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Wednesday, 23 August 2017

Cartilage

Tough ( Tuff )
Smooth
Strong
On ends of bones that move across each other.
Stops friction
Acts as a shock absorber 


Three things that can damage your cartilage:
Osteoarthritis
Torn meniscus
Playing football,Rugby,Tennis,Basketball,Squash and Ski-ing


Septic arthritis: Septic arthritis is a painful infection in a joint. The infection can come from germs that travel through your bloodstream from another part of your body. Septic arthritis can also occur when a penetrating injury delivers germs directly into the joint. (Google definition)


Osteo arthritis: this is when your cartilage breaks down.

Wednesday, 9 August 2017

other uses of the archimedes screw.

  1. other uses of the archimedes screw? Transferring water and used with seeds
  2. paper making through the ages? paper making process came in the 19th century with the invention of wood based papers.                        
  Start: Ancient Egypt + travel through times to today

Include: what was used 
-The path traveled around the world
Include: Samarkand.
- What relevance has religion to the spread and development of paper? papyrus made from the 

What materials have been used. 
PARCHMENT 
Sheep Skin.

When was wood pulp first used.
paper making in Thailand.
Paper making in NZ