Double glazing and gas lamp: what they have in common

1. Step 1. Double glazing — has part — Window glass. Two panes.
2. Step 2. Window glass — is part of — Solar panel. Tempered cover glass.
3. Step 3. Solar panel — uses — Photovoltaic effect. The photoelectric effect in a semiconductor.
4. Step 4. Photovoltaic effect — is used in — Photoresistor. Photoconductivity.
5. Step 5. Photoresistor — is part of — Street light. Switching on at dusk.
6. Step 6. Street light — evolved from — Gas lamp. Gas lamps.

Open Evothings