Click on Key Concepts then use the arrow keys to switch slides. Click elevators and just watch.
https://www.britannica.com/science/buoyancy https://www.khanacademy.org/science/physics/fluids/buoyant-force-and-archimedes-principle/a/buoyant-force-and-archimedes-principle-article https://www.canada.ca/en/health-canada/services/environmental-workplace-health/occupational-health-safety/workplace-hazardous-materials-information-system.html https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/particletheory2.aspx#:~:text=All%20matter%20is%20composed%20of,motion%20in%20all%20physical%20states.https://www.britannica.com/science/Pascals-principle https://www.stanleyelevator.com/blog/hydraulic-elevators/#:~:text=What%20is%20a%20Hydraulic%20Elevator,travel%20inside%20of%20a%20cylinder https://science.howstuffworks.com/transport/engines-equipment/elevator6.htm https://elevation.fandom.com/wiki/Hydraulic_elevator.