Alarm: Clock

force users to complete tasks—such as doing squats, solving math problems, or taking a photo of a specific item—before the sound will stop [3, 17]. : Devices like the Puzzle Alarm Clock

: Ever wonder why the iPhone snooze is exactly nine minutes? Early mechanical clocks had gears that made it difficult to set a precise 10-minute delay, so they settled for "just under 10 minutes," a tradition that persists in digital design today [36]. Modern Innovations and "Menacing" Designs alarm clock

fire pieces into the air when the alarm triggers; the user must find and replace them to silence the noise [23]. force users to complete tasks—such as doing squats,