James Clerk Maxwell, a Scottish physicist and mathematician, was a remarkable scientist. He brought together a large number of equations, experiments, and observations related to electricity and magnetism. and showed them to be different manifestations of the same phenomenon. Maxwell produced a set of equations that explain the properties of magnetic and electric fields, and help show that light is an electromagnetic wave. He also described the nature of Saturn's rings as numerous small particles, rather than a solid or fluid ring. Maxwell's contributions in the fields of kinetic theory and thermodynamics are many. He is even believed to have created the first true colour photograph. His contributions played an important role in the advances made in 20th century physics.
He was famous as a mathematician and geographer. Eratosthenes produced a reliable, logical method to discover prime numbers. It's known as the sieve of Eratosthenes, and is still important in modern number theory in an updated form. Assuming that the Earth was a sphere, Eratosthenes calculated its size with good accuracy. He also calculated the tilt of Earth's axis fairly accurately. Eratosthenes produced the first map of the world which used meridian lines and parallel lines. These were similar to our modern lines of latitude and longitude. This great scientist can be said to have invented geography. In fact, today we still use the word he invented for this new discipline. Geo' was Greek for Earth' and 'graphy' meant 'field of study." Eratosthenes also wrote books on philosophy, mathematics, astronomy, history, comedy, and poetry. His all-round knowledge made him the ideal choice for the most prestigious job an academic could en