Physical World and Measurement

Named after the astronomer Edmond Halley, Halley’s Comet is a periodic comet that returns to earth after a period of 75 years. It was last witnessed in 1986 and is likely to appear again in the year 2061. Edmond Halley was curious to study the comets seen from earth in 1531 and then 1607 and […]

Introduction A frame of reference is an abstract coordinate system with an origin, direction, and scale given by a collection of reference geometric points whose position is both mathematically and physically identified in physics and astronomy. The requirement to differentiate between multiple interpretations of “frame of reference” has resulted in a plethora of words. The

Physics, technology, and society have always been intertwined. Physics and society accelerated further as new technologies were invented or facts were discovered. For example, Alexander Graham Bell, a Scottish engineer, and scientist invented the first telephone with practical function. His invention gave physics a new dimension and improved communication in human society. Similarly, when Newton