Posts Tagged ‘Tsunami’
Science with conscience
29
Sep
A tiny virus challenged us and put us in front of a serious pandemic,
a volcano that erupts and whose end even volcanologists and geologists still see as unpredictable.
The great mark of contemporary science is the end of certainties, the uncertainty principle first announced by Heisenberg and then certified by research in particle physics and astrophysics, Karl Popper developed the principle of falsifiability for science and Gödel’s Paradox says that no axiological system can be complete and consistent at the same time.
This should return us to humility, the Enlightenment does not mean that science has triumphed, but that it has discovered its limits and that it must give space to ethics and a humanism that completes man beyond his rationality.
Edgar Morin wrote “Science with a conscience”, presents a double challenge: it points out the ethical and moral problems that contemporary science has, whose multiple and prodigious powers of manipulation impose on scientists and citizens, and in a certain way, the entire humanity problem. political and private control of the discoveries.
According to Morin, the concepts of progress and knowledge that are related must be reordered, so progress is not reduced to the organization of economic development, and knowledge is not restricted to providing information, but also to overcoming theoretical social structures that condition their configuration to a way of thinking.
He clarifies on pages 9 and 10 that “the classic dogma of separation between science and philosophies, the sciences of this century all encounter fundamental philosophical questions: “what is the world? the nature? life? The man? reality?) and that the greatest scientists since Einstein, Bohr and Heisenberg have turned into wild philosophers.” (MORIN, 2005).
Remember in the preface also the precept of Rebelais: “Science without conscience is only the ruin of the soul.” (p. 9).
MORIN, E. Science without a conscience. Editing revised and modified by the author. (Translation by Maria D. Alexandre and Maria Alice Sampaio Dória). 9th Ed. Rio de Janeiro: Bertrand Brasil, 2005.
Volcanoes, between science and superstitions
28
Sep
The volcano in the Canary Islands, which has been burning for
more than a week, and for the time being just increasing the volume and quantity of glowing lavas have raised questions and fears, not everything is really right, volcanologists and geologists have no forecast for the volcano to cool down and not all superstitions came only from prophecies and apocalyptics.
The possibility of a megatsunami, starting from the middle of the Atlantic Ocean, the Pacific Ocean has more volcanoes and earthquakes in the so-called circle of fire (photo) than the Atlantic was studied after the Indonesia tsunami that gained notoriety, but it was Japan, which affected the Fukushima Plant the most amazing.
The warning came not from superstitious, but from British researchers in a 2001 article (Ward & Day, 2002), the article gained notoriety for directly citing the Canary Islands (see photo above), and was published in the scientific journal Yearbook of Science and Technology , carried out other studies in cases that have already happened, such as the 1st. April 1946 in the Aleutian Islands where there was a landslide similar to the one off the coast of Papua New Guinea.
Cited that the largest land displacement, which caused megatsunami, was the landslide in 1929 due to an earthquake in Newfoundland National Park, Canada, on the Burin peninsula, which reached the coast of Scotland and Holland, but only was noticed because of fragments that were deposited on the coasts of these countries.
The article carried out experiments by computer simulation, which shows that the efficiency of tsunami generation increases with the speed and volume of the landslide, and made a simulation precisely with the Cumbre Vieja volcano (fig. 3 above), on the island of La Palma (one of the Gran Canary Islands), and wrote verbatim: “continuous and recent movements of the flanks of a number of oceanic island volcanoes including Kilauea in Hawaii and Cumbre Vieja in La Palma in the Canary Islands are possibilities that these can break [the flanks] during an eruption in the not-too-distant future” (Ward & Day, 2001).
T he volume has increased since last Sunday (19/09) and one of the flanks opened, but it did not collapse and the lavas had not reached the sea until the present day yesterday.
We had other volcanoes during the year, in Italy Etna, in Russia the Ebeko volcano in the Kuril Islands and in Iceland the Fagradalsfjall, but these do not pose any danger, in the case of Iceland there was a period of interruption of air traffic in the region.
Other volcanoes in the world have manifested this year, in Africa the Nyiragongo in early June, in Indonesia the Sinabung in early March, in Guatemala the Fire Volcano, but the eruption has already ceased, there are others around the world, active volcanoes ( but not in eruption) there are more than a thousand altogether, Brazil is far from the tectonic plates that, in addition to volcanoes, cause earthquakes.
For a few hours the Cumbre Vieja Volcano stopped spouting lava, but it returned, whether the duration and volume of material will be sufficient for a tsunami depends on the intensity and duration, neither volcanologists nor geologists who follow the volcano can say with certainty.
Ward, N. and Day, Simon. Suboceanic Landslides. Steven Yearbook of Science and Technology,
Ward, N. and Day, Simon. (2001). Suboceanic Landslides. Steven Yearbook of Science and Technology, McGraw-Hill, Available in: ward&day.pdf (ucsc.edu)
