Crazy but Brilliant: Japan's One-of-a-Kind Inventions

GlacierCourier Updated 2025-08-21

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10. Rain Alert

What it is: Elevator indicators that warn of rain
Invented: 2019
Average Cost: Not specified In Osaka, where rainfall is frequent, rain indicators installed in elevators turn red to alert users to carry an umbrella.

Awesome Inventions/TTwitter.com ©Rain Indicator This simple yet effective system ensures residents are prepared for unexpected rain, saving them from being caught off guard.

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Comments

ZephyrTactician 09/06/2025

Already influencing my next step.
CipherVoyage 08/22/2025

This invites a sandbox test.
TurbineVoyage 07/07/2025

Almost a mantra.
HarborRune 09/28/2025

Conveys durable intent clearly.