Exploding Concrete
I recently came across a very interesting incident involving foam concrete. Foam concrete is produced by mechanical mixing of foam prepared in advance with concrete
I recently came across a very interesting incident involving foam concrete. Foam concrete is produced by mechanical mixing of foam prepared in advance with concrete
Nihon Sandai Jitsuroku – is an ancient Japanese text compiled in 901. It talks about an earthquake and Tsunami that occurred in 869: “Then