Street light
| Description: |
For thousands of years people wanted to travel safely at night. In 1417 Sir Henry Barton ordered London households to hang lanterns. Four hundred years later, gas powered street lights were used. This electric streetlight hung from a large curved pole in Chicago in the 1920s! Today city engineers worry about too much light, also called light pollution, rather than too little. Light manufacturers are working on new technology to save electricity. |
|---|---|
| Source: |
http://www.digitalindy.org/cdm/ref/collection/tcm/id/214 |
| Collection: |
The Children's Museum of Indianapolis |
| Rights: | https://creativecommons.org/licenses/by-sa/3.0/; |
| Copyright: |
Creative Commons (CC By-SA 3.0); |
| Subjects: |
Traffic signs and signals Chicago (Ill.) |
Further information on this record can be found at its source.
This project is made possible by a grant from the U.S. Institute of Museum and Library Services, administered by the Indiana State Library.