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Scientific Method: Measuring Mass
- To measure mass, a balance scale, a balance beam, or an equal-arm balance is usually used.
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Build It Bigger: Kinetic Madness
(1:57)
Roller coasters use physics to create breathtaking and terrifying thrills in amusement parks across the world. Watch a video from the Discovery Channel.
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How Dry Cleaning Works
(1:32)
Dry cleaning is an amazing technology, but do you know what actually happens behind the counter? Find out how dry cleaning works in this HowStuffWorks Video.
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How Fireworks Work
(1:18)
Fireworks have a special and beautiful magic all their own. Watch this HowStuffWorks video to learn how they make such incredible colors and designs.
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When Will the World Run Out of Oil
(2:50)
Watch this video about oil drilling on HowStuffWorks. The world continues to increase its demands for oil and oil drilling, but when will we run out of oil? See how oil drilling works in this video from Reuters.
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Invention Nation: Solar Panels
(1:22)
Take a closer look at the technology used to build solar panels. Learn more about solar cells in this video.
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Exploring Sound: Echo Location
(2:21)
Bats hunt by echolocation. The best condition for an echo is a hard surface. Some materials absorb sound. Curved surfaces are used to reflect sound over a large area.
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Wind Power: The World's Fastest Growing Energy Source
(2:13)
Watch this video about wind power, the world's fastest growing energy source, on HowStuffWorks. With the rise in natural gas and oil prices, wind power is the new hot technology. Learn about the future of wind power in this video from Siemens.
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How Blue Diamonds Work
(1:29)
Watch this video about how blue diamonds work on HowStuffWorks. A flawless, 5-carat blue diamond ring is expected to fetch more than $6 million at a Hong Kong Sotheby's auction - this is more than typical gems and jewels two or three times its size.... More »
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