A simple internet speed test can tell you a lot about your home's network and whether you're getting your money's worth.

Corrections & clarifications: A previous version of the story misstated a measurement of Internet speed. We know what “slow” internet is like: videos buffer, downloads lag and a single page can take ...

Are "internet speed tests" (like those from Ookla) a very poor measure of wireless internet performance? Are they just too crude to give a realistic appraisal of real WLAN performance?

A crankshaft may experience irregular rotational speed patterns caused by a combustion engine’s discrete firing process. These excite components of the driveshaft, which causes rotational vibrations ...