A new mind-controlled prosthetic hand from researchers at Case Western Reserve University is so advanced that amputees can feel detailed textures and handle delicate objects. And yes, it sort of looks like Luke Skywalker's hand.
Ebola is not a disease that we seriously need to be concerned about. The graphic above shows it clearly: while a measles patient can infect a maximum of 18 people on average, an Ebola patient can only infect two.
With all those gleaming, stainless-steel tools readied for painful prodding, few people look forward to visiting the dentist. But modern dentistry is a walk in the park compared with old-school methods of treating oral maladies.