Lesson 2 - Grade 8 (11-15 May 2009)

1) Discussing the ancients - Al Jazari

2) Structures theory -

a) Shell structures:
purpose: To Contain and protect
5 examples of natural shell structures
5 examples of man made shell structures

b) Mass structures:
defenition of a mass structure
examples

The dam designed by Mr Richter on the Heiya Safari lodge property
The dam took 5 years and was built by only 12 labourers with a singlr cement mixer.

a Butress was explained, the force flow on the arch shapes to the butress was explained.

3) 11th hour - The impact and bias of mans technology on Earth.
First 10min of the programme was shown and discussed.