Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-09T07:51:43.162Z Has data issue: false hasContentIssue false

2. Description of a Sliding Scale for Facilitating the Use of the Moist-bulb Hygrometer

Published online by Cambridge University Press:  16 March 2015

Get access

Extract

The instrument described in the paper is made of German silver, and is about a foot in length, and of an inch in breadth; along the middle of it there is a groove for a slider. On the right edge of the groove is engraved a scale of inches, and on the left the degrees of temperature from 0° to 85° Fahrenheit, each being placed exactly opposite that point of the scale of inches which measures the corresponding tension of vapour. On the left edge of the slider is engraved a scale of equal parts, each of an inch; on the right edge, and having the same zero, is a vernier, applicable to the scale of inches. The lines on these scales are ten times larger than those which the symbols in the dew-point formula represent, but their numerical designations are not changed.

Type
Proceedings 1844-45
Copyright
Copyright © Royal Society of Edinburgh 1850

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)