Search results
Results From The WOW.Com Content Network
In cosmological models of the Big Bang, the lepton epoch was the period in the evolution of the early universe in which the leptons dominated the mass of the Universe.It started roughly 1 second after the Big Bang, after the majority of hadrons and anti-hadrons annihilated each other at the end of the hadron epoch. [1]
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The concept of an expanding universe was scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.
The chronology of the universe describes the history and future of the universe according to Big Bang cosmology.. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
Albert Lee Weimorts Jr. (6 March 1938 – 21 December 2005) was an American engineer who was known for his design of some of the most powerful conventional bombs for the United States Armed Forces. Notably, he created the GBU-43 , or "mother of all bombs", which is the largest non-nuclear bomb in the inventory of the US Armed Forces, [ 1 ] and ...
The GBU-43/B Massive Ordnance Air Blast (MOAB, / ˈ m oʊ æ b /, colloquially explained as "mother of all bombs") is a large-yield bomb, developed for the United States military by Albert L. Weimorts, Jr. of the Air Force Research Laboratory. [1] [2] It was first tested in 2003.
For premium support please call: 800-290-4726 more ways to reach us
4–8 billion years from now (17.8–21.8 billion years after the Big Bang) An artistic illustration of what it would look like from Earth during the Milky way - Andromeda galaxy collision event The Andromeda Galaxy is approximately 2.5 million light years away from our galaxy, the Milky Way galaxy, and they are moving towards each other at ...
The cosmic neutrino background (CNB or C ν B [a]) is the universe's background particle radiation composed of neutrinos.They are sometimes known as relic neutrinos.. The C ν B is a relic of the Big Bang; while the cosmic microwave background radiation (CMB) dates from when the universe was 379,000 years old, the C ν B decoupled (separated) from matter when the universe was just one second old.