Brain Teasers Optical Illusions Puzzle Hunts Codes & Ciphers Mechanical Puzzles
Personal Links
Browse Teasers
Search Teasers

Weird Wheel

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#2036
Fun:*** (2.56)
Difficulty:** (2)
Submitted By:Mogmatt16Ava****!!
Corrected By:Joanie




Lenny was out at the street one morning when he saw a rare sight: a car that has wheels with spokes driving down the road. As he jogged closer for a good look, he noticed the spokes on the top were going so fast they were blurred. But when he looked at the bottom half of the wheel, the spokes appeared to be going so much slower he could have counted them. If all the spokes were on the same wheel, how did this happen?


When viewed by a stationary object, the top spokes seem to be zipping by because they are going the speed of the car plus the rotation speed. But the spokes on the bottom of the wheel are going the opposite direction as the car, which is moving the same speed, but in the opposite direction, appearing still.

What Next?


See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.


Back to Top

Online Now
7 users and 726 guests

Users In Chat
Follow Braingle!
Fold 'N Fly Paper Airplanes
Easy to follow folding instructions and videos.
Copyright © 1999-2017 | FAQ | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise | Braingle Time: 10:48 pm
Sign In Create a free account