Elasticity and greenhouse: what they have in common

1. Step 1. Elasticity — is used in — Beam. Bending.
2. Step 2. Beam — includes — I-beam. A beam.
3. Step 3. I-beam — is part of — Steel frame. I-beams.
4. Step 4. Steel frame — works like — Gothic cathedral. A skeleton system: the frame carries the load, freeing the walls for windows.
5. Step 5. Gothic cathedral — has part — Window glass. Stained glass.
6. Step 6. Window glass — is part of — Greenhouse. It lets light in and holds heat.

Open Evothings