Sure, the paper clip arm will bend more when more mass is added to the cup—but we need to know the relationship between deflection and mass. For this, I need some known mass units.

Right: Stock image of water cups. A TikTok Challenge has been dubbed the "new Jenga" online. ... The video even spread across platforms, with one tweet of the clip gaining 20,000 likes.

Challenge involves holding a full water cup on the ceiling using only a broom ... The 22-second clip has gone viral racking up more than 1.4million views and 104,000 likes on Twitter.