Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
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Cadmium is a natural metal and the leading component in rechargeable batteries and solar cells. It is also highly toxic and heavily regulated.
Discovered in the early 1800s from a chunk of smuggled platinum ore, rhodium is the most valuable precious metal on the planet today, used mainly for keeping car emissions in check.
We'll show you both a quick and dirty way, and a precise, more complicated formula for converting a Celsius temperature to Fahrenheit (and vice versa).
If you have trouble sleeping you might have been told to get a white noise machine. But white isn't the only color of noise out there.
By Talon Homer
Scientists have come up with a new formula to describe the shape of every egg in the world, which will have applications in fields from art and technology to architecture and agriculture.
Thorium is in many ways safer than uranium for nuclear power production. But is it safe enough to bet on for our energy future?
The lava-like material that formed after the Chernobyl nuclear disaster is a deadly example of corium, a hazardous material created only after core meltdowns. Five minutes next to it can kill a human.
First discovered in the late 1930s, muons are passing through you and everything around you at a speed close to light, as cosmic rays strike particles in our planet's atmosphere. So what are muons and how are they informing the new physics?
Magnetism is at work all around you. Even our Earth is a giant magnet!
A perfect storm of circumstances combined to create what one pool industry expert is calling "poolmageddon." Why? Because there's a major lack of chlorine in the U.S. right now. How will it affect the pool season?
Sir Isaac Newton's Law of Universal Gravitation helps put the laws of gravity into a mathematical formula. And the gravitational constant is the "G" in that formula.
By Mark Mancini
A multiplication table is an easy-to-use grid of numbers that can help you learn to multiply quickly by using the chart and, eventually, your memory.
Adrenochrome has been linked to schizophrenia and the LSD counterculture movement. Now QAnon conspiracy theorists say it's part of a child sex-trafficking cult. So what's the truth behind this chemical compound?
Rational numbers can be expressed as the ratio of two integers, while irrational numbers, such as square roots, cannot. So, why does the difference matter?