What I have learned today [2015/7/6]

1. Chinese and Hindi are the most spoken languages in the world. English is spoken 101 countries.

2, Air conditioner was invented in 1925.

3. Amazon is having prime day! Wow...this is really going to disrupt the retail market. Go Amazon! Hopefully, it doesn't increase impulsive shopping.

4. A ultraviolet light device has been created to sterilize rooms. We should install them in every household and public area. Yay, less infection!

5. Before radios, pilots navigated using large concrete arrows.

 

From Snapshot Serengeti