|
|
|
Napier's ballistic logarithms Developing a proposition in the "Arenaria" work of Archimedes, from which it is obtained that the product of two powers of base ten is equal to ten elevated to a power that is the sum of the exponents of the two factors with base ten, John Napier (1550-1617) baron of Merchiston at Edinburgh developed a table of the so-called logarithms [of Burgi ?] useful especially to make the ballistic calculations in a short time and defined for that time remarkable. Left the studies the Scottish mathematician was engaged for the Anglican and Protestant propaganda with various writings; then devoted himself to scientific studies, to the design of war machines and especially to the ballistics, first using sticks as columns of the pythagorean table and then after many years of study passed to make trigonometric calculations and refinements, with the logarithms. Conceived also a calculator machine described in a text of great historical interest. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Oct 06, 2017 
n°: 3582
 Evidence of ancient and abundant life on Earth Probably life on Earth has ancient origins (about five hundred million years after its formation four and a half billion years ago) and contrary to previous assumptions was also abundant, at least according to Japanese and Canadian researchers who took samples of sediments rich in carbon in Labrador, in an area that underwent fewer modifications caused by plate tectonics, finding the geochemical signature resulting from the decomposition of living organisms. In practice the planet could not be inhospitable and with conditions to make life difficult as previously it was supposed to have left so many traces resulting from the accumulation in the water of sediments of graphite. The evidence that traces are of organic origin is obtained from the analysis of the mass of carbon isotopes with graphite samples that tend to be much lighter than those resulting from inorganic aggregations. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Sep 29, 2017 n°: 3576 Fish intelligence underestimated With the progress of knowledge on the fish it has been discovered that they are more intelligent than one can think and that for example they are able to recognize each other, to avoid even for years a particular bait and they can also recognise a human face; then they experience stress, fear and pain in addition to having an active social life cooperating in group for the hunt or otherwise to protect themselves in case of danger. Evaluated a time as rather primitive forms of life the fish generally do not enjoy a good reputation from the point of view of their ability to experience emotions and now their fate it is often reduced to be caught with sophisticated methods such as "industrial extraction" or to be bred in large tanks to obtain food for human consumption; so according to some it would be necessary to have greater legal protection like other animals because they are not treated poorly and can enjoy a minimum well-being. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Aug 29, 2017 n°: 3548 Lost an important book by Bernardino Telesio For a decaying affair in a palace in Cosenza not properly reported was lost in a fire the original of the opera "De rerum natura iuxta propria principia" by Bernardino Telesio (Cosenza 1509 - 1588) in which the philosopher argues that in order to investigate nature, it is necessary to find the principles on which to base research in the same nature; in fact, being also the man a natural product whose spirit is identifies with that of all living beings has this possibility, sensibility and perception that allows to know. Warm and cold are the principles that the naturalist identifies and who act in opposition to each other, in practice with the heat that comes from the sun that by dilation makes the bodies light and therefore promotes the movement and the cold of the earth that tends in the opposite to condense. From these principles a third would be deduced from the matter as an inert mass without neglecting a cosmic spiritual external intervention. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Aug 21, 2017 n°: 3541 Forecasts on disturbing climatic models If the pollutant emissions continue to increase the global surface temperatures could have increased by more than four degrees Celsius by the end of the century with consequent intense heat waves and extremely hot days even in the night, at least according to forecasts made on climatic models by international meteorological organizations that warn as for example Paris could change from an average in the summer months of about twenty-two degrees to twenty-nine degrees and in other cities it calculates six to nine degrees summer temperature fluctuation in more. There could be health and transportation problems, worse air quality in addition to scarcity of water and energy and risk of falling in extreme poverty for large masses of population (if no incisive measures will be taken) so that climate change will be the greatest challenge that humanity will face. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Jul 19, 2017 n°: 3512 Calculations on the costs of climate change in U.S. That the economies of the industrialized countries "disposable type" are unstable, unbalanced and unsustainable for the planet is not new, and now an American research warns that without adopt decisive measures to counteract climate change and reduce the polluting emissions, the country will become poorer, in practice at any minimum increase in temperatures. If the current trend continues (in the worst scenario) there will be a dramatic inequality with a third of the already impoverished counties that they'll see a further decrease in revenue of more than twenty percent. In particular the Gulf Coast could be affected by extreme climatic events with an inevitable increase in migration, tension and violent crimes. Other studies pointed out that there have been no structured and funded organisations in America to contrast those of climate change skeptics. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Jul 01, 2017 n°: 3497 Population growth in India and Africa According to calculations and forecasts of the world population that of India within about seven years will exceed in number that of China; moreover Nigeria with the current growth rate will become before 2050 the third most populated country in the world, thus receding the United States, then when it comes to Europe are expecting a decline in the population in the coming decades. It is assumed that Africa for its rapid growth rate in general is destined to be the area of origin of more than half of the world's population by 2050; in fact women have a fertility rate beyond triple highest of European women. As regards the world population it is estimated that it will reach the eight billion and six hundred million individuals in 2030, the nine billion and eight hundred million in 2050 and eleven billion and two hundred million in 2100 with a growth of eighty million individuals per year. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Jun 23, 2017 n°: 3490 A tree that always tilts towards the equator Measuring in eighteen different regions of five continents the inclination of two hundred and fifty-six pine trees (Cook pine varieties originating of the New Caledonia) the researchers would have found that it tends to always tilts towards the equator with an average inclination of about eight degrees, twice that of the Pisa tower; moreover the more trees are far from the equator the more they tilts, even checking a case of inclination of forty degrees in the south of Australia. No other plant would present these characteristics and is try to give an explanation to the phenomenon by formulating various assumptions and however it means that the plants adapt to the environment in an unknown way. Another study indicated some cells in the seeds of plants that function in the same way as those of the brain to identify the right period in which to germinate the seed that is essential for the proper development and survival of the plant. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Jun 12, 2017 n°: 3480 A reminder of the Italy anti-mafia pool Twenty-five years from the day when he was commemorated by the death of Falcone, his wife, the escort in the attack of Capaci and after a few months the death of Borsellino some have accused the administrative organs of the time and in particular the Superior Council of the judiciary to have in practice decided the fate of Giovanni Falcone dismembering the anti-mafia pool and allowing in this way that criminal organizations could ramp up undisturbed in the country (so much so that now even in the north of Italy is speaks of structural mafia and no more infiltrations). Investigating the movements of money was the investigative method used by the anti-mafia pool remained famous and also used abroad; but the so-called "refined minds" that acted from a higher level of control, being able to count on the majority of the members who composed them, succeeded in neutralizing the investigations to sand them, opposing obstacles or moving the acts. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: May 23, 2017 n°: 3463 Overcome in a new way the fear of spiders There are many people who are afraid of spiders and therapists teach usually to face the so-called arachnophobia almost encouraging to deal with it; but British researchers have devised a new method using the experience about key elements of the environment doing sit patients in front of a computer screen and giving them the opportunity to vary the distance of the spiders, more or less close, since it is important to be able to control their feelings of fear to try and improve the health and well being. In practice patients learned in various stages to approach virtually to spiders with computer simulation, then by statements on real life two weeks later showed that despite the fear managed to avoid a little less the spiders. This simple technique could be used effectively to treat other types of very common phobias. e-mail: info@salutary.eu Tel: +39 338 1809310 Date: Apr 12, 2017 n°: 3431 Mind - training * The author doesn't assume some kind of responsibility for the bad use of the articles councils (all rights are reserved) |
 |
