jiao

Some components are quite prolific as phonophores: 交 jiao, 方 fang, and 青 qing come to mind.

Similarly, 1/10 of one chinese yuan is called a jiao 角, and 1/100 is a fen 分.

Peterburg in Russia, Waterloo in Canada, Zhejiang University and Shanghai Jiao Tong in China, and especially Warsaw University in Poland.

You're not advised to assume that a character incorporating them is pronounced jiao （校，效，咬）, fang (旁), or qing (精，猜 [cai1!]), though.

Indeed, you are correct in mentioning the range from five jiao to two yuan.

Not 5 to 2 yuan in the 90s, more like 5 to 2 jiao.

It wasn't until 1998 when a rural youth named Ge Rui was charged three jiao at a restroom in Zhengzhou Railway Station.

To seek justice for this three-jiao fee, Ge Rui personally paid 50 yuan for the lawsuit, taking Zhengzhou Railway Bureau to court.

I remember 5 jiao bathroom places being common into the late 00s in Beijing (and literally why I would carry a few 5 jiao notes whenever I went out, along with tissue).

It was trivial for her too; she never saved up enough to buy anything (most likely candidate: a roll of mentos, which would have cost 20 jiao.

My sister visited me over the summer a couple years ago, when she was 8, and I let her hold on to the jiao I received as change (US equivalent value: roughly 1.5 cents to the jiao).

Such an analysis might also cover other no-obvious features of pinyin, like why jiao and yao have similar vowel sounds but different spellings and the nv/yu and nu/wu similarities and differences.

At the bottom of the article, it's mentioned that Zhenyuan Xu from Shanghai Jiao Tong University in China is one of those "four others".

Jiao's "Infinite-dimensional methods in amassing vast bags of gold" is unsurpassed.

"crazytan" is the LinkedIn profile of a security software engineer named Jia Tan in Sunnyvale working at Snowflake, who attended Shanghai Jiao Tong University from 2011 to 2015 and Georgia Institute of Technology from 2015 to 2017.

People always forget that back when OpenAI accused DeepSeek of distillation, o1's reasoning process was locked down, with only short sentences shared with the user as it "thought." There was a paper published in November 2024 from Shanghai Jiao Tong University that outlined how one would distill information from o1[1], and it even says that they used "tens of thousands" of o1 distilled chains.

(Jiao are common in prices; fen are so rare that you could live your life without being aware of them.