it was proposed by Charles Darwin and Albert Einstein
There is evidence that the Nebular hypothesis was first proposed in 1734 by Emanuel Swedenborg.Immanuel Kant, who was familiar with Swedenborg's work, developed the theory further in 1755. A similar model was proposed in 1796 by Pierre-Simon Laplace.
They proposed the Phlogiston Theory.
The statement that it is characteristic of a scientific theory is that is well tested is false. A scientific theory is a proposed explanation of certain circumstances in nature.
Alfred Wegener proposed the theory of continental drift at the beginning of the 20th century. His idea was that the Earth's continents were once joined together, but gradually moved apart over millions of years. The idea was rejected at first as he was a Meteorologist and not regarded as a proper scientist.
type your answer here....
Pulsating theory and oscillating theory are related concepts in cosmology but are not the same. Pulsating theory suggests that the universe undergoes cycles of expansion and contraction, leading to a series of "big bangs" and "big crunches." In contrast, oscillating theory specifically refers to a model where the universe expands and then collapses repeatedly in a cyclical manner. While both involve cyclical behavior, the terminology and implications can vary based on the context in which they are used.
Pulsating Theory According to this theory, the universe is supposed to be expanding and contracting alternately i.e. pulsating. At present, the universe is expanding. According to pulsating theory, it is possible that at a certain time, the expansion of the universe may be stopped by the gravitational pull and the may contract again. After it has been contracted to a certain size, explosion again occurs and the universe will start expanding. The alternate expansion and contraction of the universe give rise to pulsating universe.
It was originally proposed in the 1920s
the pulsating universe theory is when the universe expands (the big bang) then contracts (the big crunch) and so on (it's pulsating). according to this theory right now the universe is expanding, but then it will contract
The two men who proposed the collision theory are Max Trautx and William Lewis. The theory which was proposed in 1918 explains how chemical reactions occur.
The term "pulsating theory" may refer to scientific theories or models that involve cyclic or oscillatory behavior, similar to a pulse or heartbeat. These theories often describe phenomena that exhibit repetitive patterns or fluctuations over time, such as in the case of pulsating stars or oscillating systems. The term highlights the rhythmic nature of the process or phenomenon being studied.
Karl Marx proposed the theory of communism.
The chromosomal theory of inheritance was proposed and developed by one Walter Sutton and Theodor Boveri.
1855
schleiden
plato
The theory of evolution by means of natural selection.