Is there life on mars essay

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Is there life on mars essay

Building the Case In spite of all the criticism, Wegener was able to keep Continental Drift part of the discussion until his death. He knew that any argument based simply on the jigsaw fit of the continents could easily be explained away.

To strengthen his case he drew from the fields of geology, geography, biology and paleontology. Wegener questioned why coal deposits, commonly associated with tropical climates, would be found near the North Pole and why the plains of Africa would show evidence of glaciation.

Wegener also presented examples where fossils of exactly the same prehistoric species were distributed where you would expect them to be if there had been Continental Drift e.

The graphic below shows Is there life on mars essay striking distribution of fossils on the different continents. Wegener used an Alexander duToit graphic to demonstrate the uncanny match of geology between eastern South America and western Africa.

URL for Section http: One would expect scientists to resist ideas that challenged their life's work. It doesn't explain all of the criticism. To explain the unusual distribution of fossils in the Southern Hemisphere some scientists proposed there may once have been a network of land bridges between the different continents.

To explain the existence of fossils of temperate species being found in arctic regions, the existence of warm water currents was proposed. Modern scientists would look at these explanations as even less credible than those proposed by Wegener, but they did help to preserve the steady state theory.

New theories often have rough edges. Alfred Wegener did not have an explanation for how continental drift could have occurred. He proposed two different mechanisms for this drift. One was based on the centrifugal force caused by the rotation of the earth and another a 'tidal argument' based on the tidal attraction of the sun and the moon.

These explanations could easily be proven inadequate. They opened Wegener to ridicule because they were orders of magnitude too weak. Wegener really did not believe that he had the explanation for the mechanism, but that this should not stop discussion of a hypothesis. A major conference was held by the American Association of Petroleum Geologists in that was critical of the theory.

Alfred Wegener died a few years later. With his death, the Continental Drift Theory was quietly swept under the rug. The existing theories of continent formation were allowed to survive, with little challenge until the 's.

He did not have an explanation for how the continents moved. His attempt to explain it using tides only made things worse.

Is there life on mars essay

But both Galileo and Darwin had serious flaws in their theories when they were first presented. Galileo had a tidal theory that was more embarassing than Wegener's and Darwin was missing a mechanism for his theory.

History treats the three men differently in spite of the fact that their theories arrived with pretty big holes.

Notes on the listings This hypothesis relies on the vast size and consistent physical laws of the observable universe. According to this argument, made by scientists such as Carl Sagan and Stephen Hawking[6] as well as well-regarded thinkers such as Winston Churchill[7] [8] it would be improbable for life not to exist somewhere other than Earth.
Alfred Wegener and his Critics Significantly reduces use of fossil fuels farm machines and transport of crops Makes use of abandoned or unused properties No weather related crop failures Offers the possibility of sustainability for urban centers Converts black and gray water to drinking water Adds energy back to the grid via methane generation Creates new urban employment opportunities Reduces the risk of infection from agents transmitted at the agricultural interface Returns farmland to nature, helping to restore ecosystem functions and services Controls vermin by using restaurant waste for methane generation No-cost restoration of ecosystems: The best reason to consider converting most food production to vertical farming is the promise of restoring ecosystem services and functions
Extraterrestrial life - Wikipedia If you have a chance to go to a country side where you may have a clear view of the sky at night, you probably will discover a red star.

Charles Darwin was missing an important mechanism for evolution when he published the Origin of Species in see Mendel and Darwin. He argued that with the natural variations that occur in populations, any trait that is beneficial would make that individual more likely to survive and pass on the trait to the next generation.

If enough of these selections occured on different beneficial traits you could end up with completely new species. He did not have a mechanism for how the traits could be preserved over the succeeding generations. At the time it was thought that the traits of the parents were blended in the offspring.

Unfortunately, blending would dilute any beneficial trait out of a population within a few generations. This is because most of the blending over the next generations would be with individuals that did not have the trait.

This gaping hole in the theory didn't stop universities such as Oxford from teaching Evolution as fact shortly after the publication of the Origin of Species.

This hole in Darwin's theory was plugged about 50 years later using the work of a Roman Catholic monk, Gregor Mendel. His theory provided an alternative to blending where traits were inherited whole.

Darwin's theory had another problem. His theory proposed a gradual evolution through successive generations. The fossil record of the time contradicted this.

There seemed to be an 'explosion' of different life-forms over a relatively short time span in the early Cambrian period the Cambrian Explosion.Introduction Though perhaps best known throughout the world for his science fiction, Isaac Asimov was also regarded as one of the great explainers of science.

Life on Mars If life ever evolved on any of the other planets, Mars is the likeliest candidate. After Earth, Mars is the planet with the most hospitable climate in the solar system.

So hospitable that it may once have inhabited primitive, bacteria-like life. Extraterrestrial life, also called alien life (or, if it is a sentient or relatively complex individual, an "extraterrestrial" or "alien"), is life that occurs outside of Earth and that probably did not originate from hypothetical life forms may range from simple prokaryotes to beings with civilizations far more advanced than humanity.

The Drake equation speculates about the. The inescapable conclusion is that subjectivity, relativity and irrationalism are advocated [by Richard Rorty] not in order to let in all opinions, but precisely so as to exclude the opinions of people who believe in old authorities and objective truths.

Mars in the Tenth House and well-aspected is one of the best signs of success in life for it gives an ambitious, enthusiastic nature with an inexhaustible fund of energy, so that no matter what obstacles are placed in his way the person is bound to rise to the top.

It gives a masterful nature and good executive ability so that the person is well-qualified to conduct business and command others. Life on Mars This Essay Life on Mars and other 64,+ term papers, college essay examples and free essays are available now on Autor: review • March 3, • Essay • Words (4 Pages) • Views4/4(1).

Life on Mars - Essay