"Jeux scientifiques." . . "Magnetism Experiments." . . "Sciences Expériences pour la jeunesse." . . "Électricité." . . . "The knowhow book of experiments with batteries & magnets" . "The knowhow book of experiments with batteries & magnets"@en . "Jeux électo-magnétiques" . . . . "The KnowHow book of batteries and magnets"@en . . "Instructions for making games and models operated by a magnet or battery, which demonstrate principles of magnetism and electricity."@en . "Circuits and switches / making a lighthouse and a lantern / stop-go traffic lights / morse code transmitter / flashing robot." . "The knowhow book of batteries and magnets : [safe and simple experiments, models and games]"@en . . . . "Know how book of experiments with batteries and magnets"@en . . . . . "Juvenile works" . . . "Juvenile works"@en . . . . . . . . . . . . . . . . . . . "Elektrotechnik ; Batterie, Akkumulatorenbatterie (Stromquelle) ; Magnetismus, Elektromagnet (Elektrotechnik) ; elektrischer Kontakt." . "The know how book of batteries and magnets"@en . . . . . . . . . . . . . "The knowhow book of batteries and magnets"@en . "The knowhow book of batteries and magnets" . . "Batteries and magnets"@en . "Knowhow book of batteries & magnets"@en . "Batteries & magnets"@en . . "Instructions for making games and models operated by a magnet or battery which demonstrate principles of magnetism and electricity."@en . "Instructions for making games and models operated by a magnet or battery which demonstrate principles of magnetism and electricity." . . . . . "The knowhow book of batteries and magnets : safe and simple experiments, models and games"@en . . . "The know how book of batteries and magnets : safe and simple experiments, models and games" . . "Jeux électromagnétiques" . . . . "Jeux electromagnétiques" . . . . . . . "Jeux électro-magnétiques" . . . . "Electricity Experiments." . . "Magnétisme." . .