Required Mathematical Intelligence

Chapter 43
A rectangular bucket has a volume of 1 liter.Some people also call it a liter or a liter.You are now asked to measure out exactly 0.5 liters of water using only this liter.What should I do to do this?

[Answer: It can be done by measuring obliquely with a lifting bucket.

Old habits of mind stick with us, and when we use a measuring cup or a rising bucket, we often measure volume flat.When you are frowning to answer this question, you may never have thought of changing the way the lifting bucket is placed and measured, and using the lifting bucket tilted. Although the change is small, it is a manifestation of breaking the habit and emancipating the mind.Sometimes it's a difficult step to take.Similar to this problem, when some goods are difficult to enter a narrow doorway in daily life, they need to be turned upside down or tilted forward, backward, left, and right.Those who don't know how to turn around, are in a dilemma, and are helpless can only show that their minds are rigid.Those who think innovatively will not be stumped by these problems. ]
(End of this chapter)