Metrology at the nano scale
| Autor: | Peter J. Cumpson, Ben Sheridan, Marc J. A. Bailey |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Physics World. 18:37-40 |
| ISSN: | 2058-7058 0953-8585 |
| DOI: | 10.1088/2058-7058/18/8/35 |
| Popis: | Industry has long depended on accurate measurement. In the 19th century, for example, the performance of steam engines was seriously limited by inaccurately made components, a situation that was transformed by Henry Maudsley's screw micrometer calliper. And early in the 20th century, the development of telegraphy relied on improved standards of electrical resistance. Before this, each country had its own standards and cross-border communication was difficult. |
| Databáze: | OpenAIRE |
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