But unless you understand the electrical components and the rules and codes in their use for consumer safety, maybe, just maybe, it should be a little bit difficult to gain access to if your 10 years old.
Go buy some bloody tools and quit your whinging.
That's the cool thing about knowledge. We learn new things all the time. 70 years from now, things we think are true today will be laughed at as ignorant and naive.
Like an old Sears catalogs, old encyclopedias are fun snap shots into the past and worth the read.