In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

The iA63 is iHome's latest app-enhanced alarm clock FM radio for iPhone and iPod touch - with a twist... literally. The flexible rotating dock lets you control the iPhone normally - or watch videos in ...

BALTIMORE, Feb. 18 (UPI) -- U.S. astronomers using the Hubble Space Telescope say they've precisely measured, for the first time, the rotation rate of a galaxy. Based on the clock-like movement of its ...

Hurricanes and low pressure systems do spin counter-clockwise in the northern hemisphere. Tornadoes usually do, though not always. The behavior of the intense thundershowers that produce tornadoes ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. As bizarre as Venus appears today --- a hellish ...

There are no rules stating figure skaters must turn either clockwise or counterclockwise, and the difference in preference was on full display during the 2022 Winter Olympics. Announcer Johnny Weir ...