faucet
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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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The issue: Once in a while, people accidentally forget to turn off a water faucet (e.g. a bathroom or kitchen faucet) and leave it running all day. This wastes water, and is unacceptable. Proposal: There are existing solutions to automatically turn off faucets, but generally they are either incredibly annoying (the motion-activated faucets that work…
