Rain collecting funnel e hollerith tabulator: o que têm em comum

1. Passo 1. Rain collecting funnel — faz parte de — Rain gauge. It collects precipitation over a known area.
2. Passo 2. Rain gauge — faz parte de — Weather station. A rain gauge.
3. Passo 3. Weather station — é utilizado em — Weather forecast. Observations.
4. Passo 4. Weather forecast — utiliza — Electrical telegraph. Collecting reports by telegraph.
5. Passo 5. Electrical telegraph — tem como parte — Relay. Relays boosted the signal on long lines.
6. Passo 6. Relay — faz parte de — Hollerith tabulator. Relays controlled the sorting box.

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