Como medimos la longitud: ¿que es la longitud?

The video tutorial explains the concept of length, which is the measurement of an object from end to end. It highlights that all solid objects, including the human body, have a measurable length, referred to as height when measuring from feet to head. The tutorial also introduces distance as another form of length measurement, describing it as the longest length between two points. Examples include runners covering a distance of 5 km. The video concludes by mentioning various tools and units used for measuring length and distance.

What new insight or understanding did you gain from this video?