Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] Transparency

Another related phenomenon is a pile of plates*. I was reminded of this when I saw a number of rolls of what I thought was aluminized plastic film at RAFT**. I unrolled a layer and found it was transparent, while the roll was mirror silver; sufficiently specular to see reflected objects. At home I observed a cover glass***, quite transparent, a stack of 50 was a poor quality mirror with a little transmission when interposed between a bright lamp

* Normally used to separate s and p waves. Before high quality lithography, selenium pellicles for the infrared.


*** plastic tissue culture cover slips (from RAFT). I didn't find my box of microscope slides.


On 2008, Oct 10, , at 01:49, John Denker wrote:

On 10/10/2008 12:08 AM, Bernard Cleyet wrote:

However, at least one counter example class exists to the above claim
in how stuff works regarding randomness and transparency.

Fused quartz and crystalline quartz are both quite transparent

All this is discussed at

Forum for Physics Educators