placing balls inside ball
52594
Can all circles of radius $1/n$ be packed in a unit disk, excluding the circle of radius $1/1$?
23160
How does a Poké Ball work?
114045
Shouldn't ball has to move in the circle even after cutting the rope by which it was attached?
67817
Number of ways to distribute 5 distinguishable balls between 3 kids such that each of them gets at least one ball
34616
Number of ways of distributing balls into boxes
9545
Closed ball is not compact
47197
How to create ball moving under blanket effect
2720
8 ball Pool: Left only with black ball
93710
Expected number of balls chosen from bag, I throw out everything in the bag with numbers less than the ball's
100193
Floating a ping pong ball in the air just using a pen!
17683
Putting  inside  is adding an extra
151090
Creating A Nested Mathematical Sets Inside A Rectangle
101504
An open ball is an open set
35859
Conditional Probability: Black and White Balls
4041
Claims and questions regarding $n$-ball distribution?
141291
Time of a ball going up and down with air resistance
154064
How to achieve a player that is not just a rectangle