Fonctionnement - Steamboat
Place the candles on the bottom of the boat (as shown) and light them up.
Fill the cigar tube halfway with water, screw the lid back and put the tube in place above the candles.
Avoid anything that could slow the boat movement : choose a water surface without any waves and large enough (ex: bathtub). Ensure that the neck of the bottle is always above water level . Put the boat on the water and balance it if necessary, moving slightly the candles. When perfectly balanced, add the "cabin & chimney" on the boat
Wait from 5 to 10 minutes until the steam is sufficient to move the boat forward.
Only lift the "cabin & chimney" or the cigar tube by holding the felt covered parts. Beware of the very dirty soot! As soon as the steam production stops, immediately blow out the candles . 
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En 2012 à Lutry, des élèves de 8e année ont réalisé le bricolage du bateau à vapeur avec le soutien d'Info-Energie (Service de l'énergie du canton de Vaud). Ils ont créé un panneau d'information pour illustrer leur bricolage lors d'une exposition organisée à l'attention des autres élèv...