Algis Džiugys

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Questions related from Algis Džiugys

What physical processes could be described by differential equation dy/dt=-t*y?

As for example, light beam attenuation is described by the differential equation dS/dx = -S which solution is S~e(-x). But what physical processes could be described by the...

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Adaptive method of Curvilinear coordinates in COMSOL?

COMSOL v5.1 has possibility to use an Adaptive method to define Curvilinear coordinates system. According to description of the method, the adaptive method adapts the computed vector field to...

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What is the gravity field of a photon?

Let us imagine hollow sphere having mass M and with ideal mirror surface of inner walls. Equal quantities of antimatter and matter with mass m are placed inside sphere. Total mass of the system is...

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