Mazz Media
Forces
Real World Science: Force is one of a series of videos that encourages children to explore the world of science in their immediate surroundings. Through observation and experimentation, students will learn properties of forces, Newton's...
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Electric motor. This consists of a loop of wire that is free to rotate in a magnetic field (yellow arrows).
The loop is attached to a power source (left), which drives a current (blue arrows) around the wire. The loop is connected to the power source through a commutator, a pair of half rings, which reverses the flow of current when the loop...
Getty Images
Electric motor. This consists of a loop of wire that is free to rotate in a magnetic field (yellow arrows).
The loop is attached to a power source (left), which drives a current (blue arrows) around the wire. The loop is connected to the power source through a commutator, a pair of half rings, which reverses the flow of current when the loop...
Getty Images
Plasma energy. Plasma is a gas in which some of the particles are ionized, which means it is electrically conductive and responds to electromagnetic fields
Plasma energy. Plasma is a gas in which some of the particles are ionized, which means it is electrically conductive and responds to electromagnetic fields
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Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights and starry sky, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights and starry sky, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Getty Images
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Getty Images
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights behind cloud, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights behind cloud, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights, Karasjok, Norway, impressive display, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, impressive display, February 2008
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Aurora borealis, Northern Lights and starry sky, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights and starry sky, Karasjok, Norway, February 2008
Getty Images
Aurora borealis, Northern Lights, Karasjok, Norway, impressive display, February 2008
Aurora borealis, Northern Lights, Karasjok, Norway, impressive display, February 2008
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Aurora borealis, Northern Lights over houses, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights over houses, Karasjok, Norway, February 2008
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Aurora borealis, Northern Lights over woodland, Karasjok, Norway, February 2008
Aurora borealis, Northern Lights over woodland, Karasjok, Norway, February 2008
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Vivid Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Vivid Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
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Vivid Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Vivid Aurora borealis, Northern Lights, Karasjok, Norway, February 2008
Getty Images
Electricity shown as the flow electric charge. This can occur naturally as lightning, for example, or be demonstrated with plasma globes
Electricity shown as the flow electric charge. This can occur naturally as lightning, for example, or be demonstrated with plasma globes
Physics Girl
Are MRIs Safe?
We know about radiation from airplanes, and x-rays, but are MRIs considered safe? An informative video offers an simplified overview of how an MRI works. Then a comparison between MRIs and fMRIs opens new understanding. Finally it...
Physics Girl
How to Shrink a Quarter with Electricity
Electrocuting metal until it shrinks sounds crazy, but it happens! Part of a larger physics playlist an intriguing video explains how an electromagnet shrinks any metal coin. The narrator discusses the electric and magnetic forces as...