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 →
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 →
Predicted a century ago by Albert Einstein, black holes have so far been mysterious cosmic objects, but now things could change: being able to photograph them means not only having direct evidence of their existence, but being able to observe what happens when matter approaches to such an extreme environment, where the force of gravity... Weiterlesen →
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 →
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 →
The challenges of sustainability Theories and empirical data uniquely demonstrate that there is a strong and decisive "human footprint" on climate change. That man is the cause, if not the only, by far the main cause of the increase in temperature and the increase of greenhouse gases in the atmosphere. This demonstration, according to the... Weiterlesen →
“A target within reach „ Important environmental objectives, from the "vertical farmer" to the "digital architect" which will be the most popular professions in fifteen and twenty years, when our children will enter the world of work. As far as clean sources are concerned, interventions are needed to make existing regulations and procedures more effective,... Weiterlesen →
