Here is a question about this article: Modern archaeology has led to the discovery of Han artwork portraying inventions which were otherwise absent in Han literary sources. As observed in Han miniature tomb models, but not in literary sources, the crank handle was used to operate the fans of winnowing machines that separated grain from chaff. The odometer cart, invented during Han, measured journey lengths, using mechanical figures banging drums and gongs to indicate each distance traveled. This invention is depicted in Han artwork by the 2nd century AD, yet detailed written descriptions were not offered until the 3rd century AD. Modern archaeologists have also unearthed specimens of devices used during the Han dynasty, for example a pair of sliding metal calipers used by craftsmen for making minute measurements. These calipers contain inscriptions of the exact day and year they were manufactured. These tools are not mentioned in any Han literary sources.
What is the answer to this question: What use did the odometer cart provide?
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So... measured journey lengths

Here is a question about this article: However, performance enhancements cannot be generalized as the benefits and limitations of the system are dependent on many factors. One problem is that the system is subject to gaming. Sometimes, one person enters the destination for a large group of people going to the same floor. The dispatching algorithm is usually unable to completely cater for the variation, and latecomers may find the elevator they are assigned to is already full. Also, occasionally, one person may press the floor multiple times. This is common with up/down buttons when people believe this to be an effective way to hurry elevators. However, this will make the computer think multiple people are waiting and will allocate empty cars to serve this one person.
What is the answer to this question: Why is this a bad practice?
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So... this will make the computer think multiple people are waiting and will allocate empty cars to serve this one person

Here is a question about this article: Japanese comics and cartooning (manga),[g] have a history that has been seen as far back as the anthropomorphic characters in the 12th-to-13th-century Choju-jinbutsu-giga, 17th-century toba-e and kibyoshi picture books, and woodblock prints such as ukiyo-e which were popular between the 17th and 20th centuries. The kibyoshi contained examples of sequential images, movement lines, and sound effects.
What is the answer to this question: What is ukiyo-e an example of?
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So...
woodblock prints