This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2H Q11, which involves finding the density of a solid sphere. Students will learn how to use the formula for the volume of a sphere to find its...

If we can use the ideal gas law to find the molar mass of a gas and therefore identify the gas, what can we do with the density of a gas? Well, pretty much the same thing, it just involves one extra calculation, so let's give it a try!

This video shows the process for solving the problem presented in IGCSE A June 2018 paper 1HR Q17, which involves histograms, frequency density, and how they can be used to represent data distributions. Learners will find out how to...

Stories of discovery and invention often begin with a problem that needs solving. Summoned by the king to investigate a suspicious goldsmith, the early Greek mathematician Archimedes stumbles on the principle that would make him famous.

In this video, I work a second example problem using the principle of corresponding states.<b<br/>r/>

-Find the temperature and pressure at which a gas b<br/>ehaves as another gas.

How to find the center of mass of an irregularly shaped, flat object.

For years, astronomers have been unable to find up to half of the baryonic matter in the universe. We may just have solved this problem.

It’s one of the biggest mysteries in science. It makes up the majority of the universe. What is dark energy? What is dark energy made of? What is quintessence? Is Dark energy the cosmological constant?...

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...

The Centroid of an area is the same as the center of mass for objects which have constant thickness and constant density. A general approach to solving centroid problems is to:

1) define an
axis
2) Find equations o
f...

I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn't the reason they...

Maxwell's equations are the simplest way to represent the relationship between the electromagnetic field and it's carrier particle, the photon. Simple does not necessarily mean easy though. Let's dig into what Maxwell's formulas are...

Matter in the hearts of neutron stars – dense remnants of exploded massive stars – takes the most extreme form we can measure. Now, thanks to data from NASA’s Neutron star Interior Composition Explorer...

Moment of Inertia of thin rod

Summary:

By the end of 1905, we had two big new equations in physics. Max Planck’s, Energy equals Planck’s constant times the frequency, and Einstein’s Energy equals the mass times the speed of light squared. A...

Hot metal fragments can be created from power lines, overheated brakes, railway tracks, or any other manner of metal-on-metal action in our industrialized society.



The particles can...

Most galaxies that we know of are spirals, including the Milky Way, but how do they form and keep their shape over billions of years?

Part 2 in our Multiverse series.

This video demonstrates discriminative versus generative learning.
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This clip is from the chapter "Deep Neural Network Overview" of the series "Deep Learning CNN: Convolutional Neural Networks with Python".This section focuses...

In this video, we will cover discriminative versus generative learning.
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This clip is from the chapter "Deep learning: Artificial Neural Networks with Python" of the series "Data Science and Machine Learning (Theory and...