EntityQ2397030· pop 28· linked from 154 articlesblock and tackleSign in to savedevice consisting of two pulleys (or in a borderline case only one movable pulley); device multiplying force; machine used to lift heavy loadsConnectionspulleyEntityforceEntityInternational Standard Book NumberEntityboatEntityWayback MachineEntityropeEntityfrictionEntityHero of AlexandriaEntitycraneEntitysailing shipEntityergonomicsEntitymetre per secondEntitycarabinerEntitywinchEntitywire ropeEntitymechanical advantageEntityplain bearingEntitytripodEntitygear trainEntitydrilling rigEntityCategoriesKinematicsMachinesSimple machines