Image from page 159 of "Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery" (1901)


Related Images

image Image-587 image ❀✽ Image'in ❀✽ II image image Image-428 Image-375 image ♪♪♪... Image in✽❀✽ image IMaGe_3615 Image-1462 image Image-1181 ~What's inside~ image Image-33-15 image Image-933


License: No Copyright
Author: Internet Archive Book Images
Description:
Identifier: inductioncoilsho00schn Title: Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery Year: 1901 (1900s) Authors: Schneider, Norman H. (Norman Hugh) Subjects: Induction coils Radiography X-rays Radiography Publisher: New York : Spon & Chamberlain London : E. & F.N. Spon Contributing Library: Francis A. Countway Library of Medicine Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: ondary insulation in per-forming this experiment. CHAPTER VI. SPECTRUM ANALYSIS. If a metal or the salt of a metal beburned in a flame it imparts to the flame adistinctive color ; table salt thrown intothe fire burns with a yellowish flame, de-noting the presence of sodium, and agreenish tint, indicating the combustionof chlorine. Violet flames accompany theburning of the salts of potassium, andbarium burns green. Lithium and stron-tium give a red hue. But to be ordinarilyperceptible, the salts require for the mostpart to be present in considerable quanti-ties. By the use of the spectroscope,however, extremely small proportions ofthese metals and salts can be readily de-tected and classified. If a beam of light be transmitted 132 Spectrtun A nalysis. through a prism ot glass the rays are de-composed, and what is known as a spec-trum is formed (Fig. 40). The most gen-erally observed spectrum is the rainbow.When the light from a flame in which isburning some suitable substance be trans- Text Appearing After Image: FiG. 40. mitted through the prism, the color whichpredominates, in the flame will predomi-nate in its spectrum. The combination ofa prism and tubes for observing theseeffects is a spectroscope (Fig. 41). Theshort fat spark from the Rhumkorff coil ismost useful in this work. The electrodes spectrum A dialysis. 33 are provided with a portion of the sub-stance to be examined, and the spark is Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Credit:

Select Image Size
Square 75X75 View Download
Large Square 150X150 View Download
Thumbnail 100X54 View Download
Small 240X130 View Download
Small 320 320X173 View Download
Medium 500X271 View Download
Medium 640 640X347 View Download
Medium 800 800X434 View Download
Large 1024X555 View Download
Original 1424X772 View Download