Humans use their fingers for some of their most delicate communication. Typing on a keyboard or phone, conversing through sign language, or performing on a guitar or piano require finely-tuned ...
I didn't know how much I didn't know about sign language. When we were teenagers, my friends and I pretended we knew sign language after we had studied those little cards, about 2.5 inches by 3.5 ...
Some 500,000 Americans use American Sign Language (ASL). For deaf users of ASL, communication with those not fluent in the language can be a challenge. Though most deaf-born Americans learn spoken ...
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