Slotted Keyless Cam Lock, For Door Thickness (In.) 1/4 with Bright Nickel Finish Keyless Slotted Cam Locks. Use Keyless Slotted Cam Locks for drawers and doors that do not require a key for locking. Sets include 2 double-punched cams for mounting latch flexibility, plus hardware. 180Â° cam rotation.
propulsion. n. 1. the act of propelling or the state of being propelled. 2. a propelling force. [C15: from Latin prÅpellere to propel].
NASA engineers have finished testing a new ion-propulsion system for earth-orbiting and interplanetary spacecraft. The system is more powerful and fuel-efficient than its predecessors, enabling it to travel farther than ever before. Ion propulsion works by electrically charging, or ionizing, a gas using power from solar panels and emitting the ionized gas to propel the spacecraft in the opposite direction.