Deaf people hear for the first time:

[Kingofalldems]

Link to tweet

[jpak]

1. Yay!!!

[drray23]

2. its amazing but how do they understand ?

if they were deaf at birth how can they understand spoken language having never heard it before ? A baby/toddler learn over time but these people understand it immediatly.

I wonder if they lost their hearing as kids and this technology gave it back to them just now.

[Cicada]

3. Some lost hearing, some understand from lip reading

[sarge43]

4. Beautiful, simply beautiful n/t

[zanana1]

5. That's just amazing.

I wonder if it's a little scary, too?

[Skittles]

6. sweet

I had to google why people cry "tears of joy"

http://www.telegraph.co.uk/news/science/science-news/11227082/Why-do-we-cry-tears-of-joy.html

[SethH]

7. I love when the tough guy broke down