The hand truck leaned against the wall outside every warehouse on Canal Street. Two wheels. A steel frame. A flat blade at the bottom. You tilted the load back and the weight shifted to the wheels and a man who weighed a hundred and fifty pounds could move a thousand pounds of anything. The hand truck was the equalizer.

The delivery man and the hand truck were one machine. He came down the ramp with three cases of beer stacked higher than his head and the hand truck bounced on every crack in the sidewalk and nothing fell. The delivery man knew every crack. The delivery man had a map of the sidewalk in his arms. The hand truck was the extension of the man and the man was the engine of the truck.

My uncle moved furniture with a hand truck for thirty years. He said the hand truck teaches you physics. He said the secret is the tilt. Too far back and you lose control. Too far forward and the weight fights you. The perfect angle is forty-five degrees and at forty-five degrees a refrigerator weighs nothing. My uncle understood leverage before he understood the word.

The hand truck has no motor. The hand truck has no battery. The hand truck does not need to be charged or updated or synced. The hand truck needs a man with two hands and a ramp and a destination. The hand truck has been the same machine for two hundred years because the physics has been the same for two hundred years. You cannot improve the wheel.

They still use hand trucks on Canal Street. The same two wheels. The same steel frame. The last tool in the city that has not been replaced by something with a screen. The hand truck does not track your location. The hand truck does not send you notifications. The hand truck moves things from here to there and that is all it was ever asked to do.

See also: Hitching Post, Ice Wagon