What is Escape Velocity?
What is Escape Velocity?

Escape Velocity is probably something you’ve heard on a TV show, or maybe you learned about it from NASA talking about their newest spacecraft. It is a commonly discussed term, but it isn’t the easiest thing to understand. Imagine you’re in a strange universe where only the Earth exists. The only gravity comes from its center,

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What is Jacob’s Ladder?
What is Jacob’s Ladder?

If you’ve taken our Electricity and Magnetism class, you’ve seen this device before! You press a button and an electric arc rises to the top of two tall wires. This is the Jacob’s Ladder! But what’s happening here?  The base of the Ladder is a transformer — a device that changes an incoming voltage. In

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Measuring the Brightness of Stars
Measuring the Brightness of Stars

There are countless stars that we can see in our night sky, and all of them are unique. Some are dim, barely visible without a telescope. Others are bright and can be seen even in the most light-polluted areas. We measure the brightness of these stars using the magnitude scale. The magnitude scale seems a

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What in the World is a Super Blood Wolf Moon?
What in the World is a Super Blood Wolf Moon?

On January 20, around 8.30 PST, the Earth is going to pass directly between the moon and the sun. This is normally the time when the moon would be full, reflecting the sun’s rays back to us on Earth with all of the side facing towards us. But the Earth’s shadow is going to fall

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Asteroid to Meteorite to Crater
Asteroid to Meteorite to Crater

Every day, about 40 tons of space rocks reach the top of Earth’s atmosphere. These asteroids come in many different sizes and have been floating around in space for billions of years. Once they reach the Earth, however, they become meteors — more colloquially known as shooting stars. Friction with the air causes the rock

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