The voltage is 240 v in the UK and 120 v in the US, so you can look at the back plate to see if the projector can be adjusted for the different voltage, but if that can't be done you need a 240/120 v transformer and it has to be one that can take the required amount of power (watts).
" Go get me that projector, please".
No. Unless you have a UK to US power adaptor you can not use it.
You could use welders goggles. Or you could use a projector such as a pin hole projector.
Large projector screens are used in several places today. Movie theaters use projector screens, large conferences use projector screens, and you can even rent or purchase projectors and screens for personal use.
yes you can, but you will have to use a UK proxy.
projector have concave or convex
No, a movie projector uses a convex lens.
to find the degrees of an angle
Yes one to use would be the Hitachi Projector Remote Control
The Automatic 543 is the model of the projector that takes this tray.
One can find a cheap projector to use for PowerPoint presentations on ebay where they can be purchased both used and new. One can also buy them from Amazon and Cheap Projector.
ofcourse they do