Some illustrations from antique science textbooks
These first few are from "The Boy's Playbook of Science". In spite of its name, it covers a wide range of topics at a fairly advanced level. It was published in 1870.
At one time, boys being boys would hitch a ride behind a carriage. It is not advisable to try this, even with rollerblades on - - though the insulation of the rubber wheels should reduce the shock that this boy is feeling. The doctor here has apparently rigged up an induction coil to the carriage's axle. Who can blame him? It is lost energy anyway.
We all know how mischieveous wizards can be. This one has apparently manifested a rather large lodestone in an inconvenient place for Sir Snivelsworth. The knight should try to keep up with the latest technology in his field - - if he were wearing kevlar body armor, this unfortunate situation could have been avoided.
In the 1870's, this is what passed for email. Only the lightest of persons were fit to work for the telegraph company.