How things workIs László Bíró the inventor of ballpoint pen? And what gave him the idea of making such a pen?
Science and TechnologyWhy are X-rays named after a letter of alphabet? What makes the X-rays pass through solid objects?
Outer SpaceHow does the Sun convert its mass into energy according to Einstein’s famous equation E=mc²?
Living CreaturesWhy does tail of a house-lizard (gecko) jerk and toss about for some time even after cutting off from the body?
Human BiologyWhat is the scientific cause of headache and migraine? What actually happens in the head at that time?
