Dropping your nuts from a balcony

Nuts (used with bolts) are the idea weight to drop from height to determine gravitational acceleration. Tied to string it then allows measurement to be efficiently made as you time the drop to tug duration and the retrieve the weight.  Having strings link together in 1 metre lengths then make variation of this factor a breeze. Then have one nut fall tug the next nut can allow a cascade of nuts to fall leading to an accurate experiment. Podcast