Scientists have developed such a cement that will absorb solar energy in day and emit light in night. When used, there would be no need to spend electricity to illuminate roads. And this cement will last for 100 years.
News Source
HT
Scientists have developed such a cement that will absorb solar energy in day and emit light in night. When used, there would be no need to spend electricity to illuminate roads. And this cement will last for 100 years.
