Place a thermometer inside a glass of water, place the glass on the middle shelf of the refrigerator and let it sit for at ...

This device from SwitchBot measures temperature, humidity, carbon dioxide levels and more to keep my home safe during the ...

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds ...

For the $5 I'd paid for it, that would have been cool. But alas, apart from being a useless scam, it's quite innocent. I tore mine apart, and inside is very little. Inside the plastic box is a circuit ...