How to download a file with multiple parts?

Question

Computer networks

There is a certain list of http links with files. They need to be downloaded in order and glued into one file. The task is trivial, and is solved with wget and > file. But when there are too many such "pieces", the download speed becomes negligibly low.
I would like to somehow parallelize the process. For example, how is it done in the same torrent... Are there any implementation examples? JP doesn't matter

Answer 1

code.activestate.com/recipes/114217-multi-segment-...
codereview.stackexchange.com/questions/57510/comma...
multithreading only works if the server supports it

Answer 2

Look at aria2 or axel .