Handbuild spheres with terra sigillata from attic clay and crackle glazes rounded with copper wire. A dimmer diminishes the light from the old fashioned lamp and you can see only the incandescent wires.
The concept: Physicists rank civilizations in the universe according to the energy they are able to manage (Nikolai Kardashev scale, 1964).
Human civilization, which sucks its energy mainly from dead plants (oil, coal) or gases, with the effects known for life on its planet, is Type 0.
In case he does not self-destruct, but acquires collective intelligence and manages properly all the forms of energy given to him by the planet, it is estimated that in 100-200 years he will move to a Type 1 civilization.