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Mar 3rd, 2003, 01:01 PM
#1
Thread Starter
Fanatic Member
Examples of parabola's
I'm trying to find a few (real-life) examples of parabola's, and so far I've only found one A bridge: the top bit can be a parabola.
Can anyone else supply me with a few more? Cheers!
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Mar 3rd, 2003, 01:16 PM
#2
Addicted Member
The inside of car headlights are shaped as parabolas because if you stick a point light source at the focus of the curve, it reflects all the light in the same direction, namely out the front.
Not at all related to sheep...
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Mar 3rd, 2003, 06:23 PM
#3
Hyperactive Member
comets form parabolas when they are deflected by the gravitational pull of the sun
If I agree with you today, don't get used to it.
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Mar 3rd, 2003, 08:58 PM
#4
Fanatic Member
Rainbow,... The thing girls like to jump with,.. Hot balloon, and it's really hard to say many other things, because a parabola in geometry is only 2D, while things in the reality is mostly in 3D and 4D if you are an SR, GR student.

prog_tom
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Mar 4th, 2003, 01:14 AM
#5
Conquistador
a projectile (bullet, ball etc)
representations of maximum areas etc
quite a few things..
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Mar 4th, 2003, 08:32 AM
#6
Thread Starter
Fanatic Member
Thanks!
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Mar 4th, 2003, 02:19 PM
#7
Addicted Member
Comets actually follow elliptical orbits so they don't count.
Not at all related to sheep...
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Mar 4th, 2003, 04:33 PM
#8
Hyperactive Member
not the whole orbit man, but the bit around the sun & other stars
If I agree with you today, don't get used to it.
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