Space science & general science ...

Voyager 1 Click image to fly along with Voyager 1. (Higher resolution) Distance from Earth 20,604,145,675 KM 137.73020685 AU Distance from the Sun 20,690,100,586 KM 138.30477994 AU Roundtrip Light Time from Earth 38:10:56 hh:mm:ss The chart above is a real-time odometer of Voyager 1's distance from the Earth and the Sun in astronomical units (AU) and kilometers (km). Note: Because Earth ...

What Is the Big Bang Theory? By BALBEER SINGH DANU A 2013 map of the background radiation left over from the Big Bang, taken by the ESA's Planck spacecraft, captured the oldest light in the universe. This information helps astronomers determine the age of the universe. Credit: ESA and the Planck Collaboration. The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it talks about the universe as we know it starting with a small singularity, then inflating over the next 13.8 billion years to the cosmos that we know today. Because current instruments don't allow astronomers to peer back at the universe's birth, much of what we understand about the Big Bang Theo...

Schrödinger’s Cat: Explained   by:- balbeer singh danu Erwin Schrödinger was born in Vienna on August 12, 1887 and was awarded the Nobel Prize in Physics in 1933. He is best known for his work regarding quantum theory, particularly about his thought experiment involving a cat in order to explain the flawed interpretation of quantum superposition. The Copenhagen Interpretation of quantum mechanics essentially states that an object in a physical system can simultaneously exist in all possible configurations, but observing the system forces the system to collapse and forces the object into just one of those possible states. Schrödinger disagreed with this interpretation. So what does this have to do with cats? Schrödinger wanted people to imagine that a cat, poison, a geiger counter, radioactive material, and a hammer were inside of a sealed container. The amou...

Atomic Structure BY:-BALBEER SINGH DANU The ancient Greek philosophers Leucippus and Democritus believed that atoms existed, but they had no idea as to their nature. Centuries later, in 1803, the English chemist John Dalton, guided by the experimental fact that chemical elements cannot be decomposed chemically, was led to formulate his atomic theory. Dalton's atomic theory was based on the assumption that atoms are tiny indivisible entities, with each chemical element consisting of its own characteristic atoms.  ✶ ✶  See Atoms article for further discussion of Dalton's atomic theory. Modern View of the Atom The atom is now known to consist of three primary particles: protons, neutrons, and electrons, which make up the atoms of all matter. A series of experimental facts established the validity of the model. Radioactivity played an important part.  Marie Curie  suggested, in 1899, that when atoms disintegrate, they contradict Dalton's idea that ato...