FACT_1
China has been building what it calls "the world's biggest camera surveillance network".
Across the country, 170 million CCTV cameras are already in place and an estimated 400 million new ones will be installed in the next three years.
Many of the cameras are fitted with artificial intelligence, including facial recognition technology.
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FACT_2
A 6-year-old boy is making $11 million a year on YouTube reviewing toys.
The 6-year-old Ryan of YouTube's Ryan ToysReview made $11 million in revenue this year from his YouTube account, according to Forbes.
Ryan ToysReview tied for the eighth spot this year on Forbes' annual list of the highest-earning YouTube accounts.
The account began when Ryan, then simply a 4-year-old fan of toy-review videos, asked his parents why he couldn't also review toys on YouTube.
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FACT_3
Originally, Anders Celsius who invented the celsius scale took 0 degree as the boiling point of pure water and 100 degrees as the melting point. Fellow scientists knew it was incorrect, but didn't had the guts to confront him about it. So, they waited until his death to reverse it, making 0 degree the melting point and 100 degrees the boiling point.
Now you know