The story picks up where we left off last time, with Einstein writing the president of his new homeland, the United States, urging him to build a nuclear weapon before Hitler. This is the tale of the most destructive force humans have...

There was physics before Einstein in the same way that there was biology before Darwin. Einstein didn’t just add some new ideas to physics. And he didn’t just add a unifying framework for doing physics, like Newton. Einstein took what...

Take some time with us to look back on a few of our episodes about scientists who deserve a little more recognition than they got.

In this video Paul Andersen explains how matter, like light, can be treated as both a particle and a wave. Louis de Broglie proposed that matter could act as a wave and described the wavelength of matter as a function of Planck's...

Scientists have confirmed Albert Einstein's 100 year-old theory of gravitational waves, detected using a massive system of instruments called the Laser Interferometer Gravitational-wave Observatory (LIGO).

Why does the universe have an upper speed limit on the speed of light? Why isn’t the top limit infinite? Or what if the speed of light was not constant but changed in different reference frames?...

Is it possible that what we have invented as dark matter to explain the motion of stars in galaxies and clusters is a figment of our imagination? Could it be that Einstein’s General Relativity has a flaw? Does...

Standard Model of particle physics, Explained simply. The structure of matter, that is, everything you see in the universe – you, me, the earth, stars happens to be made up of some core fundamental particles...

What is string theory? When string theory is simplified - it can answer the question "Why do we exist?" First you must accept that there are two worlds we live in - the world of the large, the world we can see, which...

Einstein's Special Relativity Explained Simply - no math



This entire revolution in physics started with a simple thought experiments, in the prolific imagination before Einstein even...

SUMMARY

Albert Einstein was ridiculed when he first published his theory. People thought it was too weird and radical to be real. Einstein wasn’t satisfied with his theory either, because the theory did not...

Summary:

The information that we know about the universe comes almost exclusively from the analysis of electromagnetic radiation. But there is only so much this light can reveal because there is an inherent...

The closest thing we have to an all-encompassing framework that explains all particles and forces is represented by the Standard Model of particle physics. But this model is flawed because it does not...

Is time travel possible? Of course it is…into the future. You and I are travelling in time right now. And travelling into the far future also is also a reality using Einstein’s principle of time...

Quantum Immortality - is it real? Quantum mechanics shows that all particles are not particles at all but really waves of probabilities. There are two common interpretations of how these waves become distinct- one...

Summary:

How to visualize Minkowski four dimensional spacetime and relativity using light cones and world lines. These are three spatial dimensions and one time dimension in the universe. With these 4...

Bern, the capital of Switzerland since 1848, boasts a rich history and unique townscape dating back to its founding in 1191, with its compact old city nestled on a rocky ridge by the Aare River. Highlights include the late Gothic Minster...

“What Is a Physicist?” introduces Albert Einstein, Sir Isaac Newton, and the study of physics.

Why doesn't anything go faster than the speed of light? Want to see the world through the eyes of a scientist?

How the universe works: a black hole is surprisingly hard to fall into.

...because of Newtonian physics. But Albert Einstein and relativity had other ideas

After explaining the science of the process, Dr. Boyd performs the fun and colorful Skittles Diffusion Demonstration.

Dr. Boyd gives the physics definition of density, then walks you through a demonstration to show how liquids with different densities can form multiple liquid layers in a container.

Watch what happens when Dr. Boyd unexpectedly gets his hands on some dry ice! Minute 0:30 – Explanation Minute 3:04 – Demo 1: Dry Ice In Water Minute 4:05 – Demo 2: The Vibrating Quarter Minute 4:51 – Demo 3: Floating Bubbles Minute 5:56...