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 ...

Hacker News user xnx has recreated 'Against the Run,' a rotating clock face with a fixed second hand at 12 o'clock, near the Welcome Center at the Massachusetts Institute of Technology. From a ...

Tornadoes do occur in the Southern Hemisphere, albeit at a greatly reduced frequency than in the Northern Hemisphere, primarily because it includes the U.S., which hosts about 75 percent of the ...

Gerhardt Meurer, from the International Centre for Radio Astronomy Research, and colleagues investigated a large number of galaxies ranging from small dwarf irregulars to massive spirals, with ...

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 ...