Funny question: On parking lot walls there are holes about the size of tennis balls. What are their function?
113318
Maybe they are holes so the walls can be transported (moved) with certain moving equipment
513748
Rebound Ace is a cushioned tennis hardcourt comprised of layers of rubber\n\nits a type of court \n\nmy university has this kind of basketball court, it gives the ball better bounce.
1008845
The parking slots in the bar is meant for employees working in the bar and their boss.They can park their cars there.\nAlso some people have drivers for their car.
636501
so they can see the balls
683
Long enough to reach the end of a hole
489084
put the ball in the hole
493621
Here's an idea for you... you know how those with handicapped parking mirror hangers always have to do something with the signs (put in the glove box or just leave hanging there) so they can legally park in the handicapped parking spaces?  How about inventing a velcro patch that sticks the hanger to the car's ceiling?  This would make it safer for drivers when their views are unobstructed.  And it's simple to develop, too!  \n\nGood luck!
91076
The city impound lot is responsible for collecting and disposing of such stuff. They may also subcontract the work out to other lots. \n\nIf you contact them, they can tell you about upcoming auctions or sales.
359650
They make stakes you can put into the ground that let out small electric pulses that keep them away.  I'm not sure how far away from the stake it will work but it should work if you put them on the corners and by the net (outside the sand).\nYou can find them at places like Home Depot.
707267
As far as I can tell, there are no illegal hole locations.  However, if I were in your position, I would adopt some local rules which would be mandated and posted for everyone to see.\n\nFor example, here are some common sense rules that I think one should obey.\n\nThe hole should be at least a club (e.g., putter) length from the edge of the green.\n\nThe hole should never be placed on a mound, where the green drops off on all sides away from the hole.\n\nThe hole shouldn't be placed in a low area where the ball will tend to roll into the hole from any direction.\n\netc.
150717
The ones I have seen are vertical walls in the shape of a cylinder. like a soup can.  A car or motorcycle, or bicycle enters into it and when they are going fast enuf they can travel up the walls.  The car or bike has to be going very fast.  If they slow down they will fall off the wall, and thats why its a wall of "Death"
382591
So that they don't clang together like a pair of clackers,( that is a child's toy, two balls hung on string suspended so they hang together and 'clack' when swung together) \nNature has method in its ways.
439060
cause wat makes the wet stuff come out is around the entry way of the hole
478453
The numbers on the balls are only there to help people distinguish their balls from another can of the same brand on an adjacent court. \n\nNumbers on the tennis balls are right under the logo. This is so that when you have, say, 8 adjacent courts and some are using the same brand or type of ball, then there won't be a mix-up of someone's ball sprays onto the other court. Unless, of course, they're both using the same number tennis balls. For instance, if you are using Penn 3s, the court on your left has Penn 1s, and the court to your right has Wilson 3s, you can tell at a glance which court to throw the extra ball to and in turn they can get your lost ball to you easier.
1168507
Here is one example...the bouncing ball. Just google that in and you get a bunch of results.
224157
there is a little plastic switch on the floppy itself. switch it in that position away from the border so the hole is covered.
414472
HAHAHAHA You all forgot about our little friend called drag! Inside or out the ball has a drag force acting on it by the surrounding air. Like stated before the air in the car is moving with you, and the car, and the ball all the same and the drag force on the ball at this point is negligible. This is not the effect of a vacume, a vacume is the absence of air. is it possible for there to be no air in the car? NO, Sooo.. outside on a bike or where ever, you are traveling at a speed where the balls light weight will be significantly affected by this drag force and it will cause it to slow down as you throw it up and while you keep riding on un affected by the static(motionless) air, your ball only has one force acting on it, air drag causing it to slow behind you.   test this by throwing a variety of same shaped objects while riding and you will see that the one with the most density will keep up the best. try a marble V.S. a ping pong ball.  then do it in the car