Share the most random knowledge ever

Share the most random, unique, weird, interesting, and fun facts and bits of knowledge!!! 

Rules: No spamming or inappropriate content. Trolls and disruptors will be reported & blocked from posting. Also do not belittle or mock other people or insult anyone. 

Have fun!

9-11 was an insid- *Not able to complete this thought*

9+10 is mathematically 19

And did you know that the tallest building is taller than any other buildings in the world?

I just started Minecraft on keyboard and mous

Did you know that a woodchuck can chuck as many woods as it wants if a woodchuck can chuck woods?

this is actually a W thread

teaching the class useless information might be good, because no one can even keep basic knowledge in their heads

From memory, the first I think 55 digits of pi are 3.141592653589793238462643383279502884197169399375105820

Qian Xuesen, one of the developers in the Two Bombs, One Satellite project, had been deported from the USA in 1955 i belive

Rabbits have a blind spot right in front of them and they see really well from the side so if you want to approach a rabbit you should try to do it slowly and from the side, which also means they don't see their food right in front of them as they eat it, but they still navigate eating it by touch and smell, also they can hear way better than we can, especially ultrasonic high pitched sounds that we can't detect

Also they often sleep with their eyes open but if they are relaxed they can sleep with eyes closed.

My rabbit specifically, as he's drifting off into sleep his eyes gradually droop more and more, until they completely close. I'm not sure if other rabbits have droopy eyes but because of that, I can tell how tired he is or when he's about to fall asleep

Rabbits actually shouldn't eat carrots as their main diet or too many carrots, it's just a treat and 80% of their diet should actually be hay. Also most people think they are unemotional animals but they can react very emotionally (my rabbit gets very upset when it's nail clipping time and very excited about food for instance) but they just don't have vocal cords to be overly noisy with.

The Battle of Tai'erzhuang was the first Chinese victory in the Second Sino-Japanese War
Its debated whom to credit for this victory
Some have taken a fancy to the top commanders Bai Chongxi and Li Zongren
Others say they were incompetent and hail mid-level commanders Sun Lianzhong, Zhang Zhizhong, and Tang Enbo

Chiang Kai-shek is just a weird romanization of the name Jiang Jieshi
He also had many other names - Jiang Ruiyuan, Jiang Zhoutai, Jiang Zhiqing, Jiang Zhongzheng

Sun Yat-sen is just a weird romanization of the name Sun Yixian
His other names are Sun Zhongshan and his signature is Sun Wen

The chinese intellectual Dai Jitao visited India a couple times, and was close friends with Mahatma Gandhi