Artificial arm giving thumb up and down

human arm human limb robot cyborg artificial intelligence automated prosthetic equipment artificial limb - body part hand health technology medical equipment arm metal human skeleton human body part electronics industry technology invention design index finger 4k resolution ideas gesturing palm of hand motion polishing black background film - moving image industry innovation shiny amputee symbol slow motion alpha channel engineering cut out science horizontal healthcare and medicine fantasy scientific experiment positive emotion progress care problems finance finance and economy usa checklist mistake danger ok sign arrival