Why it matters: O2 sensors feed critical data to your ECU, helping maintain the ideal air-fuel ratio for performance, efficiency, and emissions control. Reading the signals: Healthy upstream sensors ...

Apple Watch Ultra 2 vs WHOOP MG after 60 days. Sleep, recovery, workouts, Bevel, battery life, and the truth about WHOOP.

Compare Apple Watch, Garmin, Oura, Samsung, Withings, Huawei, and Evie Ring in the race to bring blood sugar data to ...

Where (and how) you wear your health tracker can impact your data accuracy. Here's what researchers say matters most.

Scientists have demonstrated a new fiber-optic sensing method that detects strain and displacement by reading interference ...

The ionosphere is of great importance to shortwave radio transmissions, since it allows radio waves to be refracted and ...

Scientists have created the first detailed map of smell receptors, revealing the sense of smell is far more organized than ...

The analysis revealed a clear pattern. Neurons are arranged in tightly packed, overlapping horizontal stripes based on the ...

A smarter way to track how you actually feel.

Scientists know that smell depends on a vast library of receptors, each tuned to different odor molecules. But they could not ...

Buying a used car can be a smart move, but only if you know how to spot hidden problems before signing the papers. From OBD-II scans to cold starts and underbody checks, a thorough pre-purchase ...

Dive into The Register's online archive of incisive tech news reporting, features, and analysis dating back to 1998 ...