In contrast to mechanical waves, electromagnetic waves can travel without a medium. This implies that electromagnetic waves can pass not only through solid objects like air and rock but also through empty space.
James Clerk Maxwell, a Scottish scientist, created a scientific theory to explain electromagnetic waves in the 1860s and 1870s. He realized that electromagnetic waves can be created when magnetic and electrical fields combine together. He compiled this electricity-magnetism relationship into what are now known as "Maxwell's Equations."
German physicist Heinrich Hertz used Maxwell's theories to explain how radio waves are transmitted and received. In honour of Heinrich Hertz, the hertz, or one cycle per second, is the unit of radio wave frequency. Two issues were resolved by his radio wave experiment. First, he had proven that the speed of radio waves was the same as the speed of light, which was something Maxwell had only theorized.
This demonstrated how radio waves are a type of light. Second, Hertz discovered how to create electromagnetic waves by causing the electric and magnetic fields to separate from wires.
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Answer:
The British and French pledges to Poland signaled the end of the appeasement approach. Appeasement was the label given to Britain's policy in the 1930s of allowing Hitler to expand German territory unrestrained in the hopes of avoiding conflict. The Munich Agreement was met with joy in the United Kingdom.
Explanation: you welcome
<span>The correct answer is Irrigation. </span>
Answer:
Chocolate
Explanation:
Chocolate was discovered in Mesoamerica. The cacao plants were grown and the cacao beans were cultivated. The beans were roasted and further processing occurred to arrive at the production of the chocolate.
It was served cold and frothy by the mesoamerican elite which new world beverage began craze in Europe that coincided with growing European desire of sugar.
The Homestead Act granted 160 acres of land to participants for a small filing fee." i believe is your answer hope this helps
