If I roll a pair of dice and you get to bet on one number, what do you choose? The smart choice is 7 because there are more ways for 2 dice to come up 7 than any other number. Well, it turns out that you can apply the same logic to...

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...

What is the Electroweak force? Electroweak theory explained: At the moment of the Big Bang, all 4 fundamental forces were probably the same. But as temperatures and energies lowered, the forces separated into...

Physicists know how to use the equations of quantum mechanics to predict things, but don't really understand what is fundamentally going on.



The primary challenge is that according to the...

Miss Palomine explains that a scientist makes predictions based on observations, made either by himself or by other scientists. She defines both words and gives examples.

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...

In this video, the teacher explains how to use observed data to predict unobserved data using scatter plots and the line of best fit. They emphasize the importance of not letting outliers influence the line and demonstrate how to draw...

Dark matter is an invisible matter that occupies more than half of the space of the observable universe but cannot be detected directly as it doesn’t interact with electromagnetic radiation, like visible light and gamma rays. One of the...

Dark matter is an invisible matter that occupies more than half of the space of the observable universe but cannot be detected directly as it doesn’t interact with electromagnetic radiation, like visible light and gamma rays. One of the...

A curious pre-school child asks questions to a big kid about how weather works. Every answer is enlightening yet leads to another question. The little child learns that wind is air that moves, that may be gentle or strong and even...

Brian Greene, Columbia University physicist and co-founder of the World Science Festival, explains how today's physicists and mathematicians use an Einsteinian formula to explain the universe that Einstein himself originally thought was...

Since the very beginning of quantum mechanics, a debate has raged about how to interpret its bizarre predictions. And at the heart and origin of that debate is the quantum jump or quantum leap - the seemingly miraculous and instantaneous...

“A moving arrow is at rest.” This is obviously a nonsensical contradiction. But Zeno, a Greek philosopher famous for his metaphysical trolling, devised a paradox whose conclusion is just this. Here’s how it goes: if you look at an...

In this video Paul Andersen explains how the charge distribution can be affected my electric forces produced by a charged object. In an insulator charges are fixed but in conductors the charges can move. Induction occurs when the...

Developmental disorders in children are typically diagnosed by observing behavior, but Aditi Shankardass suggests we should be looking directly at brains. She explains how one EEG technique has revealed mistaken diagnoses and transformed...

Inside a cylinder that is about the size of a roll of paper towels lives a circuit board filled with sensors. It's called a dropsonde, or ""sonde"" for short. It's a work horse of hurricane forecasting, dropping out of ""Hurricane...

After many centuries of pure observation, it finally became time for mankind to start doing some science to figure out the dimensions of the Earth and other nearby objects. What were these early experiments? What did they tell us? Let's...

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...

Quantum physics simplified. Are Consciousness and Free Will linked to quantum mechanics? The double slit experiment explained. What is the difference between observation and measurement? Since Quantum Mechanics...

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...

What is reality? What is the standard model trying to tell us? Are we living in the 11 dimensions of string theory?



The holy grail of physics is a theory of everything. It may show the...

Einstein Field equations explained intuitively and visually: Isaac Newton changed our paradigm by connecting earthly gravity, with the movement of heavenly bodies. He formulated an equation that is...

Dark energy is different than dark matter. They are both labeled dark because we don’t know what they are. Dark matter does not absorb, reflect or emit any light. It is inferred to exist only because of its...

In this video students will observe and measure an object in motion to show how patterns can be used to predict future motions. As a result of a hands-on experiment they will observe and explain patterns of motion. This program...