Answer the question of how to wake a deaf person when a fire occurs

Fire alarm and smoke alarms have been a standard for current apartments. When there is a fire, the bell system will emit loudly to signal to everyone in the house to escape the apartment in time, right away while sleeping.

Japanese scientists have had another effective measure for deaf people (and not deaf): fire alarms with wasabi odor.

But how to warn a deaf person who is sleeping very drunk during the night? The fire alarm was useless because they could not hear it, but Japanese researchers had another effective measure for deaf people (and not deaf): fire alarms with wasabi odor . This study won the 21st Ig Nobel Prize at Harvard University. Ig Nobel is the scientific antidote given to the most suspicious achievements in the fields of science, "which at first laughs, and then forces people to think".

Previously, scientists had studied hundreds of different odors to test, including rotten egg smell, before deciding on the wasabi smell, which is a very popular sushi meal in Japan. This alarm system costs 50,000 yen (about 500 USD) that will emit the wasabi smell with allyl isothiocyanate that irritates and irritates the nose, it will awaken the most sleepy people. "No one can sleep with the atmosphere filled with wasabi," said Makoto Imai, one of the scientists in the group.

This unique fire alarm system is only an idea and has no mass products. If this idea is noticed by manufacturers and made it a reality, this will be a new breakthrough in fire alarms, especially for deaf people.