People can fall: â  from the edge of a completed roof; â  from the edge where work is being carried out; or â  through openings or gaps. Edge protection Unless the roof parapet provides equivalent safety, temporary edge protection will be required during most work on flat roofs.
Why is astronomy considered the original science? Astronomy is the oldest science for our ancients either drew or made structures according to seasons or movements of celestial bodies in our Universe.
Astronomy is a core class and subject taught at Hogwarts School of Witchcraft and Wizardry and Uagadou School of Magic. Astronomy is a branch of magic that studies stars and the movement of planets. It is a subject where the use of practical magic during lessons isn't necessary. Uagadou students are known to be skilled in Astronomy, implying the teaching that is provided at Uagadou is excellent.