Just imagine what you could do with a third arm.
You could sip coffee and type an email. You could scratch your nose and play Call of Duty. You could solve the Rubikâ€™s cube and conduct a symphony. You could play Ping-Pong and knit a sweater. Clearly, we could all use a third arm.
Fortunately, giving us a hand with a third arm might be a promise science can deliver on, like, soon. Thatâ€™s because engineers at the Advanced Telecommunications Research Institute in Japan recently showed off