Techniques-or How did he do that?

Eaglecash867

The higher bands of UV light that generally cause damage to things, UVB and UVC, are almost 100% blocked by household glass.  There is glass that will pass those wavelengths, but they don't use it in home construction.

I cannot speak directly to this, but I will say that for many years, any books or paperwork I leave in direct sunlight in my office will turn yellow quickly.  Newspapers are notorious for this, so perhaps a simple test - leave a fresh newspaper half in and half out of the sunlight in your house and see if there's a difference.  ¯\_(ツ)_/¯

Yeah!

   They seem to know when another Kitty is around. Even if it flies. Cats are mysterious for sure! Did you know that a cat can jump from the ground straight up almost to my eye level(I'm am 5'6") Mine has done this more than once when I startle her! I wonder if we could learn how to do that with cars and keep them airborne?

He does more than watch sometimes, and he has also brought lots of parts back out of the wormhole...I think cats must have time travel capability which allows them to jump forward in time to where the part went.

One tomcat giving the face rub of familial recognition to another Tomcat.  Sometimes he helps.  LOL

Eaglecash867:

         Your cat sounds like He's? very handsome. Does he watch you work like my Midnight Siamese watches me? Oh, My cat has been a savior when a part heads to the Vortex in the Carpet monster, She always seems to find the part and not chew it up.  She will spit it out on a Tool-box I keep on the floor next to my bench?

          Funny thing is, I did NOT teach her to do this.

Tanker-Builder

Cooking oils Do aerosolize and cover quite a bit of a house, it's like a cough. The Molecules travel a lot further than we think.

Yup.  All you have to do is spray a little of even the fume free oven cleaner on any wall in your kitchen and you'll see a bunch of yellow/brown slime form and start sliding down the walls...and those are walls that look clean.

I have a nice, powerful air cleaner that runs 24/7, and dust my apartment top to bottom on a regular rotating schedule.  My cat, being a Pixie Bobcat, has a nice dense, double coat so he gives me very little extra work to do...he doesn't shed much at all, thankfully.

Hi Eaglecash867!

         Yeah, I am sure there is. We must always factor in the Whole environment, not Just the effect or any that U.V. has on these things. I would assume that if the model is in a case that can "Breathe" properly, there shouldn't be a problem. Now exposed on display, brings other factors into the equation. Cooking oils Do aerosolize and cover quite a bit of a house, it's like a cough. The Molecules travel a lot further than we think.

      That said, the contents of the dust that settles on an unprotected model contain pollutants that also cause this yellowing. We just don't see it. I live in a modern(less than 20 year old house) with two Cats and Three dogs. I am constantly cleaning the display pieces in my room in which the door is always closed. Cat hair and dust are carried in the air currents. And all filters are changed every thirty days wether they need it or not! SOO. Nuff said.

The higher bands of UV light that generally cause damage to things, UVB and UVC, are almost 100% blocked by household glass.  There is glass that will pass those wavelengths, but they don't use it in home construction.  I didn't believe it either until I got more serious about providing the optimal habitat for my reptiles and invested in a UVB meter.  I confirmed that the amount of UVB coming through the glass was negligible...MAYBE 1 microwatt per square meter, when the measurement outside the window was well over 300.  That measurement was taken less than an inch from the inside of the glass, and the energy quickly attentuates with further distance.  Nothing is traveling beyond more than a foot or two beyond the glass.  There are probably lots of other factors causing it though. 

Eaglecash867, Hi!

       Actually there is. In some houses with Big window areas and depending if the curtains are Open and what direction the house is facing, the sunlight can come in through the windows and shine on the model. I have seen this many times and I don't think the home-owner even realized it.

Tanker-Builder

The only drawback to any Bee's Wax containing product is this, In U.V. light they will get a golden hue to the color.

I keep seeing posts about UV light altering things, which leaves me wondering where a model would get prolonged exposure to UV light.  There isn't going to be any indoors, not even by a window, and I haven't seen any residential lighting that emits it.