Guess My Number

May 14, 2022

I wrote down a number on a piece of paper, “It’s a number between 1 and 100.” I asked my son, “Your job is to guess the number. Each time you make a guess, I can tell you whether it’s correct, or if your guess is higher or lower than my number. How many times […]

The Butterfly Effect

March 11, 2022

“Have you heard about the Butterfly Effect?” I asked my son. “What is it?” “You know weather is highly unpredictable, especially in the longer term, right? Weather forecast is reasonably accurate for the next few days, but it is not accurate at all to predict the weather a month later.” “Right, that’s why the weather […]

Why are manhole covers round?

January 15, 2022

I was jogging outside with my son on the street and we saw a manhole. I recalled this famous interview question first popularized by Microsoft in the early days and then adopted by other companies: Why are manhole covers round? So I asked my son. “Because it looks nice?” “It’s more than that. There is […]


December 25, 2021

The Romance of Tiger and Rose 传闻中的陈芊芊

October 7, 2021

Recommendation: ⭐⭐⭐⭐⭐ As one of the top shows in China in 2020, the success of The Romance of Tiger and Rose propelled Zhao Lusi into fame. She played a young screen writer, who fell asleep and woke up as her own character – Chen Qian Qian (陈芊芊). A princess in a female-dominant Rose kingdom, Qian […]


December 25, 2021

Dating in the Kitchen 我,喜欢你

October 7, 2021

Recommendation: ⭐⭐⭐⭐⭐ A young chef Gu ShengNan, played by Zhao Lusi, won the taste and the love from a charming CEO. This is a romantic comedy with a typical modern Cinderella story. The show also has many professional renderings of Chinese cuisine, which makes it a visual treat. Show Title: Dating in the Kitchen Chinese […]

Mobius Band

September 4, 2021

“How many sides does a paper have?” I asked my son, who was watching TV. “2” “What if I tell you I can make a paper have ONLY one side?” “No Way!” “Come and I will show you how to make a Mobius Band.” Well we are in the year 2021, so there is a […]

How tall is the Great Pyramid?

January 8, 2022

This is the second episode of the Greek mathematicians series. Today’s mathematician’s name is Thales. He is also a philosopher and astronomer. He is considered “the first” Greek philosopher and is sometimes referred to as the Father of Science. After the introduction, I started to tell my son the story of Thales. “Thales loved travelling. […]


December 25, 2021