Menu Home My entries Defined browse Select Select in the list MathematicsPhysics Then Select Select in the list Then Select Select in the list Search

 Welcome to the PF Library! To start, either use the drop downs to browse a topic or use the search box for finding a specific item. if an item is missing that you'd like to "seed", then choose "add content". If an item contains incorrect information or needs additional information then feel free to edit an item. All entries are auto linked in forum posts. When adding content, please choose standard term names for titles. For a complete FAQ click here.

 Top viewed moment of inertia 107616 work done 57630 buoyant force 53479 standard integrals 52702 electric field 52639 pressure 51856 kinetic energy 40378 friction 39339 coefficient of restitution 37070 momentum 36711

 Recent additions neutrino oscillation 12/02/2014 Stokes' Theorem 12/06/2013 How to find potential functions 30/05/2013 Metric Tensor 20/01/2013 simple Lie algebra 03/09/2012 Lie algebra 02/09/2012 Lie group 20/08/2012 Cayley-Dickson construction 20/08/2012 group character 14/08/2012 finite field 14/08/2012

 Top contributors tiny-tim 78 lpetrich 32 Redbelly98 10 Janus 10 stevebd1 9 Hootenanny 8 rohanprabhu 7 olgranpappy 7 G01 6 malawi_glenn 5

 Last comments neutrino oscillation Redbelly98 Okay, I have approved the item (sorry about the delay in getting back to this). pressure Thomas Johnson I always wondered isnt dark matter similar h*c/λ = (6.626*10^-34)*(3.00*10^8)/(557*10^-9) = 3.57*10^-19 J The energy rate (power) is then (2.9*10^17)*(3.57*10^-19) W = 0.104 W (4 × pi × radius2)∞ So... pressure Thomas Johnson I always wondered isnt dark matter similar h*c/λ = (6.626*10^-34)*(3.00*10^8)/(557*10^-9) = 3.57*10^-19 J The energy rate (power) is then (2.9*10^17)*(3.57*10^-19) W = 0.104 W (4 × pi × radius2)∞ So... pressure Thomas Johnson I always wondered isnt dark matter similar h*c/λ = (6.626*10^-34)*(3.00*10^8)/(557*10^-9) = 3.57*10^-19 J The energy rate (power) is then (2.9*10^17)*(3.57*10^-19) W = 0.104 W (4 × pi × radius2)∞ So... pressure Thomas Johnson I always wondered isnt dark matter similar h*c/λ = (6.626*10^-34)*(3.00*10^8)/(557*10^-9) = 3.57*10^-19 J The energy rate (power) is then (2.9*10^17)*(3.57*10^-19) W = 0.104 W (4 × pi × radius2)∞ So... neutrino oscillation tiny-tim Hi Redbelly! Thanks for the comments. :smile: C is just a constant (and (m1.m2) is a row vector). I think it's obvious that λ1 and λ2 are constants, and I hoped the... neutrino oscillation Redbelly98 Looking good. I have a couple of comments. 1. In the expression for potential V, I think all the terms should be defined. What is C(m1,m2)? Simply a normalization factor, or... Physics Forums Medals adjacent You fool,Ya fool Physics Forums History adjacent Very interesting. My "Ancient forum" Don't quote me.It's just my imaginary part. I like this forum.It's like a wonder. friction pratikpatil what is inertial frame of refrence work done Aterioluwa I'm so confused guys. the work i know of is just force * distance rolling tiny-tim Added "Rolling" in ships and aircraft to ext expl. capacitor tiny-tim corrected equation for energy stored in ext expl Physics Forums History Drakkith An amazing place to learn real, mainstream science without having to deal with crackpots and trolls or worrying that the answers you're getting aren't correct. I love PF! magnetic field san.k can we enhance a planet's magnetic field to attract and repel alpha particles like a particle accelerator in outer space to create a planet like the "death star" from star... rotating frame jhae2.718 I wrote up a post on the kinematic transport theorem (http://www.physicsforums.com/blog.php?b=4622), which is similar in scope to this article. I'm not sure if it should be a separate library article... Metric Tensor Mandelbroth I can't edit it, but this page bothers me. I think the whole thing should be a subcategory for a metric tensor entry or a separate page, like "Metric Tensor... simple Lie algebra lpetrich What I describe is evident when one uses the "Cartan-Weyl basis": 10.Cartan-Weyl_basis.pdf (http://www.weizmann.ac.il/home/fnkirson/Alg13/10.Cartan-Weyl_basis.pdf) magnetic field boisebrats it would seem that if this was so, that all other planets mars, mercury etc. would exhibit the same magnetic field with varying mathematical predictability,. . . magnetic field Velikovsky Is it a possibility that the earth's magnetic field is a result of it's rotation within the electrical/plasmic field/flux given of by the sun? If the earth were to theoretically...