Ken Stewart
Contributor
Ken Stewart is a retired educator of 31 years, with an honours degree in chemistry, physics, and mathematics. He brings extensive experience as a contributor to Encyclopædia Britannica from his many years of developing multiple resources for several major publishing companies worldwide, both in print and in online platforms.
Primary Contributions (32)
Cross product, a method of multiplying two vectors that produces a vector perpendicular to both vectors involved in the multiplication; that is, a × b = c, where c is perpendicular to both a and b. The magnitude of c is given by the product of the magnitudes of a and b and the sine of the angle θ…
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