Sleep and its importance

On average, adults need 7-8 hours per night, while children can sleep up to 10-12 hours a day. Having said that it is also true that the need for rest is an individual characteristic. The transition from wakefulness to sleep is regulated by a timing that changes from individual to individual and even in the... Weiterlesen →

Fish wasted

The production of flour and fish oil, growing in West Africa, threatens not only the seas off the African coast but also food security and the livelihood of coastal populations. According to the recent report by Greenpeace wasted fish the stocks of small pelagic fish, fundamental for coastal craft fleets and the feeding of countries... Weiterlesen →

Teaching computer Science

Can computer science be taught without even a PC? Surely it is difficult, but not impossible. The proof comes from Ghana, where a 33 year old teacher teaches the use of PCs to his students. His story has become known throughout the world after the publication on Facebook of images depicting the prof in action.... Weiterlesen →

The Water War

Water covers 71 percent of the Earth's surface but for the most part it is composed of salt water and even the sweet one is not always accessible: only 0.3 is found in rivers and lakes and can be used by humans . The danger of tensions and conflicts linked to the access and control... Weiterlesen →

Bees

The learned scientist, once calculated that if all the bees had disappeared from the earth, four years later, all people disappeared. I do not know if this is an issue that has already been addressed (I was trying to search, but I have not found any similar topics) or that might be of interest, but... Weiterlesen →

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