Electromechanical dial counters y cometa: qué tienen en común

1. Paso 1. Electromechanical dial counters — forma parte de — Tabuladora de Hollerith. Dials that count the pulses.
2. Paso 2. Tabuladora de Hollerith — utiliza — Tarjeta perforada. The 1890 census data was encoded on punched cards.
3. Paso 3. Tarjeta perforada — está hecho de — Papel. Punched cards are stiff card.
4. Paso 4. Papel — es material para — Globo aerostático. It was lined with paper on the inside.
5. Paso 5. Globo aerostático — está hecho de — Seda. The Montgolfier balloon was fabric lined with paper.
6. Paso 6. Seda — es material para — Cometa. Chinese kites were silk.

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