Bronze toads with open mouths y cinta transportadora: qué tienen en común

1. Paso 1. Bronze toads with open mouths — forma parte de — Sismoscopio de Zhang Heng. They catch the ball when it drops.
2. Paso 2. Sismoscopio de Zhang Heng — está hecho de — Bronce. A bronze vessel.
3. Paso 3. Bronce — es material para — Casco. Ancient helmets were copper and bronze.
4. Paso 4. Casco — está hecho de — Cuero. Helmet liners and simple helmets were made of leather.
5. Paso 5. Cuero — es material para — Cinta transportadora. The first belts were leather.

Abrir Evothings