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Release. July 18, 2012. ( 2012-07-18) –. present. Game Grumps is an American Let's Play web series hosted by Arin Hanson (2012–present) and Dan Avidan (2013–present). Created in 2012 by co-hosts Hanson and Jon Jafari, the series centers around its hosts playing video games. After Jafari left the show in 2013 to focus on his own YouTube ...
2014. Last updated: August 7, 2024. Jonathan Aryan Jafari ( / ˈɛəriən /) (born March 24, 1990), better known online as JonTron, is an American YouTuber, comedian, and media reviewer. He is best known for his eponymous YouTube web series JonTron, where he reviews and parodies video games, films and other media.
The Friedmann equations, also known as the Friedmann–Lemaître ( FL) equations, are a set of equations in physical cosmology that govern the expansion of space in homogeneous and isotropic models of the universe within the context of general relativity. They were first derived by Alexander Friedmann in 1922 from Einstein's field equations of ...
The equations are derived from the basic principles of continuity of mass, conservation of momentum, and conservation of energy. Sometimes it is necessary to consider a finite arbitrary volume, called a control volume, over which these principles can be applied. This finite volume is denoted by Ω and its bounding surface ∂Ω.
On Game Grumps, Hanson and Avidan play video games and talk, to an often comedic effect. [35] Hanson has also appeared on the channel's spin-off shows Steam Train and GrumpCade, along with other Game Grumps members in a similar format to the parent show; he and Avidan also front the 10 Minute Power Hour, in which they engage in various ...
In fluid dynamics, the continuity equation states that the rate at which mass enters a system is equal to the rate at which mass leaves the system plus the accumulation of mass within the system. [ 1][ 2] The differential form of the continuity equation is: [ 1] where. u is the flow velocity vector field.
The Navier–Stokes equations ( / nævˈjeɪ stoʊks / nav-YAY STOHKS) are partial differential equations which describe the motion of viscous fluid substances. They were named after French engineer and physicist Claude-Louis Navier and the Irish physicist and mathematician George Gabriel Stokes. They were developed over several decades of ...
Density ( volumetric mass density or specific mass) is a substance's mass per unit of volume. The symbol most often used for density is ρ (the lower case Greek letter rho ), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: [ 1] where ρ is the density, m is the mass, and V is the volume.