A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...

We are all familiar enough by now with the succession of boards that have come from Raspberry Pi in Cambridge over the years, and when a new one comes out we’ve got a pretty good idea what to expect.

In the world of social media, “keeping receipts” refers to the practice of storing evidence that may come in handy for a callout post at a later date. For [Teddy Warner], though, it’s more applicable ...

Robotics is a fascinating field that has come a long way in recent years. What was once cutting-edge and prohibitively expensive for consumer-grade projects has rapidly become accessible to the hobby ...

Here are the best budget fitness trackers to help you smash your New Year's resolutions, whether you want to track your workouts, improve sleep, run a marathon or take up swimming. When you purchase ...

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The Samsung Galaxy Watch Ultra (2025) is part of the Smartwatches & Fitness Trackers test program at Consumer Reports. In our lab tests, Smartwatch & Fitness Tracker models like the Galaxy Watch Ultra ...

The Amazfit Balance 2 is part of the Smartwatches & Fitness Trackers test program at Consumer Reports. In our lab tests, Smartwatches & Fitness Trackers models like the Balance 2 are rated on multiple ...