Popular Science


Collection of my brief articles on popular science. Most have also been published in Spanish.
Full list at: https://manuelalfonseca.acta.es/docs/papersd.htm.

Manuel Alfonseca

Thursday, November 24, 2016

The problem of Achilles and the tortoise

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Zeno of Elea Zeno of Elea, a follower of Parmenides, is mainly remembered for his paradoxes which try to prove that movement does not e...
Thursday, November 17, 2016

Alternatives to the Big Bang

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The Big Bang theory has a problem, which can be explained by the following set of questions: The farthest we can see is the cosmi...
Thursday, November 10, 2016

Did the universe have a beginning?

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Georges LemaƮtre This question has fascinated scientists since 1931, when the Belgian astronomer, physicist and priest Georges LemaƮtre...
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Thursday, November 3, 2016

More about immortality

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Ray Kurzweil Ray Kurzweil calls himself futurist , meaning that he knows how to predict the future of technology. Actually, what he doe...
Thursday, October 27, 2016

The eerie silence

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A little over half a century ago, saw the beginning of project Ozma (named for the princess ruling the fictional country of Oz), which co...
Thursday, October 20, 2016

Aging and longevity

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Life span of several species. Data from Science News, 7-13-2016 It is often said that aging has been favored by natural selection to fa...
Thursday, October 13, 2016

Who is to blame for human atrocities?

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Dr. Thomas A. Dooley The following paragraph was written by Dr. Thomas A. Dooley in his book Deliver us from evil (1956). After severa...
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Manuel Alfonseca
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