How to Measure the Gravitational Constant

There are all these amazing numbers that seem to sort of control how the universe behaves and what it does. In some cases, we don't even know exactly what they are, right? That's right. Sometimes we can do experiments to measure them very, very precisely. But some of these are a little slippery. Some of them are very difficult to actually nail down, especially one of the most fundamental constants in the universe. Do you think G has anyone asked G of it, minds being called big G?