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Mirage maker - concave mirrors

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Uploaded by on Sep 10, 2008

Another use of concave mirrors

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Education

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Uploader Comments (yerrahyouknow)

  • Hi Enda,

    I'm pretty sure Lennox do them. give them a call at 01 4552201.

    If no joy get back to me.

  • Very impressive...so in physics there is no way for light to reflect off of light...say laser light being condensed and uniform photons, more energetic wave length...being struck by a less energetic light source albeit a laser there would be no results "reflection"?...thinking particle/wave qualities if i cast a stone in a pond then a second in a new location there is a new wave created in a new direction...less there is cancelation...see my point?

  • Yes you do have a point; you can indeed get interference between two light sources, it's just not likely to be a factor in explaining the phenonema above. Interence would be most noticeable if both sources were single wavelength (like from a laser as you suggest) but in this case normal sunlight or flashlight incorporates many different wavelengths.

  • yes. I wasnt refering to the pig example. I was thinking more on photonic physics possibilities. Interesting so light can cause interference with other light if both sources were single wavelengths...Where would I begin to look if I wanted to put together an equation explaining or that already explains what would happen in light on light interference where single wavelength sources are involved?

  • The resources I use for teaching are at

    thephysicsteacherdotie/wavenat­ureoflightapplets.html

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All Comments (9)

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  • Why is everyone so interested in the pig??? This makes no sense!

  • FAIL

  • Enda,

    I picked one of these up in the toy section of Debenhams in Mahon pt in Cork last year for 5 Euro (a smaller version admittedly, but 'twas a great deal!).

    Dunno if they still have them, but it's worth a try!

    Brian.

  • Hi noel,

    Any idea if you can get these in Ireland? Unfortunately they wont give me a credit card yet!!

    Enda.

  • Bingo! Impressive isn't it?

    btw it's reflection rather than refraction above (sorry, just the teacher in me :) ).

    Remember you can purchase these from teachersourcedotcom. It makes a great present.

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