This question refers to the role of scholar-official that existed in imperial China. These people were politicians, bureaucrats and officials that were appointed by the emperor to perform various political duties. They were generally men who possessed academic degrees.
An example of a technological development that an emperor should know about would be the invention of gunpowder during the Tang dynasty. The report would look something like this:
<em>"Emperor:</em>
<em>I am writing to inform you of a recent development that might prove useful to the future of your dynasty. We have received information from alchemists who have discovered a type of material that is highly explosive. They discovered such potential weapon accidentally, but were eager to report their findings for two main reasons: first, this material can most likely be used as a weapon in order to defeat our enemies, and second, we might be able to use it in other industries if we learn to control it. There is a possibility of even using it in medicine. I urge you to pay attention to such development, as it might prove to be very important."</em>
I believe the answer is Britain
If the inside and outside rearview mirror in the vehicle is adjusted, it means that you can see the vehicles on each side and at the back. This will allow you to see the cars clearly and know when is the right time to turn left or right. And if you're on the proper distance from the cars behind your vehicle.
