Recent Trends in Transmission System

Is fishing season open already?

Your question is much too vague and general to warrant an answer here; time is valuable and can't be spent replying to every curiosity expressed by those who won't work at learning as much as those they question had to.

You may as well ask us to "tell me all you know"!

I am sure you can find much reading material on this site as well as by using Google or Bing to search for trends in "Transmission system", whatever that is.

Which: mechanical, electrical, communication, or other?

Wires still seem to be the favorite means of transmission.

(Making the wild assumption that you meant electricity transmission)

There has been a recent trend in knowledge transmission systems, well known to CR4 contributors, for receiving "carbon units" to transmit data blocks found in network sources to their tutorial hubs as bogus evidence of improvement of their local neural networks and "knowledge base".

A brief temporal search in the "grey matter" of this ancient "carbon unit" found this practice was known as "cribbing" as long ago as the mid 19th century (Christian Era) in ink-on-paper documents such as "Tom Brown's Schooldays". Also, that a counter to this "canker in the body politic" was originated by the ancient Chinese. EUTs [Examinees Under Test] were isolated from external data transmission and storage systems of all types and given the same questions. The answers were then assessed by systems independent from and unknown to the EUTs and those who set the questions.

Should this not be the "Transmission system" gova1467 was expecting, then a question like "Do you think power grid transmission voltages will go any higher?" may get more interest.

As Douglas Adams warned us, asking a question like "What is the answer to the riddle of the Universe?" is likely to get an answer like "42". Questions like "how does this point-contact diode really work so well" are more productive.