it will help people, such as the innovative teenager hazamaneh souzi , who started an individual initiative to reduce waste and help save the environment. the hybrid works and it works with hydrogen. i am interested in engineering . so far, international meetings have been held with the aim of increasing the capacities of the african continent in the field of green energy production. according to the united nations, about 60% of the best sunny places in the world are located in africa. astronomers have succeeded in discovering a bubble of giant galaxies for the first time. this bubble of galaxies has a cosmic structure ten thousand times more than the milky way galaxy. according to nasa, this phenomenon is probably a kind of fossil left from distant years. the bubble can be considered similar to a spherical shell that there are several galactic superclusters inside it, and experts say that in the early universe , gravitational impulses and radiation caused the creation of sound waves and then the formation of these bubbles. the scientists considered the new discovery to be the first acousti