alt.sci.physics

On 14 Feb, 18:14, dlzc wrote:
> Dear Pippo:
>
> On Feb 14, 8:52=A0am, Pippo wrote:
>
> > I'm looking for a table with raw material of the
> > electromagnetic waves
>
> Table 1 =A0electromagnetic wave components
> Item =A0 =A0 Description
> 1 =A0 =A0 =A0 =A0 Universe from which wave properties derive
> 2 =A0 =A0 =A0 =A0 Emitting process
> 3 =A0 =A0 =A0 =A0 Universe+History that separates the emission and detecti=
on
> processes ("red shift" due to "universal expansion", diffraction
> geometry, etc.)
> 4 =A0 =A0 =A0 =A0 A group (one or more) of Photons
> 5 =A0 =A0 =A0 =A0 Detector (a charged particle)
>
> Reflectors are conductors, in general.
>
> > Ps
> > What is . the best raw material for . 10^5 - 10^1 or 1 -
> > 10^-4 ?
>
> What units? =A0Are you trying to reflect radio waves?
>
> David A. Smith

Thank you for the message,
the units are meters, and yes I'm trying
Do you know what is the best material?
Thanks
Regards