He added an extra mathematical term to Ampere's law and discovered that with what are now called Maxwell's equations there is a free-space solutions in the form of waves.
He found that the wave solutions travel at the speed of light, so he guessed that they were light. This was later proved to be correct. The equations also predicted the existence of radio waves and these were discovered 15 years later.
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Yes, more or less. James Clerk Maxwell predicted that an electromagnetic wave would propagate at the speed of light. Therefore, he also suspected that light was an electromagnetic wave. This was confirmed later.Yes, more or less. James Clerk Maxwell predicted that an electromagnetic wave would propagate at the speed of light. Therefore, he also suspected that light was an electromagnetic wave. This was confirmed later.Yes, more or less. James Clerk Maxwell predicted that an electromagnetic wave would propagate at the speed of light. Therefore, he also suspected that light was an electromagnetic wave. This was confirmed later.Yes, more or less. James Clerk Maxwell predicted that an electromagnetic wave would propagate at the speed of light. Therefore, he also suspected that light was an electromagnetic wave. This was confirmed later.
That it is a part of the electromagnetic spectrum
It is a form of electromagnetic radiation.
The Scottish physicist James Clerk Maxwell (1831-1879) formulated important mathematical expressions describing electric and magnetic phenomena and postulated the identity of light as an electromagnetic action.
James Clerk Maxwell is more than dead, I'd suspect his body is fully decomposed by now. James Clerk Maxwell died in Cambridge, England, on the 5th November 1879, which is over 130 years ago. He died of abdominal cancer at the age of 48.