BrainStuff: Do Crosswalk and 'Close Door' Buttons Really Do Anything?

HowStuffWorks_SciencePublished: June 15, 2018Updated: June 16, 2018
Published: June 15, 2018Updated: June 16, 2018

Are the buttons we push to cross streets, close elevator doors, and nudge the office thermostat really connected to anything? Some aren’t! Learn how these placebo buttons (don’t) work.

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