Hi.Non-physics student posting here for first time purely out of curiosity. I was wondering if we could improve our ability to percieve high speed objects which move to fast to see, by, for want of a better phrase, using a big magnifying glass backwards. For instance, if a car moves down a 500 metre racetrack in say 1 second. If you were to get a huge glass lense (or glass block may be the right word), which is 500 metres wide next to the track but narrows down horizontally to 5 metres at the point where one is standing. if it is possible to treat the image on the glass as a seperately percievable entity, would you see a much smaller car travelling over a 5 metre stretch in the same amount of time, thereby travelling at 1% of the speed, therby allowing us to accurately percieve its motion. I know there may be several scientific flaws in the above paragraph, but i need help in identifying or confirming whether this is an actual possibilty/ occurence. I'm not even sure if its possible to have a glass block which performs such a function but i got the idea from turning a magnifying glass around, which makes the object seem smaller. At first i thought that as it is a smaller object it would travel the distance proportionately, therefore making the speeds the same, however if you were to concentrate on one point, this would simply only have to travel a hundreth of the distance of the original car, in the smae amount of time. If this were true, does it/ would it have implications in studying any other kinds of fast moving objects in the science? Moderators: I am relatively new at using forums and understand this post may be in the wrong place as I was not sure what type of scientific category it fell into, therefore please move it to a more suitable place if necessary.