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Carbon Cycle and Global Warming
Carbon Cycle and Global Warming

The flow of carbon on our planet, known as the carbon cycle, is amazingly complex. Here's a quick look at how carbon flows among different areas on the Earth and how humans have potentially contributed to global warming.

Airplanes - How do they fly?
Airplanes - How do they fly?

Have you ever wondered how an airplane flies? This video explores the basic physics behind how aircraft fly. Hopefully the next time you find yourself cruising along in an airliner, miles in the sky, you'll appreciate the wonders of flight.

Jet Engines - How do they work?
Jet Engines - How do they work?

Jet engines help airliners fly across continents. They power military aircraft faster than a speeding bullet. Have you ever wondered what gives a jet engine its power? This video takes a closer look at how turbofan engines operate.

Engines - Internal Combustion Explained
Engines - Internal Combustion Explained

Powering everything from lawnmowers and motorcycles to airplanes and cars, internal combustion engines are all around you. Learn the basics behind how a gasoline engine produces power from fuel.

Light Bulbs - How do they work?
Light Bulbs - How do they work?

You walk in a room, flip the switch and the lights turn on. Have you ever wondered how a light bulb produces light? This video takes a simple look at how incandescent bulbs work.