#रोचक तथ्य

Science · 3 min read What is the golden blood group (Rh-null)? The rarest blood in the world Rh-null blood has none of the Rh-system antigens, which is why it is called golden blood. How rare it is and how it differs from India’s "Bombay blood group". Science · 3 min read Why do fireflies glow at night? The simple science of bioluminescence A firefly’s light comes from a chemical reaction that gives off almost no heat. Why they flash and where in India you can see them. Amazing facts · 3 min read What yellow and white road lines mean: what every driver should know Broken white, solid white, yellow and double yellow — what the lines on the road mean and when overtaking is allowed. Amazing facts · 3 min read The world’s most expensive wood: African blackwood and India’s sandalwood Dense African blackwood, which sinks in water, is used for clarinets; India’s sandalwood and red sanders are prized too. Why some woods cost so much. Science · 3 min read Polonium-210: why it is one of the most dangerous substances Discovered by Marie Curie, polonium gives off alpha radiation that cannot pass the skin but is extremely harmful inside the body. Its science, uses and safety. Amazing facts · 4 min read 10 interesting facts about India every Indian should know The largest democracy, the largest postal network, the birthplace of chess and zero, a landing near the Moon’s south pole — ten facts about India. History · 3 min read 10 amazing facts about ancient India: from Harappa to Nalanda Planned Indus cities, the Lothal dock, Nalanda university, the mathematics of Aryabhata and Brahmagupta, the rust-resisting Iron Pillar — ten achievements of ancient India.