Search results for “carbon atoms”

Are carbon nanotubes safe or harmful?

Carbon nanotubes, or CNT, are being used to make products stronger, lighter, faster, and more efficient. But are they safe? A growing body of research is raising concerns over the hazards presented by some forms of the material. As ever though, the risk to health depends on who is exposed to what

Atoms: The Space Between

This video segment adapted from A Science Odyssey uses models, vivid descriptions, and analogies to explain the structural integrity of matter at the atomic level. You wouldn't know it by looking at it, but the atoms that make up a solid piece of iron contain more space than stuff. How is it then th

08 The Atomic Shell

In this screnncast, Bohr's atomic model is compared with the energy stage model. Using the aluminum atom as an example, the different energy levels are explained and how they are to be filled with electrons are described. Original: "Wolfgang Dukorn" Original: German. All translations in this video

Carbon-Fiber Car of the Future

In this video segment adapted from NOVA, hear physicist and energy expert Amory Lovins explain how to make more efficient cars by making them lighter and more aerodynamic. Explore how the use of carbon fiber can reduce weight without reducing size or durability, and learn about some manufacturing ch