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The expanding Earth or growing Earth was a hypothesis attempting to explain the position and relative movement of continents by increase in the volume of Earth. With the recognition of plate tectonics in 20th century, the idea has been abandoned.
A NASA-led research team has confirmed what Walt Disney told us all along: Earth really is a small world, after all. Since Charles Darwin's time, scientists have speculated that the solid Earth might be expanding or contracting.
The history of the expanding-Earth theory is an example of how falsified scientific hypotheses can survive their own failure, gradually shifting towards and beyond the limits of scientific investigation until they become merely pseudoscientific beliefs. 1 Introduction.
Combining the expansion rates of land part and oceanic part, we conclude that the Earth is expanding at a rate of 0.35 ± 0.47 mm/a in recent two decades. If the Earth expands at this rate, then the altimetry-observed SLR can be well explained.
The history of the expanding-Earth theory is an example of how falsified scientific hypotheses can survive their own failure, gradually shifting towards and beyond the limits of scientific investigation until they become merely pseudoscientific beliefs.
Today: The Expanding Earth Theory, which argues that the reason the continents have spread apart is that the Earth itself has been getting bigger over the years.
Set one of the two positions (A or B) to adjust. These points are the beginning and end position for the animation. Each land mass can be adjusted by modifying their x, y, and z axis rotation (this can be tedious). You may drag the earth to see different views.
The Earth expansion problem has attracted great interest, and the present study demonstrates that the Earth has been expanding, at least over the recent several decades.
As a result of a stronger gravitation in the past, the ancient Earth would have been smaller than today. The gravitational argument for an expanding Earth was proposed by P. Jordan and L. Egyed in the 1950s and during the next 2 decades it was discussed by several physicists, astronomers and earth scientists.
From the mid-1950s onwards the idea of an expanding Earth was discussed and sometimes advocated by several earth scientists either as a supplement to or, more commonly, a substitute for the hypothesis of drifting continents. It is worth emphasizing the main difference between the two hypotheses.