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Topic: the real tube
Replies: 2   Last Post: Feb 15, 2013 8:46 PM

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Posts: 456
Registered: 12/6/04
Re: the real tube
Posted: Feb 15, 2013 8:46 PM
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On Sat, 9 Feb 2013 22:14:34 -0800 (PST), calvin
<> wrote:

>Now hold up the tube in front of your eye, as you
>would hold a telescope, looking toward the zero
>meter end. You see the disc 0, face on. Now
>turn the tube around and look toward the one
>meter end. What do you see?

Nothing your line of sight is blocked by the zero disc

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