Reader TTS

ABSTRACT WHEN two heated spheres, one black and one bright, but otherwise identical, are kept at the same temperature, they lose an equal amount of heat by conduction and convection1. Any

difference in heat input is due to the difference in radiational exchange. Neither air temperature nor air velocity enters the calculations for determining the mean radiant temperature of

the surroundings. The quantities needed are: the heat input of the two spheres; the temperatures of the two spheres (which should be equal); the surface area; the emissivities of the bright

and the black sphere. Nickel1 or gold2 is used for plating the bright sphere. Access through your institution Buy or subscribe This is a preview of subscription content, access via your

institution ACCESS OPTIONS Access through your institution Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue Learn more Buy this

article * Purchase on SpringerLink * Instant access to full article PDF Buy now Prices may be subject to local taxes which are calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in

* Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS COMPARATIVE STUDY ON MEASUREMENTS OF RADIOCHROMIC FILMS USING

PORTABLE COLORIMETERS Article Open access 09 February 2024 MONOCHROMATIC LIGHT MEASUREMENT VIA GEOMETRIC PHASE AND FOURIER-TRANSFORM SPECTROSCOPY METHOD Article Open access 28 July 2022

MEASURING MEAN RADIANT TEMPERATURE FOR INDOOR COMFORT ASSESSMENT USING LOW-RESOLUTION OPTICAL SENSORS Article Open access 31 January 2025 REFERENCES * Roose, H., _Schweiz. Bl. Heizung und

Lueftung_, 1 (1938). * Sutton, D. J., and McNall, jun., P. E., _Research Report GR_ 2462-_R_2 (Minneapolis–Honeywell Regulator Co., Sept. 1953). * Bedford, T., and Warner, C. G., _J. Hyg._

(Camb.), 34, 460 (1934). Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Microbiology and Public Health, Chicago Medical School, Chicago,

Illinois WALTER KOCH Authors * WALTER KOCH View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS

ARTICLE CITE THIS ARTICLE KOCH, W. A Method of Calibrating Two-Sphere Non-directional Radiometers. _Nature_ 192, 960 (1961). https://doi.org/10.1038/192960a0 Download citation * Issue Date:

09 December 1961 * DOI: https://doi.org/10.1038/192960a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable

link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative