CBSE Class 10 Science marks distribution 2026 explained with chapter-wise weightage for Biology, Chemistry, and Physics. Know high-weight chapters and smart exam preparation tips for CBSE Board Exam ...
Scientists have broken a century-old chemistry rule by creating “impossible” molecules. The breakthrough could reshape drug design, materials science and how chemistry is taught worldwide.
At the end of a lecture on astronomy, describing how the planets orbit the Sun, a little old lady at the back of the room stood up and said: "What you've told us is all rubbish. The world is really a ...