Recent content by holess

thank you very much. i know what is a "skin depth". actually i was reading something about the influence the em waves exhibit on humans and i tried to connect several things i read about. could you recommend me a book or something else that explains things like you do about the em waves (or...

hi. thank you. it was my fault. somehow i wandered off the definition of an angle of incidence (the angle that a direction line makes with a line perpendicular to a surface). ok, thank you again. so, let me ask you this (i am very glad i have someone to ask). on that way, when a hole is...

ok, i am sorry i was not clear. i meant, if there is a hole and a wave propagates in the direction normal to it, like this (looked from a side): -> | -> | wave -> hole -> | -> | maybe that is not possible, or that...

thank you again very much. i am going to think about that. actually, i like very much that kind of understanding. i have to think a little bit more to align my thoughts with your way of explaining. and you reminded me about something that confuses me also: the angle of incidence. as i...

yes, i am sorry, you are right, i inverted the stuff: "... if a diameter is less than a wavelength then it stops the wave .." that was what i meant. sorry about that and thank you very much.

hi. thank you for your answer and your time. it sounds ok and reasonable but i still have the problem to better understand it. i would appreciate if you could help me to make it clearer (for me). in fact, everywhere it is explicitly stated that if the wavelength is less than a hole diameter...

Could you please give me an explanation about this (it should be a basic question): why a slit with the width less than a EM wave wavelength does not allow the wave to go through? I know Hygen's interference rule but somehow I don't see that if the slit is less than a wavelength it completely...