timer
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Background: Many types of candy come in pre-wrapped miniature single-serving (or “fun sized”) pieces, especially as Halloween candy. The Issue: For many people, it can be difficult to avoid eating an entire bag / bowl / other-type-of-container of candy. Proposal: We can create a candy dispenser that works as follows: first, the user fills the…
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Background: When an action is routine and uninteresting (e.g. locking a door, turning off a light, etc.), it’s sometimes hard to remember if you did it at all. The issue: Occasionally, people find themselves wondering “did I close the garage when I left the house?” or “did I remember to lock the car when I…
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Background: It is well known that washing hands for a surprisingly long time (30 seconds!) substantially reduces microbial contamination (Figure W1). The issue: Unfortunately, people generally feel, psychologically speaking, that their hands are clean immediately upon rinsing them with even the slightest hint of water. The challenge, therefore, is to encourage people to wash…
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Background: Many companies issue ID badges to their employees. Sometimes these come in multiple forms: one type of badge for permanent workers, and a different color for temporary employees. Proposal: In order make the time-limited nature of temporary employees more clear—and perhaps to remind the temporary employee to start applying for jobs again—a low-power timer…


