Albert Einstein and Relativity for Kids: His Life and Ideas with 21 Activities and Thought Experiments (For Kids series)

Albert Einstein and Relativity for Kids: His Life and Ideas with 21 Activities and Thought Experiments (For Kids series)

Jerome Pohlen

Language: English

Pages: 144

ISBN: 161374028X

Format: PDF / Kindle (mobi) / ePub

Winner of:
2013 VOYA Nonfiction Honor List Selection

Best known for his general theory of relativity and the famous equation linking mass and energy, E = mc², Albert Einstein had a lasting impact on the world of science, the extent of which is illuminated—along with his fascinating life and unique personality—in this lively history. In addition to learning all about Einstein’s important contributions to science, from proving the existence and size of atoms and launching the field of quantum mechanics to creating models of the universe that led to the discovery of black holes and the big bang theory, young physicists will participate in activities and thought experiments to bring his theories and ideas to life. Such activities include using dominoes to model a nuclear chain reaction, replicating the expanding universe in a microwave oven, creating blue skies and red sunsets in a soda bottle, and calculating the speed of light using a melted chocolate bar. Suggestions for further study, a time line, and sidebars on the work of other physicists of the day make this an incredibly accessible resource for inquisitive children.





















countryside rolling by— state of absolute rest. The universe was a vast you’re moving relative to the ground beneath ocean of ether. We sailed through the ether, you. light waves all around. 36 Interior-Albert Einstein for Kids (144 pages).indd 36 8/1/12 9:47 PM No, said Einstein. There is no ether. Motion can only be defined when relating two “reference frames” to each other. The first reference frame in the thought experiment above was your space capsule—Capsule A. The second reference

Dilation thought experiments, as an object speeds up, its internal clock appears to slow down relative to an observer at rest. According to the math, if that object were to reach the speed of light, its time would stop altogether, at least when viewed by a viewer at rest. Einstein claimed that this was one more reason it is impossible for an object to travel at the speed of light. Even stranger than an object getting shorter as it gains speed, Einstein determined that the object would gain mass.

(Most astronomers called it M31.) At the time astronomers believed nebulae, which came in all sorts of shapes, were clouds of matter in the process of becoming stars or planets. Hubble discovered that Andromeda was instead another galaxy, and it was 2,500,000 light-years away, so far away that it looked like a tiny, blurry star. Edwin Hubble (1889–1953) Edwin Hubble was born in Marshfield, Missouri, The Hubble Space Telescope, carried into orbit in 1889. His father wanted him to be a lawyer,

the distance markers ➤➤ Peep (or large marshmallow) 1. Using a red marker, draw a dot on the foot of your Peep. 2. Next, use a black marker and a ruler to draw another dot, 1 centimeter away from Look at your data and calculations. Imagine that the Milky Way is the red dot and other galaxies are black dots. What can you say about the relation- between the red dot and the ship between how far apart dots/galaxies are first black dot. Measure and the speed at which they move, relative to

nervous to play the piano. It was the last time Albert would ever see Eduard or Mileva. Albert and Elsa left Belgium and stayed for some months in Oxford, England, in the home of a member of Parliament. While there Einstein met with Winston Churchill, who for years had been warning the world of Hitler’s sinister intentions. Finally, on October 7, 1933, Albert and Elsa sailed out of Southampton aboard the Westmoreland, bound for New York. Helen Dukas and Walther Mayer went with them. They never

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