Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Believe it or not, not all USB ports yield the same amount of power, but here's a $10 gadget that can show you which ones you ...

Accurate measurements of surface currents are crucial for coastal monitoring, rip current detection, and predicting the path of pollutants. Several methods exist to measure surface currents, some of ...

This simple tools allows you to troubleshoot nearly any RV or camper problem, potentially saving you a lot of time, hassle, and money in replacement parts.

If your new iPad just started acting up, don't panic. You can actually fix most common iPad issues without paying for repairs ...

Oscilloscopes detect, analyse, and measure the electrical signals of an input and present the data as waveforms on the display. While observing a circuit, the oscilloscope screen depicts an array of ...

Measuring conditions in volatile clouds of superheated gases known as plasmas is central to pursuing greater scientific ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.

This easy test can help you get a gauge on your VO2 max—without a watch. Every day as I peruse through the mountain of ...

Every generator and power station has two numbers listed on it: starting watts (sometimes called surge or peak watts) and ...

How to use Windows 11's hidden battery health tool to diagnose your PC (before it's too late) ...