KHOST CITY (Pajhwok): A student of the Institute of Mechanics in southeastern Khost province on Tuesday claimed inventing a door that gets automatically locks in case of a bomb blast or another heavy sound.
Faizullah Mangal, in an exclusive interview with Pajhwok Afghan News, said that no one had helped him in preparing the door. He worked for five months translating his thinking into the invention.
The student has used simple metallic and wood pieces along with some electronic devices that help the door close. “I have also employed some microphones, loudspeakers, a small battery . . .
MH
Mohammad Haroon









