Płyty tektoniczne – Poruszają się bardzo powoli

Płyty tektoniczne

Płyty tektoniczne – Poruszają się bardzo powoli

Płyty tektoniczne – Ziemia wygląda na nieruchomą, jednak rozwój naszej planety wciąż nie jest ukończony i Ziemia wciąż pracuje. Głównym powodem są ruchy płyt tektonicznych. Płyty poruszają się bardzo powoli, kilka centymetrów rocznie. Jeśli poruszą się gwałtownie, pojawia się trzęsienie ziemi. W historii geologiczna twarz Ziemi zmieniała się kilkukrotnie. Z Pangei uformowało się kilka kontynentów znanych nam do dziś. Płyty mogą poruszać się w kilku kierunkach. Mogą sunąć wzdłuż siebie, a ich tarcie uwalnia wówczas ogromne ilości energii w postaci trzęsienia ziemi. Gdy płyty suną naprzeciw siebie, wtedy albo jedna płyta podsuwa się pod drugą, albo napierają na siebie, powodując wypiętrzenie – w ten sposób powstały Himalaje, najwyższe góry na świecie. Płyty mogą się również od siebie odsuwać, tak jak płyty w Wielkim Rowie Afrykańskim.

Brussels tunnel – Experiment with photocatalysis

Brussels tunnel - Bruxelles-Arcades_et_tunnel_du_Cinquantenaire-001Brussels tunnel

Brussels tunnel – In 09.2011. European experts began their experiment in the Brussels tunnel, through which passes every day 25 thousand. cars. 100 meter length of building was covered with cement with titanium dioxide TiO2, which is the source of a chemical process called photocatalysis, acts as a catalyst driven by solar radiation (UV).

Meteorological week analysis

Meteorological week analysis - windenhaus_lindenbergMeteorological week analysis

Meteorological week analysis – After analyzing the meteorological data from the years 1991-2005, the German researchers found that the hottest day of the week is Wednesday, and the driest – Monday. However, in the weekend usually it rains. Within a week, smog obscures the sun and the exhaust gases are involved in the formation of clouds. On Saturday, this phenomenon goes critical.

English rivers waters – Substances blocking fertility

English rivers waters - gb4dot_rivers_englandEnglish rivers waters

English rivers waters – British scientists claim that in the waters of the English rivers is a group of substances blocking the male sex hormone testosterone. Thus reducing fertility in men. After examining fished out of the rivers fishes. It turned out that these compounds stimulate the development of female characteristics in males.

Antarctic temperature changes

Antarctic temperature changes - Antarctica_Subglacial_Lakes_MapAntarctic temperature changes

Antarctic temperature changes – Researchers at the University of Washington in Seattle (USA), after analyzing data from satellites observing Antarctica, came to the conclusion that Antarctica warmed by 0.5 ° C between 1957 and 2006. Scientists noticed that the temperature quickly rises to the west Antarctica. Heating the continent has an impact on rising sea levels.

Vasco da Gama – Researcher of sea route to India

Vasco da GamaVasco da Gama

Vasco da Gama – 08.07.1497 Vasco da Gama set out from the port of Lisbon in search of a sea route to India. The route led through the Atlantic near the Canary Islands and Cape Verde. Despite the fact that part of the road to the Cape of Good Hope was already well known. The cruise was not easy. The captain had to deal with riots, violent storms, and with scurvy among the crew.

Earth’s deepest borehole

Earth's deepest borehole - Borehole SG-3 on postage stamp USRR, 1987Earth's deepest borehole - Borehole SG-3Earth’s deepest borehole

Earth’s deepest borehole – For the deepest drilling on land experts believe a hole made on the Russian Kola Peninsula. Researchers began work in 1970., And already in 1984. Went down into the depths to 12 068 m. It was planned to pass through hard rock to a depth 13,5-15 km, but not proven diamond drilling tools and therefore are listed on a specially ceramic blades designed. Scientists surprised by, among others, numerous thermal springs flowing from the broken crystalline rocks on which it was assumed that they will be dry. When removing rock samples tore up under pressure, crumbling rock material, and sometimes exploded. The water temperature at the hole bottom was 220 ° C, pressure – 1,400 atmospheres.

Earth’s crust layers

Earth's crust layersEarth’s crust layers

Earth’s crust layers – The earth’s crust is composed of light rock, which in the course of a long development of the earth piled up, and then froze. Scientists have found that is divided into two layers. The division is called. Conrad discontinuity. External called granite, creating the continents, and because of prevailing in its composition elements – silicon (silicum, Si) and aluminum (Al) – formerly was defined as SIAL. Inside, called basalt, occurs in both the continents and the oceans. It is made mostly of silica (silicum, Si) and magnesium (magnesium, Mg) in her case was the name formerly used SIMA.