Vertical farms could, and should, replace traditional agriculture. Plants grow indoors on multiple floors, independently of the external climate and in less space than would be needed, and that would allow controlling the flow of pesticides and fertilizers much more efficiently. The system can be hydroponic, with plant roots submerged…

It seems so.

Most of the stars in today’s universe are of the third generation. The first generation stars that lived at the dawn of the universe are the largest the universe has ever seen or will ever see again. In the early and dense universe, black holes could not evaporate although small…

Absolutely. It has also been done without too much difficulty by a well-known American youtuber. Elastic objects store kinetic energy in the form of the potential energy of the bonds between the constituents of the material. For the shield to bounce like a freesbe, the vibranium must behave like an…

Because the curved shape, being made of and supported by arches, requires fewer bricks (only one row instead of two) than a straight wall…

Celestial bodies are for the most part spherical, but the density of a planet, its size and the speed of rotation on its own axis can, and in most cases do, cause the shape of a celestial body to diverge from that of a perfect sphere. Firstly, the planet must…

If we stick to elements made up of protons and electrons, the answer is obviously no, because you cannot have less than one proton in the nucleus of an atom. But there is an exotic type of atom, in which one of the ‘normal’ particles is replaced by other types…

That is also one of the main problems related to space exploration: how to grow plants without the sun available on Earth? Researchers have looked for solutions, starting from the assumption that the efficiency of photosynthesis is quite low and requires numerous other resources. They therefore thought of replacing sunlight…

What Africa needs to go through is just a demographic transition. The behavior and reproductive habits of human beings change as their environment, resources and society change. When literacy increases and medical care becomes more widespread, two things happen: A decrease in the infant mortality rate, due to better health…