Ingenium - Engien - Engine

Machina is an artifact that operates against the nature. It is the Latin translation of the ancient Greek word mêchanê.
"Deus ex machina" is a device that - in Greek theatre - allows the Gods to enter on the scene of the human life.
Machina in Ancient World assumes a negative value (as the war machines, as the Trojan Horse).

Only in more modern times the word machine (macchina, in Italian) assumed a neutral value, as a synonim of engine.

Ingenium is the useful invention of a device that helps performing some action.
Engien is the ancient French word that translated this concept in the Middle Age, hence the English engine.

Engineer (and the Italian word ingegnere) come from the Latin word ingenium.

The Secret Life of Machines

The Vacuum Cleaner on YouTube:

Part one
Part two

The History of Vacuum Cleaners.

Chinese words # 3:
Vacuum cleaner = 吸尘器 (Xīchénqì) i.e. "absorb dust device"

The artifact, the tool, the machine

Albrecht Duerer, Melencolia (1514)

The artifact (artefatto (IT); artefact (FR); artfacto (SP); Artefakt (DE); 品, 伪 (Chinese))is the produce of an intentional activity that modifies the natural reality.

The tool (utensìle (IT); outil (FR); Werkzeug (DE); utensilio (SP); 工具 (Chinese)) is an artifact that extends the human capabilities, a prosthesis of the body.

The machine, or better the engine (macchina (IT); machine (FR); maquina (SP); Maschine (DE); 机 (Chinese)) is a device that by using a resource transforms the structure of a system.

HOMEWORK: find in the Duerer engraving Melencoloia the artifacts, the tools, and the machines.

Here the first reply by Vito Domenico Vinella.