Keywords pulleys, fixed pulley, movable pulley, block and tackle, force, lifting, simple machines, weight, mechanics Email us at [email protected] if you have questions about the footage and are ...

Perhaps the humble block and tackle — multiple parallel pulleys to reduce the effort of lifting — is not such a common sight as it once was in this age of hydraulic loaders, but it remains a ...

Perhaps the humble block and tackle — multiple parallel pulleys to reduce the effort of lifting — is not such a common sight as it once was in this age of hydraulic loaders, but it rema… ...