lightbulb
electric incandescent lamp based on a glowing metallic filament enclosed within a glass shell filled with an inert gas such as nitrogen. See incandescent lamp; lamp.- Robert; and Colling, Charles Colling
- Robert; and Colling Colling, Charles
- Robert; and Lynd, Helen Lynd
- Robert; and Lynd Lynd, Helen
- Robert Andrews Millikan
- Robert Armin
- Robert Arnauld d'Andilly
- Robert A. Taft
- Robert A Toombs
- Robert Baddeley
- Robert Baillie
- Robert Bakewell
- Robert Baldwin
- Robert Balfour
- Robert Ballard
- Robert Barclay
- Robert Barnes
- Robert Benchley
- Robert Blair
- Robert Blake
- Robert B. Laughlin
- Robert Bloomfield
- Robert Bly
- Robert Bolt
- Robert Bosch