The tallest man to ever live was Robert Wadlow, who reached a staggering 2.72m. That's equal to a very large male ostrich or Shaquille O'Neal with two bowling pins balanced on his head.

The table below comprises the names of units which are part of the latest syllabus for the 2025 exams. These chapters are intact with minor additions. Discovery of Electron, Proton, and Neutron, ...