My family possesses a roughly 100 year old fire extinguisher. It has a fairly thin cylindrical shape and contains a type of powder that will put out a fire if poured. It's full/never been used. We're all very curious about the value of it and are wondering if anyone can either point us in the right direction or even give an estimate of it's worth. Any information would be greatly appreciated, thanks!!
There is no one right fire extinguisher. A Co2 will remove the oxygen but if it is a fuel fire the fuel can just reignite. A chemical extinguisher will put out a fuel fire by smothering it but won't work on electrical an leaves one heck of a mess. Either type works on a electrical fire but you have to remove the source of the electricity first.
It isn't clear if you own all of those tools you mentioned but they are pretty close to the basics for a serious effort at quality woodworking. I would suggest the best area to start in would probably be cabinet making for builders. That would be the area where the most work is. Getting connected with a couple of up scale decorators is another place where there is a need for skilled woodworking and usually people with sufficient money to pay what you are worth. You sound like you might have the skills to do kitchen and bath remodeling. That is an area where a really skilled person can usually name their price. The big problem is most people really don't have any idea of the work that goes into building and finishing a really nice piece of furniture and therefore are not willing to pay you what you are worth.
The physical phenomenon is not a new discovery. Use of curved reflective surfaces to magnify has spread throughout the world, and beyond. (For example, the Hubble telescope has a curved mirror larger than a person.) Using that particular model of wristwatch for this purpose might be a new discovery, but is not very significant, because actual curved mirrors that are made for this purpose work much better than wristwatches. The passenger's side mirror on a car is curved in the opposite direction, to make objects appear smaller, so that more of them can fit on the mirror. This is why they appear to be farther than they are, and the mirror may say objects are closer than they appear. When you look into a spoon, you can see an image of yourself upside down. If you hold it very close to your eye, you see a reflection of that eye, right side up. If you hold it very close to the distance where the image flips over, the image is magnified greatly.