Energy & Power

The Museum's collections on energy and power illuminate the role of fire, steam, wind, water, electricity, and the atom in the nation's history. The artifacts include wood-burning stoves, water turbines, and windmills, as well as steam, gas, and diesel engines. Oil-exploration and coal-mining equipment form part of these collections, along with a computer that controlled a power plant and even bubble chambers—a tool of physicists to study protons, electrons, and other charged particles.

A special strength of the collections lies in objects related to the history of electrical power, including generators, batteries, cables, transformers, and early photovoltaic cells. A group of Thomas Edison's earliest light bulbs are a precious treasure. Hundreds of other objects represent the innumerable uses of electricity, from streetlights and railway signals to microwave ovens and satellite equipment.

When incandescent lamp manufacturers want to make lamps with different ratings, 40 watt and 60 watt lamps for example, they simply alter the length of the coiled tungsten filament.
Description
When incandescent lamp manufacturers want to make lamps with different ratings, 40 watt and 60 watt lamps for example, they simply alter the length of the coiled tungsten filament. Since the filament is rather small in either case, there's little apparent difference in the two lamps. Compact fluorescent lamps (CFLs) are different.
This lamp is a demonstration triple-tube compact fluorescent lamp made by Philips about 1995. One way to increase the light output from CFLs is to make the tube longer. In this lamp the three tubes are connected by thin glass passages called bridge-welds, creating a continuous path for the electric current to travel. Using bridge-welds allowed the engineers to place the three tubes very close together, reducing the size of the lamp as a whole. The plastic base-skirt that houses the control electronics is clear so that whoever is demonstrating the lamp can show the electronic circuitry.
Lamp characteristics: Nickle-plated, medium-screw base with clear plastic skirt that houses an electronic ballast and a starter. Three fluorescent tubes are connected by bridge-welds. Included are two electrodes, mercury, and a phosphor coating. No external cover is placed over the tubes. Lamp was operational when donated.
Date made
ca 1995
date made
ca. 1995
maker
Philips Lighting Company
ID Number
1997.0389.30
catalog number
1997.0389.30
accession number
1997.0389
Reduced-mercury "Alto" fluorescent lamp. This is one of about 100 engineering samples.Currently not on view
Description (Brief)
Reduced-mercury "Alto" fluorescent lamp. This is one of about 100 engineering samples.
Location
Currently not on view
date made
1995-12
maker
Philips Lighting Company
ID Number
1997.0389.03
accession number
1997.0389
catalog number
1997.0389.03
Production "SON-AGRO" high pressure sodium lamp in original package. Made to aid plant-growth.Currently not on view
Description (Brief)
Production "SON-AGRO" high pressure sodium lamp in original package. Made to aid plant-growth.
Location
Currently not on view
date made
ca 1996
maker
Philips Lighting Company
ID Number
1997.0389.06
accession number
1997.0389
catalog number
1997.0389.06
Two incandescent lamps with "Soft White" coating. In original package. Rated at 15 watts.Currently not on view
Description (Brief)
Two incandescent lamps with "Soft White" coating. In original package. Rated at 15 watts.
Location
Currently not on view
date made
ca 1994
maker
Philips Lighting Company
ID Number
1997.0389.15
accession number
1997.0389
catalog number
1997.0389.15
"IQ Dimmer" incandescent lamp. Made with a computer chip in the base that allows the lamp to be set at four light levels.Currently not on view
Description (Brief)
"IQ Dimmer" incandescent lamp. Made with a computer chip in the base that allows the lamp to be set at four light levels.
Location
Currently not on view
date made
ca 1995
lamp maker
Philips Lighting Company
chip maker
Beacon Light Products, Inc.
ID Number
1997.0389.18
accession number
1997.0389
catalog number
1997.0389.18

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