Challenge on Sept 08

Challenge: Build a tall structure with 5 pieces of newspaper.

The base of our group's structure:

Physics of tall structure:
- Strong and heavy base
- Shape of base
- Supporting legs
- The top should not be too heavy

To make a structure stable:
- Balance
- Prevent floppy material

Definition of center gravity:
A collection of masses is the point where all the weight of the object can be considered to be concentrated.