Can you change the color of oudin coil sparks?

Can you change the color of oudin coil sparks?

An Oudin coil can take the energy out of your outlet and create sparks you can see! It’s sometimes called a mini tesla coil. The sparks on them usually look violet. If you know the visible light spectrum, you might know that violet light is the most energetic color of light.  The oudin coil looks

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Stellar Evolution Part 3: Supergiant and Supernova

Stellar Evolution Part 3: Supergiant and Supernova

Most stars on the main sequence are relatively average: not too big and not too small. But every so often, a star begins its life as an absolute monster: a supergiant. These supergiants do join the main sequence, but due to the sheer amount of gravitational force and pressure, they burn through the hydrogen in

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Stellar Evolution Part 2: Main Sequence Stars

Stellar Evolution Part 2: Main Sequence Stars

When a protostar’s core reaches 15,000,000 degrees Celsius, nuclear fusion begins in its core. This ignition marks the star’s birth as it becomes a main sequence star. Main sequence stars have a ton of variety. They range from cooler red stars to hotly burning blue ones, and their size can range from a fraction of

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Stellar Evolution Part 1: Nebulae and Protostars

Stellar Evolution Part 1: Nebulae and Protostars

In the vast emptiness of space, there are floating clouds of gas and dust called nebulae. These clouds are stellar nurseries, filled with material that will one day become multiple solar systems. When part of a nebula is slightly more densely packed than the rest, gravity is stronger in that region. It begins to pull

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Making Nitrogen Balloons Float

Making Nitrogen Balloons Float

When you blow up a balloon with your breath, you’re filling it with a mixture of nitrogen, oxygen, and a little bit of carbon dioxide. And when you let go of it, it falls down to the floor. Why does it do this? And how could we prevent it from doing so? Think of it

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Lights and Lasers: How the Glow Wall Glows

Lights and Lasers: How the Glow Wall Glows

One of the most popular classes at AstroCamp is Lights and Lasers, where students learn about the different energies and properties of light. The Lights and Lasers room is easily recognizable because of its Glow-in-the-Dark Walls. Once you turn the lights off, these awesome walls glow a vibrant green, slowly dimming until you shine light

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Black Holes Explained (Sort of)

Black Holes Explained (Sort of)

Black holes are a confusing topic in astronomy. You’ve heard about them starting from a young age, but whenever you ask someone for more information about them, there’s a whole lot of “I dunno”s. The truth is, black holes have been romanticized by science fiction, when in fact they are nothing more than an oddity

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What is Ferrofluid?

What is Ferrofluid?

Back in the early 1960s, a fledgling NASA was presented with lots of new problems. Going to space was unlike anything humans had ever done, and engineers and scientists were constantly searching for answers to issues they had never even considered before. One of these problems was dealing with the properties of a liquid in

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Ready, Set, No Flinch Pendulum! Thats Science!

Ready, Set, No Flinch Pendulum! Thats Science!

The conservation of energy tells us that a bowling ball won’t swing higher than the initial height if there is no force added. But should we still believe that in a high risk situation? We are putting the laws of physics up to the test. Caution: Do not try this at home without parental supervision.

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Freezing Liquid Nitrogen in a Solid

Freezing Liquid Nitrogen in a Solid

Liquid nitrogen is super cold, -320 degrees Fahrenheit, but what if we could cool it down further or even freeze it into nitrogen ice? Watch this video and read more to find out! The solution lies in a summer day at the pool, sweat, or at least something tying them: evaporative cooling. When you get

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The Cleaning Secret of Bleach

The Cleaning Secret of Bleach

If you’ve ever done laundry, you know that bleach stains dark clothes and brightens light ones, but why does it do that? Well, the answer is all down to chemistry. Inside the dyes we use in clothes, food, etc., there are chemicals called chromophores. These chromophores reflect a specific wavelength of light, causing them to

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