to erect / vertical / vertical stroke (in Chinese characters)
In the space station's bathroom (Ø4) Sheldon Shrimp (shu) is experimenting with different ways of putting a radio (収) on top of a vase (立) in order to use the vase as resonating body to improve the sound quality. In the end he decides that the best way to put the radio is to set it up vertically (竖).
In front of the outhouse, Sherlock Holmes wants to improve the range of his radio receiver, so he adds very long roast forks as antennas. To make them safe he shoves boxing gloves over their pointy ends.