Limestone blocks y gafas: qué tienen en común

1. Paso 1. Limestone blocks — forma parte de — Pirámide egipcia. Limestone and granite blocks of masonry.
2. Paso 2. Pirámide egipcia — utiliza — Palanca. Levers were used to move the blocks.
3. Paso 3. Palanca — se utiliza en — Telégrafo óptico. The arms were moved by a system of levers and rods.
4. Paso 4. Telégrafo óptico — utiliza — Telescopio. Signals were read through a telescope.
5. Paso 5. Telescopio — evolucionó de — Gafas. The first telescopes were assembled by spectacle makers.

Abrir Evothings