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earth

Medicine, climate or space exploration? The main scientific challenges in 2022

According to the international journal Nature, the year that has just begun will bring with it major scientific and technological challenges. According to the journal, there are a number of scientific investigations 'to watch for in 2022' that will cover…

earth

Hunga Tonga-Hunga Ha’apai

On 15 January, at about 5 pm (Italian time), the Hunga Tonga-Hunga Ha'apai volcano erupted, spewing a huge amount of ash into the atmosphere. The volcano is part of Tonga, the Polynesian kingdom in the South Pacific that has over…

earth

Citizen science, research conducted by ordinary citizens

When we think of scientists, we often imagine people wearing white coats, shut up in a laboratory working with test tubes and sensitive instruments or engaged in complex equations, dealing with matters that are  unintelligible to ordinary folk. However, this…

earth

At the origin of rocks: the secrets of paleomagnetism

Dear rock, tell me how your magnetic crystals are oriented and I'll tell you when, under what conditions and in what part of the world you were formed. It's not magic, but a subject known to geologists as paleomagnetism. Every…

earth

The Earth seen from above: signs of fires

This image was taken by the ASTER sensor installed on the NASA TERRA satellite platform. The image was taken on 27 July 2005 and shows the north-eastern part of Sardinia. The RGB representation is composed of the 8-3-2 bands of…

earth

Earth viewed from above

Remote satellite sensing: what it is and what it is used for In the scientific field, the images produced by the sensors on board Earth observation satellites make it possible to observe vast territories and investigate beyond simple human vision.…

earth

Easter with extinct friends

Easter Island is shaped like a triangle with three extinct volcanoes placed at the vertices, and has a total area of 163 square kilometres, therefore just a little smaller than Milan. It lies in the middle of the Pacific Ocean,…

earth

Science: Anaximander’s revolution

Rerum fores aperuisse, Anaximander Milesius traditur primus. Anaximander the Milesian is reported to have been the first to open the doors of nature. [Pliny, Natural History, II, 31] It is with this quotation from Pliny the Elder, the famous naturalist…

earth

Small steps, great footprints

Which one takes up more space, an apple or a steak? Have you ever wondered how much space is taken up by an apple or a steak? Quite easy: an apple occupies about 0.6 sq. m while a steak occupies…

 
 
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