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Can You Pass This Moon Phases Quiz?

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We humans have always had a profound connection to the moon, but do we really know it? Test your knowledge of the various phases our little neighbor goes through, how those phases may actually impact us, all while you enjoy other fun lunar facts along the way!

How to Use a Multimeter

home.howstuffworks.com/volt-ohm-milliammeter.htm

A volt-ohm-milliammeter, or VOM, is typically used for more serious electrical troubleshooting and repairs. Find out why to add a VOM to your toolkit.

For the Benefit of All: The NASA Quiz

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The National Aeronautics and Space Administration has been exploring space for more than 50 years. How much do you know about the scientists, engineers, pilots and machines that carried America into space?

What is the origin of life on Earth?

science.howstuffworks.com/life/evolution/origin-of-life-on-earth.htm

What is the origin of life on Earth? Learn about theories of evolution and the origin of life on Earth at HowStuffWorks.

What Is a Deep Cycle Battery, and How Does It Differ From a Standard One?

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What is the difference between a normal lead-acid car battery and a "deep cycle" battery? I have a trolling motor on my boat and I don't see why I can't use my car's battery with it rather than spending another $80 on a deep cycle battery.

How Power Grids Work

science.howstuffworks.com/environmental/energy/power.htm

Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. There are good reasons the power grid distribution system works the way it does, though it can lead to some big problems.

How big does a meteor have to be to make it to the ground?

science.howstuffworks.com/question486.htm

How big is a shooting star? Do they land on earth or do they burn up? Learn how what tiny particles of space dust have to do with meteors.

Space Exploration Pictures

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These space exploration pictures show you how mankind has explored the vastness of space. Check out these space exploration pictures.

Turns Out Earth's Pulse 'Beats' Every 27.5 Million Years, But Why?

science.howstuffworks.com/environmental/earth/geophysics/earths-pulse.htm

Researchers have been asking this question for almost a century and now we're a little closer to the answer. Something else to ponder: Every 27.5 million years there is usually a mass extinction.

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