home physics

home physics ( a work in progress )
Some ideas about reminding people about the physics (and other science fields) that are visible and demonstrated to each of us on a daily basis.

Head of water in cistern:
Maybe you use grey water in your toilet system -> filling the cistern from buckets and bowls is good and uses the water twice but my point is that the 'power' of the water stream from the cistern into the toilet is stronger where the water is deepest. This is due to the 'head of water'. It is a story about the potential energy and the energy difference between the lowest and highest levels of water. This is analogous to the electrical charging of batteries from power supplies.