Old Arts Form Basis For Air Conditioning
Air conditioning is not new but a blend of ancient practices refined over time. Early humidification and circulation traced from caveman fires and Roman hypocausts to 19th century steam and hot water systems, with refrigeration origins in Egypt and China and railcar air conditioning experiments in 1857.
MENTIONED IN THIS ARTICLE
Rome
England
Henry III
Martin Trienwald
Sweden
House of Commons
London
Bohemia
Alexander
Nero
United States
Michael Farad
Erie Railroad
Sears
Hercules
Dental Health Letter on Pyorrhea Nutrition and Care
The author argues pyorrhea reflects nutritional deficiency and advocates unrefined foods and raw foods as prevention. He notes conflicting authority on causes and treatment, warns brushing alone cannot prevent fissures, and offers to mail monographs “Wheat to Eat” and “Conservation of the Teeth” to readers with stamped envelopes.
Exhibits Of Edisonia Shown At New York Museum
A series of Edison related exhibits from private Edisonia collections joins the Edison Industries Exhibition at New York Museum of Science and Industry in Rockefeller Center. Among standout items is part of the W. J. Hammer collection of Edison relics and memorabilia from his days as a close associate of Edison.
MENTIONED IN THIS ARTICLE
New York
Edison Industries
New York Museum
Also Mentioned on This Page
Alabama
A. L. Williams
Anniston
Ala
Personal Health Service
William Brady, M. D
William Brady
National Newspaper Service
West Madison Street
Chicaso
Riggs
Fauchard
Cities Service
Cities Service Oil CO
Second Street
DIAL
Beeeeeeee
3Rd St
Holland Furnace
C.eggert
Holland
F Ave. N. E
Cedar Rapids
Iowa
Holland Furnace Company
Aven
Tee
Ansyteetesul DS
N. H. A. Plan
Sears, Roebuck and Co
Cedar Rapids’ Heating Headquarters
Tyrone