Calculate the height of an object from a baseline when its projected position to the ground is inaccessible. Case scenario when baseline AB is level and collinear with object.

The roof of a church which is located near Durban, South Africa, collapsed killing 13 and injuring 16 people.

Nasa has awarded a $100,000 price to three winning teams that developed 3D-printed structures suitable for housing people on the moon and on planet Mars.

Canada's building code is heading towards environmental sustainability. The new regulations will be implemented by 2025.