(Excursions in Science No. 6)

Content: Laboratory experiments which later are applied to practical use are detailed here. Among the problems attempted and executed are the preparation of delicate springs from fused quartz and the steps in the manufacture of sodium lamps.

Countries:

United States of America

Genres:

Documentary

Runtime:

10 minutes

Year:

1940

Directors:

John Gilmour

Production companies:

General Electric,

A.O. Bondy

Actors:

Self - Narrator(voice)

Crews:

Director