Physical Science
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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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.
Numerators and denominators, oh my! It sounds complicated, but learning how to multiply fractions is easy. It just takes three simple steps.
Dividing fractions is easy once you learn a couple of rules and remember three words - keep, change and flip.
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A perfect square is a number, but it can also be explained using an actual square.
Real numbers are the opposite of imaginary numbers and include every number you can think of.
The fields of sciences and mathematics are capable of some amazing things and answering some of the biggest and most puzzling questions on the planet. But what may shock you is that some of the most mundane and seemingly simple questions have no real confirmed answers from scientists. From how a bike works to how [...] The post 15 Seemingly Simple Questions We Don't Know the Answer To appeared first on Goliath.
By Jack Sackman
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.
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We'll show you both a quick and dirty way, and a precise, more complicated formula for converting Celsius to Fahrenheit (and vice versa).
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.
The main function of the Krebs cycle is to produce energy, stored and transported as ATP or GTP, to keep the human body up and running.
Many people get speed and velocity confused. It's no surprise because the terms are often used interchangeably. But they're not quite the same thing. So how do you find the velocity of an object?
By Mark Mancini
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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.
And it'll take XIV minutes flat.
By Alia Hoyt & Desiree Bowie
Metallurgy involves studying how metals behave and using that understanding to manipulate and shape them into various forms.
If you're already familiar with subtracting fractions, learning how to add fractions will be a piece of cake for you. And if you haven't learned how to subtract fractions yet, don't worry - we've got you covered!
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Converting kilogram measurements into pounds is not hard. We'll show you the textbook way plus two quick-and-dirty shortcuts.
By Mark Mancini
We all have favorite colors. But have you ever considered why you like one color more than another?
Most of the world uses meters, apart from the U.S. and a few other countries. So what's an easy way to convert from meters to feet and vice versa?
By Mark Mancini
Finding the range of a set of numbers is an easy subtraction problem!
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Both degrees and radians represent the measure of an angle in geometry. So, how do you convert one to the other?
By Mark Mancini
Your eyes aren't playing tricks on you. Those mountains way off in the distance really do look blue, and it's because of how light wavelengths scatter in the atmosphere.
By Mark Mancini
Superacids are those with an acidity greater than sulfuric acid. So which is the most super of superacids and what exactly is it used for?
The answer to the question "Does time exist?" may seem obvious, but is it? And what if time doesn't exist, but is merely a human construct?
By Sam Baron
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With a little patience, you can master this trick of converting binary code to decimals - and have fun doing it!
By Mark Mancini
Modern color theory got its start with, believe it or not, Sir Isaac Newton, who also discovered a little thing called gravity and invented calculus.