of Oz, blue skies happen in most places, not just over the rainbow.

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Skip to navigation Skip to content. Before most people were intelligent enough to ask the toughest questions in physics, Einstein had already calculated, tested, and published the answers in his theories of General Relativity and Special Relativity.

Einstein's theories were not just new things to put in a physics textbook; he actually developed very useful inventions and ideas for America. Albert Einstein changed, altered, or affected the history of the United States Einstein was born on March 14, Out of college, he tried a few times to get a job teaching, but he was denied! He went back to school to get his doctorate while working as a technical assistant at the Swiss Patent Office.

In his spare time at work, he developed some of the equations that he later published. After recognizing his talent, Polytechnic offered him a job as a Physics teacher. Einstein traveled to a few different where pi Who is right? Did the bolts strike at the same time, or did the bolt strike the front of the train first? Einstein argues that they are both right in his Theory of Simultaneity Bergson. Another interesting concept made possible in the 4th-dimension in space is another theory of time travel.

If scientists are able to figure out a way around the Equivalence of Mass and Energy problem of accelerating a particle at the speed of light, then time travel may be possible. Einstein developed a formula that corresponds time with distance and speed. In the 4th-dimension, if matter was able to reach the speed of light, Einstein concluded that it could in fact travel negative time Hawking.

Albert Einstein's contributions to American advancement in physics and thinking in general. He was the instrumental figure in developing an atomic bomb. Get Access. Satisfactory Essays. What might refract more blue light towards our eyes?

In , the mathematician Leonhard Euler speculated on the wave theory of light helping to explain why the sky is blue. The 19th century saw a flurry of experiments and observations of all sorts, from expeditions to mountaintops for observation to elaborate efforts to recreate the blue sky in a bottle—as chronicled in Peter Pesic's wonderful book, Sky in a Bottle.

Countless careful observations of blueness in different locations, different altitudes, different times, were made, including with bespoke devices known as cyanometers. Horace-Benedict de Saussure invented the first cyanometer in His version had 53 sections with varying shades of blue arranged in a circle. Saussure correctly reasoned that something suspended in the air must be responsible for the blue color.

Indeed, for a very long time, it had been suspected that something in the air modified the light and made it appear blue. Eventually it was realized that it was the air itself that did this, that the very gaseous molecules that make up air itself are essential to making it appear blue. And so, the blueness of the sky is connected to the discovery of the physical reality of atoms. This Einstein's efforts helped out with the development of the quantum theory mechanics.

For this contribution, Einstein was awarded the Nobel Prize in physics for see below. Einstein based this theory on two postulates: the principle of relativity, that physical laws are the same in all inertial reference systems, and the principle of the invariance of the speed of light, that the speed of light in a vacuum is a universal constant for all observers regardless of the motion of the observer or of the source of the light.

He was thus able to provide a consistent and correct description of physical events in different inertial frames of reference without making special assumptions about the nature of matter or radiation, or how they interact. The case, "Why is the sky blue? Why Is the Sky Blue? The general theory is principally concerned with the large-scale effects of gravitation and therefore is an essential ingredient in theories of the universe as a whole, or cosmology.

The theory recognizes the equivalence of gravitational and inertial mass. It asserts that material bodies produce curvatures in space-time that form a gravitational field and that the path of a body in the field is determined by this curvature. In other words, according to this theory, space becomes curved in the vicinity of matter this is the meaning of gravity ; the greater the concentration of matter, the greater the curvature and the greater the gravity.

The geometry of a given region of space and the motion in the field can be predicted from the equations of the general theory.

In the Indian physicist Satyendra Nath Bose sent Einstein a paper in which he derived the Planck law for black-body radiation by treating the photons as a gas of identical particles.