An overview of the international black tea grading system

15 Feb 2022 Wen /Asherah I have always wondered why the British claim to like tea but have never seen a complete tea rating system in the UK.
The skills of living alone

15 Feb 2022 Wen /Little Iwai I live alone most of the time. A person's life is often caught in a vicious circle, for example, once they develop unconsciously bad habits, they will
Wash the test tube, why not gather into water droplets, nor flow down?

14 Feb 2022 Water droplets on different surfaces look different.
Brainstorming: how to let knowledge into your mind?

14 Feb 2022 A brain. It's actually about how to get a molecule into the brain.
Molecular Story: the five Ring elements in the name of the Olympic Games

14 Feb 2022 You have one more ring than the fourth Ring Road.
Three questions about interstellar travel

14 Feb 2022 From Douban Film Review, author: Ai Xiaoke. Scientific question Nolan's "Interstellar Space" has two details that move me very much. One is Enduranc.
Bean knowledge: where are the eyes of scallops?

14 Feb 2022 Don't see the scallops and just think about the vermicelli garlic! Let's learn a little about scallops. ) Picture and Scallop Swimming Map)
Life question: why does the crab turn red when it is ripe?

14 Feb 2022 Why are crabs so popular?
Life question: dirty hair + shampoo why not foam?

14 Feb 2022 The dirtier the hair is, the less foamy the shampoo is because the surfactant is not available.
The condom of 1844 is made of sheep intestines! Want to know how it's made?

14 Feb 2022 A little disgusting but powerful handmade that has been lost (there is an introduction to the practice, but it is not recommended to try …. ) the moving graph is multi-p
Bean knowledge: penicillin used to be "see you tomorrow"

11 Feb 2022 A recycling
Can't find a home without navigation? Then you have to thank the theory of relativity.

11 Feb 2022 What does the theory of relativity have to do with life? The answer may be in your hand:)
Foodie knowledge: a little knowledge about popcorn

11 Feb 2022 How did corn turn into popcorn?
The "smell" on the tip of the tongue

11 Feb 2022 What we call food flavor is actually a mixture of various senses and receptors.
Nanorace: scientists are going to drive fast, too.

11 Feb 2022 Drive a molecular car!
How did the strange smell of "asparagus urine" come from?

11 Feb 2022 Asparagus, a vegetable that gives people's urine a strange smell.
Delicious Science: how is jam made?

11 Feb 2022 To make thick jam, you need enough pectin, as well as the right sugar and acid.
If you scratch a rat, they will also giggle.

11 Feb 2022 Scientists' mystery research activity: scratching rats
Late-night bean knowledge: how does a rotten corpse turn green?

11 Feb 2022 There is no physical picture, please rest assured to watch ~
Moorday: how is the Avogadro constant measured?

10 Feb 2022 It's Moore Day again. Do you remember how much one mole is?

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