can hold his breath
longer than the DISK can spin.
The Big Bang Theory Season 10, Episode 16
A floppy DISK?
The Big Bang Theory Season 5, Episode 5
Okay, this is an Euler's Disk.
The Big Bang Theory Season 10, Episode 16
Okay, who had
Leonard gets a floppy DISK?
The Big Bang Theory Season 3, Episode 2
Oh, an Euler's Disk, fun.
The Big Bang Theory Season 10, Episode 16