Like "The Sixth Sense" No spoilers. Cheers, Dr. A

@@yoprofmatt haha, yes

magic mirror kzfaq.info/get/bejne/oplgituYptDcfas.html

Thanks folks. Here's a video explanation of the glass: kzfaq.info/get/bejne/eb14gNeEs7HciXU.html Cheers, Dr. A

You're very welcome. Cheers, Dr. A

Why wouldn’t they be? Waves. Frequencies. C. They’re the same standard plugs no matter the appliance right?

@@Stopes. , I don't know, I only know that every other time I've read or heard about light waves and frequency, red or blue shifted, it always compares it to doppler shifting sound but points out that doppler only applies to sound not e.m.r. I don't care about that, I know what's meant but if you talk to anyone about the doppler effect they'll assume you're talking about sound.

Doppler is usually associated with sound because that's where it's most easily observed, but the Doppler effect indeed includes all waves as well, including EM waves. Cheers, Dr. A

@@yoprofmatt , hey Professor! Thanks for straightening that out for me. I love reading about and watching science videos and documentaries and thought it was related only to sound, because some of those videos made that statement. I have always had a million questions arising in my mind but I never had one about the doppler shift. You know that anyone explaining it to people like myself usually use the example of the sound from an approaching car that passes you and the difference in the sound is the illustration of the sound waves compressing as they near you ( like blue shifted light) and then stretching out and changing tone as they move away from you, ( like red shifted light) well, if you watch some of those videos, they almost always claim that doppler relates to sound waves while red and blue shift relates to light. If doppler also applies to light, does that mean tha red shift and blue shift also relates to sound?