One of the most sophisticated Ruba Goldberg machines in the world.

After losing the bet, YouTube user jackofallspades98 spent four months constructing one of the most sophisticated Ruba Goldberg machines in the world. It occupies two tables, and is so complex that it took 297 attempts before it worked from start to finish.

It is difficult to imagine how persistent one must be in order to check something 297 times, but it is especially difficult to imagine, given that for almost every new attempt, the machine needs to be rebuilt and rebuilt before the ball is re-launched.

Recommended

Parker probe approached record distance to the Sun
2019
12 snowmobiles produced in Russia: driving in the snow
2019
Huawei Mate 30 Pro tested in AnTuTu
2019