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A DIY Calorie Counter More Accurate Than a Smartphone

Cars That Think

A 2017 study looked at seven such typical devices, and found their counts were off between 27 and 93 percent , depending on the device. We used the NumPy scientific computing library for storing data in a convenient format, and the Scikit-learn machine-learning library for analyzing motion data from the IMUs.

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Road Test: 2021 Mazda CX-9 Signature AWD

Clean Fleet Report

For even more space, the second row folds flat producing plenty of room for a run to the DIY store or maybe some antiquing. Carbon Edition $42,180. Carbon Edition $44,080. Road Test: 2017 Toyota 4Runner. Road Test: 2017 Nissan Pathfinder. The fronts and outboard second row seats are heated and quilted.

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Road Test: 2022 Ford Maverick XL FWD Hybrid

Clean Fleet Report

One is for driving power, while the other is to start the engine, charge the battery and provides the regenerative braking that converts kinetic energy into electric energy and stores it in the battery when applying the brakes or coasting. Road Test: 2017 Honda Ridgeline. An efficient engine and electric power. First Drive: GMC Canyon.

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