#870 Why does a pulley make weights easier to lift?
Why does a pulley make weights easier to lift? They increase mechanical advantage. The pulley is an invaluable invention that has helped humankind immeasurably. Without it, many of the things…
Why does a pulley make weights easier to lift? They increase mechanical advantage. The pulley is an invaluable invention that has helped humankind immeasurably. Without it, many of the things…
I learned this today. The International Prototype of the Kilogram, kept in Paris, is not accurate enough to be the standard for all kilograms around the world. Different measures for…