Street light

device · 1807 · Industrial Revolution

Lighting streets (gas, arc, LED).

What it is made of

• LED — has part. LEDs.
• Photoresistor — has part. Switching on at dusk.
• Arc lamp — has part. The first electric street lights were arc lamps (the “Yablochkov candle”, 1878).

Principles and materials it uses

• Cast iron — is made of. Lamp posts are cast iron, later steel.
• Glass — is made of. The shade is glass.

Where it is used

• Stadium — is part of. Floodlights.
• Tunnel — is part of. Lighting.

History: what it evolved from and what it influenced

• Gas lamp — evolved from. Gas lamps.

Take Street light apart

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