Man sealing platinum wires into an incandescent light bulb

2024-09-03T17:16:31-04:00

Entitled "Sealing Platinum Wires into an Electric Glow Lamp," photographic reproduction depicts a man at a workbench sealing platinum wires into an incandescent light bulb. Information below the image explains how platinum and glass expand and contract at the same rates when heated and cooled, respectively, providing a tight joint.