Bones are made of mostly collagen.
Bone is a living tissue, collagen provides a soft framework for the bone.
Article 5 describes what must be done to amend the Constitution, because the Constitution isn't set in stone
#1. The drive to expand westward.
#2. to rid the land of the 'savages'.
4. the hindenberg disaster, a total of 36 fatalities (changed public opinion on airships forever) as well as the competition with airplanes.
5. airships and blimps are both dirigibles. a blimp (technically a “pressure airship”) is a powered, steerable, lighter-than-air vehicle whose shape is maintained by the pressure of the gases within its envelope.
6. most blimps are used as advertising devices, you will see them overhead at games played in open-air sports stadiums.
