Question Information:

While on the road, one of the many dangers the drivers face are flying rocks. It is common for a rock to get stuck between the rear double tires of a truck, such as the ones shown in the picture:



During movement, such a rock can dislodge itself from the tire at high speeds, becoming potentially becoming lethal for the drivers behind the truck.

To warn the truck driver about such a hazard, a common gesture is used when passing the truck.



Question: What gesture is used? Describe, draw or post a picture of it.






Answer: Since not many regular drivers own a walkie talkie or a dedicated radio on their cars, there was a need of a simple yet understandable one-hand sign that would alert the truck drivers of the problem.
It had to be one handed for it to be easy and safe to use, for the overtaking driver to be able to keep one hand on the wheel at all time.


And so, a crude yet effective hand sign was used, by clenching the hand into a fist and allowing the thumb poke out from between the index and middle finger, thus representing the two tires and the rock within.







The winner is Last Pilgrim, post #10, 7 hours after the post.


The cash was transferred to:
The.Icebreaker

' Wrote:There is no such gesture as there are quite a few problems with the story presented. For the rock to be stuck between the two tires means it should have a large volume. Rocks with large volume are heavy and even if the friction between the front tire and the rock could be enough to lift it, the back tire would immediately shoot the rock downwards again, towards the road. Both tires are spinning in the same direction, so there is no way the rock can gain a high speed.

IMG|Mara.Arin

' Wrote:You edited your first post after answers have been posted. Another picture that was on display when I gave my answer and can be seen below. It seems you ask the contestants not to break the rules of "no editing", while you abide no rule at all. I can understand that, you are giving away your money, so you can decide what to do with it, but this is a bit unfair and breaks trust.I am unable to respond to your question edit because I will be disqualified if I post again or edit my previous answer which has also been quoted in it's entirety. If one reads the question now and sees the picture, my answer will be deniable, while it couldn't have been with the picture you disclosed before editing.

http://i.imgur.com/mBoGd.jpg