Blackout Bulb Sheds Downward Beam of Soft Blue Light
Item
Silvered inside to provide a downward beam that cannot be seen from outdoors, a new blackout bulb offers soft illumination for the home during air raids. The 25-watt bulb is covered with a black silicate coating to prevent light leaks, and its tip is dark blue, shedding a blue light.
- Title (Dublin Core)
- Blackout Bulb Sheds Downward Beam of Soft Blue Light
- Article Title and/or Image Caption (Dublin Core)
- Blackout Bulb Sheds Downward Beam of Soft Blue Light
- Language (Dublin Core)
- Eng
- Temporal Coverage (Dublin Core)
- World War II
- Date Issued (Dublin Core)
- 1942-05
- Is Part Of (Dublin Core)
-
Popular Mechanics, vol. 77, n. 5, 1942
- pages (Bibliographic Ontology)
- 65
- Rights (Dublin Core)
- Public domain
- Source (Dublin Core)
- Google books
- Archived by (Dublin Core)
- Enrico Saonara
