-
Asked by 466heab47 to Rachel, Naomi, Louise on 19 Mar 2015.
-
Rachel Pallan answered on 19 Mar 2015:
I think this is because they are associated with a spot of light from far away and so a single point of light is brightest in the middle then fades as it gets further away from the source, looking circular but as for close up I think this is just something the film industry has shown them as which has just stuck in everyones mind so they keep using it.
-
-
Louise France answered on 19 Mar 2015:
Hiya 🙂
I think they are only perceived to be circular! If you were to spin a cube it appears circular as the edges become blurry!
Lets assume they are all a disc shape – this wouldnt be a bad thing as rounded objects are much more aerodynamic and so could travel faster if they are flat and curved (a bit like a frisbee) Curved objects achieve much more lift and do not fight the air but rather move with it.
Sadly I think thats the limit of my UFO knowledge 🙂
-
Naomi Green answered on 19 Mar 2015:
Hi there 466heab47 🙂
UFO stands for unidentified flying object. That means that someone has seen something unusual in the sky and we don’t know what it is. A lot of people use the term UFO to describe an Alien spacecraft. However as far as I know there is no really evidence that we have ever found a really alien spacecraft. A lot of UFO’s get investigated and explained or just remain a mystery. There is no proof that there is life anywhere else in the universe although many scientists believe the universe is sooooooooo big that there must be it is just very far away from Earth and therefore we haven’t seen it yet. So you see UFOs are not all circle shaped because they have not been found yet! I think there were a few famous cases of UFOs which were disc shaped so people sometimes refer to them as Flying Saucers. 🙂
Hope that helped! Don’t forget to vote for your favourite engineer 🙂
Comments