Jonkers explores these early efforts both for what they reveal about the history of science and navigation and as a unique record of the actual changes in the E

Initially, this book reviews the general characteristics of the Earth’s magnetic field and the magnetic properties of minerals, and then proceeds to introduce

Space and time on earth are regulated by the prime meridian, 0°, which is, by convention, based at the Royal Observatory, Greenwich. But the meridian’s locat

Hands-on science in the Age of Exploration. Winner of the John Lyman Book Award in Naval and Maritime Science and Technology by the North American Society for O

For the general public, magnetism often seems more the province of new age quacks, movie mad scientists, and grade-school teachers than an area of actual, ongoi