- Your research paper is written by certified writers
- Your requirements and targets are always met
- You are able to control the progress of your writing assignment
- You get a chance to become an excellent student!
Essay Details:
Essay text:
This clock is named NBS-1.
1954 NBS-1 is moved to NIST's new laboratories in Boulder, Colo.
1955 The National Physical Laboratory in England builds the first cesium-beam clock used as a calibration source.
1958 Commercial cesium clocks become available, costing $20,000 each.
1960 NBS-2 is inaugurated in Boulder; it can run for long periods unattended and is used to calibrate secondary standards.
1963 The search for a clock with improved accuracy and stability results in NBS-3.
1967 The 13th General Conference on Weights and Measures defines the second on the basis of vibrations of the cesium atom; the world's timekeeping system no longer has an astronomical basis...
Showed 18% of text Buy database access to get full access to all 184 988 essays
Calculate a fair price for your order
Do you need an essay?
A professional team of writers is able to craft custom essays from scratch according to your instructions. We are ready to satisfy writing needs of every demanding customer.
Do you need many essays?
The product provided is intended to be used for research or study purposes. Get instant access to over 200,000 papers.
Common topics in this essay:
- History Of Atomic Clock
- history of the Atomic Bomb
- History Atomic Bomb Essay
- My Clock
- Social Clock
- a clocky clock
- Clock Arithmetic
- 12'O Clock High
- 12 O'Clock High
- Deconstructing the clock
- Galileo's Water Clock
- Twelve O'Clock High
- strategy clock:starbucks
- Literary Comparison Of A Clock
- U.S. National Debt Clock
Feedback of people who used our services.
Similar Essays:
3 pages / 612 words |
|||
2 pages / 304 words |
|||
3 pages / 666 words |
|||
2 pages / 525 words |
|||
3 pages / 844 words |
|||
3 pages / 844 words |
|||
2 pages / 509 words |