Prism and car: what they have in common

1. Step 1. Prism — is part of — Spectroscope. A prism.
2. Step 2. Spectroscope — uses — Bunsen burner. The burner’s colourless flame made it possible to study the spectra of elements.
3. Step 3. Bunsen burner — uses — Venturi effect (Bernoulli’s principle). Air is drawn in by the jet of gas.
4. Step 4. Venturi effect (Bernoulli’s principle) — is used in — Carburettor. In the throat of the venturi the pressure drops and draws in petrol.
5. Step 5. Carburettor — is part of — Car. In older cars the carburettor mixed petrol with air for the engine.

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