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Your Emails: What's the tech behind continuously variable transmissions?

Brian Cooley explains the tech of CVTs and why they're not used for more performance applications.​

By November 12, 2015


Car Tech 101: Variable valve timing explained

Few innovations under the hood have become as ubiquitous as variable valve timing. Automakers brag about it all the time, but seldom explain it. So Brian Cooley's here to do just that.

By April 28, 2014


Physicists prove Einstein's 'spooky' quantum entanglement

Multiple research teams claim to have conclusively demonstrated quantum entanglement, which had been disdainfully dubbed "spooky action at a distance" by Albert Einstein.

By November 19, 2015


How to buy a new phone: The CNET smartphone buying guide

The most important things to know when shopping for a cell phone.

By November 20, 2015


These 5 tips will change the way you brew coffee at home

Even a drip coffee machine can brew a cup with an artisanal flavor.

By November 4, 2015


Explore the Milky Way at 46 billion pixels

A 194-gigabyte image is the largest astronomical image ever created, showing a swathe of the Milky Way galaxy across the southern sky.

By October 21, 2015


'Peanut'-ize yourself with a Charlie Brown look-alike generator

Join the world of Snoopy, Schroeder and Linus with an online Peanuts character generator that turns out your comic-strip avatar.

By September 22, 2015


Brew fancy with these premium coffeemakers

Whether its the best drip you can make at home or robotic smarts there's a slick coffeemaker here for you.

By August 19, 2015


Nokia sells Here maps business to carmakers Audi, BMW and Daimler

The deal shows how important mapping and location data are to the future of the car industry, particularly in the coming era of self-driving cars.

By August 3, 2015


5 apps to help you save water

Learn about water conservation, figure out how much water you're using...and how to stop using so much.

By June 30, 2015