Read the story here. Advertise at Before It's News here.
Profile image
By Mark Wadsworth blog
Contributor profile | More stories
Story Views
Last hour:
Last 24 hours:

Light passing through a pane, a prism and two prisms

% of readers think this story is Fact. Add your two cents.

Follow up to this post to illustrate the contradictions.

Light going through a pane is easy enough. All colours are bent by the same amount on entering and on leaving, and what goes in = what goes out, which is parallel to the original ray. We also know that light takes the fastest route from source to image (like the “dog crossing a canal diagonally to chase prey some way from the canal bank” problem in maths):
Light going through a prism is easy enough as well. For some reason, longer wavelengths (red) are bent less than shorter ones (blue). You can read this one in either direction – either white light source on left being split into colours, or different colours coming in from the right to merge to white light on the way out (left):
If you add a second prism flipped upside down with a gap between them, the second prism reverses everything merges everything back to a single white beam on the way out – the two prisms act much like a single pane with an air gap in it.

But what if the two prisms are polished so perfectly that they are flat on a molecular level, and you move the two prisms closer and closer together until they are 100% touching (forming a single pane). We know what goes in, we know what comes out.
- Do the different colours take different paths (as shown in my rather badly drawn picture below), or do they “realise” that they are being tricked and “decide” that they are actually dealing with a single pane and then all follow the same path (as in the first picture)?
- They can’t “know” what to do on entering until they leave again. Or does the fact that light, in its own reference frame, travels instantaneously (if something is travelling at the speed of light, then time slows to zero), play a part here?
- The assumption that they all take the fastest route from source to image breaks down, as the red light (being least bent) must have travelled a shorter distance through the glass than green and blue.
- Or, as I asked last time, is there some mysterious quantum mechanics effect happening on the tiniest level incomprehensible to humans, which means that each photon takes every possible path, has a “think” when it’s got there and then “chooses” the best one?


Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!

Order by Phone at 888-809-8385 or online at M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at M - F 9am to 5pm EST

Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)

Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen!

Nascent Iodine - Promotes detoxification, mental focus and thyroid health.

Smart Meter Cover -  Reduces Smart Meter radiation by 96%! (See Video).

Report abuse


    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    Load more ...




    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.