Some telescopes by virtue of their design should already be capable of revealing cooling radiation if it existed.
eg. This telescope consists of a primary parabolic reflector and three secondary mirrors which direct the collected light into an instrument room several meters away from the primary reflector. See the first two photos on this page: http://www.vikdhillon.staff.shef.ac.uk/teaching/phy217/telescopes/phy217_tel_coude.html This telescope should be capable of focusing enough frigorific radiation that it could be sensed by a hand crossing the path of the beam in the instrument room. It seems unlikely that such an odd cooling sensation would go unreported. Therefore it is likely frigorific radiation is not real. Harry On Mon, Jan 24, 2022 at 4:43 PM MSF <foster...@protonmail.com> wrote: > > Don't forget to give us the result of your experiment if you do it. > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > > On Monday, January 24th, 2022 at 9:06 PM, MSF <foster...@protonmail.com> > wrote: > > > Now that we have learned about all there is to learn about the acquisition > > and preservation of dry ice, I think you're right about this test. The > > double parabola test you initially proposed would not have proved or > > disproved cooling radiation. The dry ice at the focus would have been a > > radiative heat sink and would have lowered the temperature at the other > > focus. At least that's my opinion of it. > > > > The simpler test you propose really demonstrates the idea of cooling > > radiation as its own wave phenomenon, if it exists. > > > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > > > > On Monday, January 24th, 2022 at 5:35 PM, H LV hveeder...@gmail.com wrote: > > > > > From a fabrication standpoint here is an even simpler test for cooling > > > > > > radiation. > > > > > > It consists of a truncated cone lined with reflective mylar on the > > > > > > inside. The wide end is open to the sky and a thermometer is located > > > > > > at the vertex of the cone. > > > > > > See diagram: > > > > > > https://drive.google.com/file/d/1p7coRgUqwzMGw40DhUQzJACCyHrd8EL5/view?usp=sharing > > > > > > If cooling radiation does not exist then the temperature of the > > > > > > thermometer should be about the same or perhaps slightly warmer when > > > > > > the cone is above it. > > > > > > However, if cooling radiation is real and has wave-like properties > > > > > > then the cone should focus the cooling radiation from the sky onto the > > > > > > thermometer and lower its temperature. > > > > > > Harry >
