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How are tunnels built under cities and mountains? Watch this episode of "How Does it Work?" to discover the engineering that makes tunnels possible.
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How Does it Work? - Thermal Camera
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How Does it Work? - Solar Panels
How do solar panels turn sunlight into electricity? Watch this episode of "How Does it Work?" to see how energy from the sun powers your devices.
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How Does it Work? - Spider's Web
How does a spider spin its web and catch prey? Watch this episode of "How Does it Work?" to discover the secrets of web building.
