Monthly Archives: September 2018

Is Paul Dirac the best physicist ever?

credits:wikimedia There are good reasons to say that PAM Dirac is indeed the greatest physicist. He was present at the birth of quantum theory and took part in the debates as to the merits of the wave theory formulation due to Schroedinger, and the matrix formulation due to Heisenberg. Dirac managed to show that they […]

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What Is Quantum Mechanics?

Quantum mechanics is the body of scientific laws that describe the wacky behavior of photons, electrons and the other particles that make up the universe. Credit: agsandrew | Shutterstockndd  By Robert Coolman, Live Science Contributor | September 26, 2014 06:36pm ET Quantum mechanics is the branch of physics relating to the very small.  It results in what may appear to be […]

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Why is the Sun stationary?

credits:sun gifs Well, its not. Technically, the sun is orbiting the center of our galaxy like we orbit said Sun. However, if you mean ‘why do we orbit the sun instead of the sun orbiting us or both of us orbiting over an invisible axis?’ then it’s because the sun is SO MASSIVE! All of […]

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How big is our solar system?

This artist’s concept depicts NASA’s Voyager 1 spacecraft entering interstellar space, or the space between stars. Interstellar space is dominated by the plasma, or ionized gas, that was ejected by the death of nearby giant stars millions of years ago. The environment inside our solar bubble is dominated by the plasma exhausted by our sun, […]

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How do we measure time beyond the solar system?

DSAC is prepping for a yearlong experiment to characterize and test its suitability for use in future deep spaceexploration. Image via NASA Jet Propulsion Laboratory By Todd Ely, NASA We all intuitively understand the basics of time. Every day we count its passage and use it to schedule our lives. We also use time to navigate our way to the […]

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What is Physics?

Physics is a natural science based on experiments, measurements and mathematical analysis with the purpose of finding quantitative physical laws for everything from the nanoworld of the microcosmos to the planets, solar systems and galaxies that occupy the macrocosmos. The laws of nature can be used to predict the behaviour of the world and all […]

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Why is a solar system black?

Add caption Space is full of light, but it doesn’t look like it. Credit: NASA, ESA, and S. Beckwith (STScI) and the HUDF Team The color black usually signals the absence of light. But inside the solar system, space is filled with light. “Light usually travels straight ahead in a line unless it reflects off […]

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Why is Earth the densest planet of the solar system?

• Among all the planets in the solar system, the Earth is the densest planet. • Although small in size, the Earth has several remarkable physical properties which make it the densest planet in the solar system. • Density is defined as the mass of a substance divided by per unit of volume. It is […]

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