As he offered his thanks to the crowd during a Trump inaugural event, Musk put his right hand to his heart, then extended his hand to the crowd with his palm slightly raised. He turned around and made ...

or free up their own hands for another task Arms mimic a wearer's movements but could one day anticipate actions to hold doors open for humans with their hands full, for example From changing a ...

Chest press. Lay with your back flat on the floor and arms extended out to your sides, bent at a right angle at the elbow, forearms pointed toward the ceiling, hands holding dumbbells. Press the ...