I came up with another idea that hadn't been taken - it's hanging a slinky from a hanger with a mass on the bottom and letting it stretch vertically, something like in the diagram seen here
link
do you think that this could be semi-accurate?
I am always one for cutting corners, but yup somebody is connecting two 2-liter soda bottles and filling it with sand. his friend tried to do sugar and it's not allowed
It's still a possibility to do something involving marbles. One other person is already doing something where they mark on a track every second, and as the marble falls they count how many seconds the marble passes through. A good idea, but unfortunately I can't do the same thing
well i was considering using a pendulum, but the period is bound to change during a duration of up to 40 seconds - I am allowed only a 2 second grace period
I need to design and create some sort of device to measure an interval of time between 10 and 40 seconds. I can't use any electrical or mechanical things. I had ideas of puting water in a funnel and letting it fill up a cup in which I've measured how much water equals a second for example. I...