Experimental strain sensor uses cuts to combine range and sensitivity

Motion-measuring strain sensors have many uses, such as tracking a person's physical activity, or reading their blood pressure. A new such device could be particularly useful, as it combines high sensitivity with a wide range of detectable motion.

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ZeroWheel adds electric resistance and assistance to the humble ab wheel

"Ab wheels" are widely used to build core strength, with some models offering a limited amount of resistance via spring mechanisms or elastic bands. The ZeroWheel takes things further, however, by incorporating an adjustable-output electric motor.

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High-tech motorized Ella could be the Tesla of strollers

Although pushing a baby in a stroller certainly is easier than carrying it, some effort still is required. The Ella stroller is designed to make things easier, with electric-assist motors, a Hands-Free mode, and various other "smart" features.

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