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But the ones in use now lean on hydraulics or pneumatics to change the shape of the "hand" to pick up the item.

Inspired by a hybrid of several technologies — pneumatics, mechanical springs and hydraulics — the semi-automatic rifle produces almost no recoil by transferring that energy into expelling shells and chambering the next rounds.

HaptX — a longtime player in the virtual and augmented reality industry — says parts of the glove appear “substantively identical” to its own work using pneumatics to simulate physical touch.

The curriculum includes: modules on blueprint and schematics reading; sensors, pneumatics and hydraulics; and advanced troubleshooting.

Jacobs’ specialty was designing engine components, hydraulics, pneumatics and propulsion systems.