After a couple of millennia of fiddling with gears, you’d think there wouldn’t be much new ground to explore in the field of power transmission. And then you see something like an infinitely variable ...

Q: I read your column with interest each Saturday in a local newspaper and was wondering if you would be willing to comment on the pros and cons of continuously variable transmissions (CVT) and ...

The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...

In an industry evolving alongside consumer concerns over rising energy costs, impact on the environment, and, of course, stricter regulations handed down by the government, new technologies are ...

One of the big advantages that traditional gas-powered cars have over electric vehicles is that for people who like to feel the power of an engine, internal combustion is the way to go. Electric cars ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

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In President Trump's plan to freeze fuel economy standards last week, the EPA and NHTSA made a strange statement. They said that two of the main technologies used to improve fuel economy ...