Quadraphonic sound was perhaps the first serious attempt to bring surround sound to home audio systems. The format was introduced in the 1970s and worked by adding two extra sound channels to the left ...

Lipoprotein (a) is a low-density lipoprotein that transports cholesterol in the blood. The lipoprotein (a) test — or Lp(a) test — determines the level of this lipoprotein in the blood, and its results ...

The Rorschach test is a psychological test designed by psychiatrist Hermann Rorschach in the early 1900s. The test involves presenting a subject with images of inkblots; the person then describes what ...

From the January 2002 issue of Car and Driver. The American smorgasbord of automotive offerings includes more than 300 nameplates to choose from, and yet the editorial appetite is unfulfilled. Why?

Rediscover the quadraphonic magic of Beaver & Krause and The Modern Jazz Quartet with Rhino’s Quadio Blu-ray reissues—immersive 4-channel mixes from the 1970s, now playable on modern 5.1 systems.

Stellar four-channel music series rescues lost multi-channel mixes from the dawn of surround sound. Despite quadraphonic sound’s commercial failure—hampered by competing vinyl formats and unreliable 8 ...

"hilbert_stereo_####taps" plugins are modifications of SWH's "hilbert_1440" plugin, with more filter taps and two input channels. Those plugins are responsible for 90-degrees phase shift necessary for ...

In the remote work era, reliable Wi-Fi is a must. From testing network performance to locating nearby connectivity, these are six of the best speed test apps to consider. A speedy and stable internet ...

If you’re experiencing a sluggish internet connection, it’s probably time to check the speed. We’ll show you several ways to measure the speed of your internet connection using on-board tools in ...

If it seems like everyone in your run club is talking about VO2 max these days, we wouldn’t be surprised. This metric—which is essentially a measure of your cardio fitness—is a zeitgeisty topic, ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

A new approach to a routine blood test could predict a person’s 30-year risk of heart disease, research published Saturday in the New England Journal of Medicine found. Subscribe to read this story ad ...