00:01
So our grandfather's clock or grandfather's pendulum is running a bit slow.
00:08
And we need to fix this by altering the pendulum to make it faster.
00:16
How do we go about this? well, since we're dealing with a pendulum, and we're dealing with the time that the pendulum is taking to go about its motion.
00:28
Our best equation here is going to be the period of the pendulum.
00:32
Pendulum.
00:34
Our period, for pendulums, are, is the 2 pi times the square root of l and g, where l is the length of the pendulum, and g is our gravitational constant.
00:55
T, our period, is defined as the time that it takes for the pendulum to reach one full cycle, meaning that it goes from its position here, and it goes to the other side and then it returns.
01:12
Since our clock is running a bit slow, we have to increase, or sorry, we have to decrease the time that it takes to make one full sweep or one cycle.
01:23
So we were trying to decrease, trying to decrease our period...