The little-known secret of Leonardo da Vinci's omnipotent genius

Leonardo - the first person to explain why the sky is blue. In his book On Painting, he wrote: The blue color of the sky is caused by a thick layer of illuminated air particles in the middle of the earth and black above.

Leonardo da Vinci - a genius, a great Italian inventor. Some of his masterpieces and inventions are known to the world, but there are some interesting facts about Leonardo's life and creations that are less known to everyone.

Giant asteroid 2024 YR4 visits Earth: Is 'doomsday' near? Phạm Đông14:18:27 12/02/2025Asteroid 2024 YR4 is on track to hit Earth in 2032, releasing 500 times more energy than the Hiroshima bomb. Although the probability is low, NASA and ESA are closely monitoring it to prepare precautions to protect the planet from potential disaster.