he had no proof how the continents drifted or what made them drift
no i think the 2oth century is the 1900s?
the world experienced a whole lot in the 1900s
the fastest growing population in the 1900s Was theWest.
Yes
rubles
Alfred Wegener developed the theory of Continental Drift in the early 1900s, but it was not widely accepted until much later. He presented his ideas in 1912 and published his theory in a book titled "The Origin of Continents and Oceans" in 1915. Wegener's work laid the foundation for the modern theory of plate tectonics.
Alfred Wegener
Alfred Wegener
A man named Alfred Wegener first put out the theory of continental drift. That theory then evolved into sea floor spreading when a man named Harry Hess discovered that there are underwater mountain ranges spreading laterally away from them. That then arrives at the current theory of plate tectonics.
They know that the continents drifted to their current location due to the rotation of the Earth.
Alfred Wegener tried to explain how continental drift took place, but he had no concrete evidence about how the continents moved. He had to explain what force is pushing and pulling the continents. And mainly in the early 1900s, most geologists thought that mountains formed because Earth was slowly cooling and shrinking. So most geologists would have to change their ideas of how mountains formed. Then in 1960 Harry Hess, an American geologist, he thought about the ocean floor in relation to the problem of continental drift. He proposed a process called sea-floor spreading. In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added. The ocean floors move like conveyor belts, carrying the continents with them. Hess soon found evidence from molten material, magnetic stripes, and rock samples from the mid-ocean ridges. And he proved that Wegener's theory wasn't wrong.
Alfred Kidder
Fred Hoyle is the one that is credited for coining the phrase The Big Bang Theory. The theory itself was first composed from observed by Vestro Slipher in the early 1900s.
Some famous scientists in the 1900s include Albert Einstein, Marie Curie, and Niels Bohr. Einstein is known for his theory of relativity, Curie for her work on radioactivity, and Bohr for his contributions to quantum theory.
John Dewey is considered the leader of progressive education in the 1900s. He believed in a hands-on, experiential approach to learning that focused on the student's needs and interests. Dewey's ideas had a significant impact on education theory and practice.
- glaciation similarities - plant and animal fossils located at different areas of the earth.suggesting that one continent must've been closer to another at one point.- same age and types of rocks- jigsaw puzzle of the earth.
Alfred Binet, in collaboration with Theodore Simon, developed the first systematic intelligence test in France in the early 1900s. The test was designed to assess a child's mental age compared to their chronological age. This test laid the foundation for modern intelligence testing.