How can hydraulic multiplication be used?
It can be used in pneumatic systems.
What are some challenges to designing an effective hydraulic system?
The tube size, making sure the inside is smooth and that there are not too many twists and turns.
What is the difference between a hydraulic system and a pneumatic system?
Hydraulic systems are the use of liquids (water/oil) in an enclosed system under pressure while pneumatic systems use gas (mostly air).
How does a vacuum cleaner work?
There is a fan inside of the vacuum cleaner that creates low pressure air so the high pressure air goes in to the vacuum and all the dust is trapped in a filter.