Tag: science & technology

Max Planck is credited with discovering the quantum theory of light in 1900 through his work on blackbody radiation. He introduced the concept that energy is emitted in discrete packets called 'quanta.' Einstein later expanded quantum theory with his work on the photoelectric effect, but Planck founded it.

The Michelson-Morley experiment in 1887 disproved the existence of luminiferous ether as the medium for light propagation. Their famous null result showed that the speed of light is constant in all directions, contradicting ether theory. This paved the way for Einstein's special relativity.

Heike Kamerlingh Onnes achieved ultra-low temperatures approaching absolute zero in 1908, discovering superconductivity in mercury in 1911. He was the first to liquefy helium and received the Nobel Prize in Physics in 1913 for his work. Isaac Asimov was a science fiction writer, while Michelson and Morley were involved in ether experiments.

Louis Daguerre invented the daguerreotype camera process in 1839, the first publicly available photographic process. The daguerreotype produced a unique positive image on a silvered copper plate. Galileo and Newton were from earlier centuries and not involved in photography.

Albert Einstein published the theory of General Relativity in 1915, describing gravity as the curvature of spacetime caused by mass and energy. This revolutionary theory replaced Newton's gravitational theory and predicted phenomena like gravitational lensing and black holes.

Edwin Hubble was the first to observe that the universe is expanding and galaxies are receding from each other. This became known as Hubble's Law (1929), showing that galaxies are moving away from us at speeds proportional to their distance - a fundamental discovery in cosmology.

The Steady State theory of the universe was proposed by Fred Hoyle, Hermann Bondi, and Thomas Gold. Jayant Narlikar later collaborated with Hoyle to develop the Hoyle-Narlikar theory, which was an extension of Steady State cosmology. Option A correctly identifies Hoyle and Narlikar as key proponents.

Edwin Hubble first observed that the universe is expanding and galaxies are receding from each other (Hubble's Law, 1929). This is a duplicate of question 46933 with shuffled options. Option A correctly identifies Hubble.

Adobe was named after Adobe Creek, a river that ran behind the house of co-founder John Warnock in Los Altos, California. The company's founders chose this name from their local geography, not from any city or trailer park.