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The Mars You Never Knew

Four hundred years ago, Mars was a thriving planet with a highly advanced civilization. But in 1619, a rogue planet passed through the solar system, destroying the surface of Mars. In an instant, what had been a warm and nurturing planet, flowing with water, was reduced to the dry and bitterly cold Mars that we know today.

This random act of planetary violence laid waste to hundreds of thousands of years of advanced Martian civilization. Two thirds of the population died when Koya struck. The rest managed to escape to a vast network of...

Over the last century the ECG has been used by clinicians to make major clinical decisions with regard to electric pacing, the use of thrombolytic drugs in acute myocardial infarction and the timing of surgery. In conjunction with a chest X-ray and the echocardiogram it is a fundamental part of the initial investigation of a patient with suspected heart disease. These electrical squiggles have always been difficult for students to understand. In part the problem has been that the formatting of the ECG has only become standard in the last two decades. Some important books have not provided...