On March 20, 1916, Albert Einstein sent a paper to Annalen der Physik, one of the oldest scientific journals on physics which has been published since 1799. The study was titled “Die Grundlage der Allgemeinen Relativitatstheorie”, translated as “The Foundation of the General Theory of Relativity.” It was the first comprehensive overview of the final …
Category Archives: Physics
Albert Einstein explains his famous formula E=mc² in his own voice (video)
E=mc2 is probably the world’s most famous equation. It means “Energy equals mass times the speed of light squared.” The formula basically implies that a small amount of rest mass corresponds to an enormous amount of energy, and that’s the physics behind nuclear fission or nuclear fusion. In this amazing video, Albert Einstein explains his …
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AI Successfully Controls Plasma in Nuclear Fusion Experiment. Are we finally close to the Fusion Power?
To keep Earth from dangerous ongoing global warming, the world is looking for an energy source without CO2 emissions. There is actually a dream candidate: successfully achieving nuclear fusion holds the promise of delivering a limitless, sustainable source of clean energy.
Here’s why light slows down in water or glass [best explanation]
It’s a well-known fact that light slows down in water or glass, or any other transparent medium. Even more interestingly, after leaving that medium, it goes back to its original speed. Yes, it speeds up! But, how could that happen? Why does light slow down in water or glass, and why and how does it …
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Einstein’s Theory of Relativity [A Summary]
In the history of science and physics, several scholars, theories, and equations have become household names. In terms of scientists, notable examples include Pythagoras, Aristotle, Galileo, Newton, Planck, and Hawking. In terms of theories, there’s Archimede’s “Eureka,” Newton’s Apple (Universal Gravitation), and Schrodinger’s Cat (quantum mechanics). But the most famous and renowned is arguably Albert …
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Carl Sagan explains the speed of light while riding a bicycle
In this video, Carl Sagan rides a bicycle and talks about the speed of light. “Something funny happens at the speed of light”.
Quasicrystals and Their Real-World Applications: Exploring the Exotic New Family of Materials
Quasicrystals are among the newest and most exciting discoveries in the wider field of materials physics – but to date, many aspects of their exotic physical properties remain entirely unexplored. Since soon after their initial discovery, Dr. Zbigniew Stadnik at the University of Ottawa has made important contributions to our understanding of quasicrystals, including their …
The coldest place in the Universe moves back on Earth
Scientists from the University of Bremen set a new low-temperature record. They cooled matter in a tower to an extremely low temperature: 38 trillionths of a degree warmer than absolute zero which is -273.15°C (-459.67°F). Nowhere in the universe can be any colder, so the coldest place in the Universe moves back on Earth again.
The science of the perfect piano sound
A grand piano has always been viewed as a symbol of class in anyone’s home. The sleek design and polished aesthetics add a look of luxury to any room and when played in the perfect space it can create a phenomenal sound that travels magnificently through your home. There is an unmatched sound that comes …
What is an orbit? [and how does it work] [Explained]
This short video titled “how orbits work” beautifully explains what is an orbit and what you should do to enter into a stable one around Earth, or any other celestial body.
