This video explains why a honeybee dies after stinging someone.

This video explains why we shouldn't eat fruit that has gone bad.

This video explains why picking our noses not only doesn't look nice, but can also be harmful to our health.

This video explains the different circumstances under which hair might fall out.

This video explains how giraffes evolved to have the long necks they have today.

The giraffe's long neck serves many interesting functions.

This video explains why fresh vegetables are important to the body's overall health.

This video explains why a fish's body is covered in mucus.

This video talks about how to build self-confidence. Don't mind what other people think of you and just be yourself.

This video talks about how to build self-confidence. Don't mind what other people think of you and just be yourself.

A 75-year-old retired school teacher collects garbage every day and donates the money to a school for poor children. His charitable deeds have earned him recognition in the local newspaper and several awards. His speaking is difficult to understand, but still an interesting perspective from a different generation.

The interview continues and LiuYi shows us how he collects garbage as well as the school garden he has created.

What is education equality and how do we achieve it?

Professor Lang illustrates the case of education inequality using the case of China's 985 and 211 schools as an example.

Professor Lang explains why the current system of central government funding to China's top universities is not equal.

Professor Lang compares enrollment rates in Henan and Shanghai to illustrate China's problem of education inequality.

Students face discrimination both before entering university and after graduating. Why?

Inequality in education is often due to unequal opportunities and developmental disparities in different parts of a country.

Guests discuss inequality between educational opportunities for children in the cities versus villages.

The problem of education inequality in China also extends to students wishing to study abroad.

A professor from the South China University of Technology speaks on inequal education resources.

A heated debate arises over whether the inequality issue is a school problem or geographical problem.

A guest from an American university speaks on education equality and fairness.

Several girls are asked if they would give their contact information to a boy who strikes up a conversation with them in the street.