Recent content by Jakub Supel

Hi everyone, For many years I have been planning to become a theoretical physicist. If everything goes well, next year I will be graduating with a MMath, having studied QFT, GR, cosmology, particle physics, black holes, differential geometry, etc. This fall I am going to apply for a PhD in...

Shortly speaking, the question about energy is directly related to a serious problem with formulation of classical electrodynamics. It's the equation ##F+\frac{q^2}{6πϵ_0 c^3}\dot{a}=ma## which is problematic. For ##F=0##, there is a solution ##a(t)=a_0 e^{t / \tau}##, so if the equation is...

Ok, let me elaborate on my question. I really don't think the math is necessary as long as one understands all the physics behind the phenomenon, but I appreciate your skepticism. 1. A particle with mass ##m## (we can assume the electromagnetic mass is included here) and charge ##q## is moving...

Consider a charged particle moving with velocity v, having the energy 1/2 m v^2. Now we deccelerate the particle very quickly; so quickly that the radiated energy is greater than the kinetic energy (it can be arbitrarily large). Note also that energy obtained from decceleration is positive...