CR's experts pick the best portable solar panels and battery chargers to power devices like phones and laptops, plus back-up batteries and power stations.

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Your phone’s battery could drain within a couple of hours while flipping through Spotify and navigation in the car. That’s why it’s a good idea to have a backup charger with you wherever you go.

Abstract: In this article, we present an efficient implementation of the spectral-domain method of moments (SD-MoM) for the analysis of periodic multilayered structures in the case where asymmetric ...

We compare mummy vs rectangular shaped sleeping pads to help you pick the right one for the best night’s sleep When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

A dish of living brain cells has learned to play the 1970s arcade game Pong. About 800,000 cells linked to a computer gradually learned to sense the position of the game's electronic ball and control ...

Proof load testing of existing reinforced concrete bridges is becoming increasingly important as the current bridge stock is aging. In a proof load test, a load that corresponds to the factored live ...