Supernovas!

Supernovas!

Believe it or not, supernovas have been known to humans for thousands of years. That’s not to say that ancient civilizations knew exactly what was happening when they saw them, but they were witnesses to some of the most powerful events in our universe. When certain stars reach the end of their lifetime, they explode

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Bernoulli’s Principle

Bernoulli’s Principle

Daniel Bernoulli was a Swiss mathematician and physicist in the mid-1700s. He excelled in the fields of statistics and probability, but also was influential in applying mathematics to physical mechanics. Particularly, he is known for his work in fluid dynamics, now known as Bernoulli’s Principle. Most simply, Bernoulli’s Principle is a derivation of the conservation

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Can you Freeze Antifreeze?

Can you Freeze Antifreeze?

CAUTION: Antifreeze is a very powerful chemical that, if ingested, can cause serious illness or death. Do not attempt to use it without adult supervision. All appropriate safety precautions have been taken for the filming of this video. If you are from a colder part of the world, then you know how important antifreeze is.

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How to Supercool Water

How to Supercool Water

Water is usually pretty predictable. At standard pressures it will boil at 100˚C and freeze at 0˚C. However, under special circumstances it might surprise you. Dihydrogen monoxide can become supercooled, dropping below 0˚C while maintaining the liquid phase of matter. Here’s how: Acquire distilled or purified water. Fill an empty bottle with tap water (this

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The Coolest Molecules

The Coolest Molecules

CAUTION: This experiment uses dry ice (-109˚F) and liquid nitrogen (-321˚F). Proper safety equipment should always be used when handling these substances. Physics tells us that pressure, volume and temperature are all linked when talking about gases. So what does this have to do with solid carbon dioxide (dry ice) and liquid nitrogen? When dry

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Free Energy or Toy

Free Energy or Toy

Electricity is one of the most useful discoveries of our relatively recent history. It lights the rooms we hang out in, give power to some vehicles and allows for communication across vast distances. In 1800, Italian physicist Alessandro Volta discovered that particular chemical reactions could produce electricity so he constructed the voltaic pile (an early

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Pendulum Waves

Pendulum Waves

You’ve already seen the way a no-flinch pendulum works, so now we are changing it up. This contraption is host to many pendulums next to each other but not touching. When you raise them up and let them go all at once, you can see something truly mesmerizing. They will all start to fall at

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Electric Motor DIY

Electric Motor DIY

An electric motor is a device used to convert electrical energy to mechanical energy. Electric motors are extremely important in modern-day life. They are used in vacuum cleaners, dishwashers, computer printers, machine tools, cars, subway systems, sewage treatment plants, etc, and you can make your own at home! Here’s how: Materials: Copper wire D battery

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How to: Kinetic Sculpture

How to: Kinetic Sculpture

Kinetic sculptures are moving art pieces, that usually do not have a motor, but alternatively use other forms of energy to propel the movement. Wind, water, or an initial manual push are common types of energy which kinetic sculptures harness. The art piece that we are going to make is going to harness energy given

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To Infinity Table and Beyond

To Infinity Table and Beyond

Light, it’s properties, and the ways it can be manipulated are as fascinating as they are beautiful. It can be bent, slowed down, absorbed, and reflected. It turns out that the study of optics looks into all of these different interactions. But what happens when you want to mix the science of optics with a

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America Recycles Day

America Recycles Day

Jack Johnson sang it best in his song “The 3 R’s”. Reduce, reuse, recycle. This is how to live a more sustainable life, and leave a smaller carbon footprint. First, try to reduce the amount of waste you produce. Second, reuse items as much as possible. Third, recycle appropriate waste products as to have them

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Fiber Optics: Continuing the Light Discussion

Fiber Optics: Continuing the Light Discussion

Fiber optics allow for the transmission of information, like the internet and cable TV. They carry information between two places using entirely light-based technology. In a cable, there can be as little as two fibers, or as many as several hundreds. Each fiber is about as thick as a human hair. But how does it

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