Size of this preview: 800 × 560 pixels. Other resolutions: 320 × 224 pixels | 640 × 448 pixels | 978 × 685 pixels.
Original file (978 × 685 pixels, file size: 763 KB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description | |
| Date | Unknown date |
| Source | NIST Special Publication 250-67. |
| Author | National Institute of Standards and Technology (NIST). |
Licensing
|
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
|
 |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:03, 6 September 2009 | | 978 × 685 (763 KB) | Xenon54 | {{Information |Description={{en|1=WWV transmitter building in Beltsville, MD.}} |Source=http://tf.nist.gov/timefreq/general/pdf/1969.pdf - NIST Special Publication 250-67 |Author=NIST |Date=? |Permission={{PD-USGov-NIST}} |other_ |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on es.wikipedia.org
- Usage on ja.wikipedia.org
