New Machines And Gadgets Bulletin Highlights Innovations
AConvertible coal or oil furnace with two combustion chambers switches fuel at a flip of a switch and uses an automatic damper. An automatic brake lock keeps a car on hills without the brake. Plastic jars and vials resist moisture and acids. An electric loudspeaker fits drive ins with a glass fiber sound pad. A lightweight viewer for 2.25 inch transparencies uses a single bulb. A miniature greenhouse measures eight by six feet with a plastic reinforced frame. A compact lavatory unit for railcars saves space with a flush system. Send a three cent stamp to Science Service for Gadget Bulletin 423.
MENTIONED IN THIS ARTICLE
Science Service
N. W
Washington, D. C
Schmidt telescopes map Milky Way with Baker Schmidt designs
Wide field Schmidt cameras reveal vast sky areas at once aiding Milky Way studies and V-2 tracking. Harvard Baker Schmidt advance aims to shrink size and add a second mirror, enabling sharp images on flat film. Centers include Palomar, Harvard South Africa, and Armagh Dunsink. The Milky Way’s core lies in Sagittarius. observations span US Mexico and South Africa.
MENTIONED IN THIS ARTICLE
Earth
Harlow Shapley
Harvard Observatory
Jaxy
Baker
Harvard
Armagh
Northern Ireland
Dunsink Q
Eire
United States
Mexico
South Africa
Boyden
Bloemfontein
Science Service
Palomar Mountain
Robert E. Cox
J. J. Nassau
Warner and Swasey Observatory
Case Institute of Technology
Schmidt
Baker- Schmidt
Calif
California Institute of Technology
Carnegie Institution of Washington
Upsala
Sweden
University Observatory
Armagh Observatory
Dunsink Observatory
Tonanzintla
Mexican National Observatory
Bankers balk at loans over wild morning glory infestation
In farming districts banks refuse to lend on farms heavy with wild morning glory or bindweed. The weed chokes crops with deep underground storage roots, resisting pulling or plowing, but 24-D shows promise though requiring higher concentrations and more sprayings, raising costs.
Telescopes and lamps shaped by Schmidt designs
The article traces the Schmidt telescope's evolution from an astronomy tool to a lighting system. It notes a 1910 Kellner patent for "A Projecting Lamp" assigned to Bausch and Lomb, describing a reverse Schmidt concept later adapted to sky photography in Germany.
MENTIONED IN THIS ARTICLE
Gustav A. Hermann Kellner
Bausch and Lomb Optical Company
Germany
World's Most Powerful Telescopes Listed by Science Service
The Science Service catalogues the globe’s giant telescopes, detailing location, completion dates, and operators. It highlights major reflectors from 200-inch Palomar to 32.7-inch Meudon and 60-inch Schmidt projects, naming institutions like Caltech Carnegie, Lick, Yerkes, and Harvard among others.
MENTIONED IN THIS ARTICLE
Palownar Mountain
Calif
California Institute of Technology
Carnegie Institution of Washington
Mt. Hamilton
Lick Observatory
The
University of California
Mt. Wilson
Mount Wilson
Wis
Yerkes Observatory
Chicago
Texas
Meudon
France
Potsdam
Germany
Astrophysical Observatory
Pittsburgh
Allegheny Observatory
University of Pittsburgh
Nice
Pischofisheim Observatory
University of Paris
Bloemfontein
South Africa
Harvard College Observatory
Navaho cradle boards and baby shoes treasured by mother
The text notes cradle boards made from thongs laced with boards, used for Navajo babies. A Navajo infant is placed in the cradle board after about a month, and the cradle is carefully made by the father. The passage also mentions first baby shoes worn by white children.
Dust Explosions Demonstrated by Junior Scientists
The article outlines a dust explosion demonstration using a press-on lid oil can and a small metal box to show how finely divided dusts like sycocpo dium powder corny starch coal or metal dust can ignite when dispersed in air. It warns to perform trials outdoors and avoid closed spaces to prevent damage or injury.
MENTIONED IN THIS ARTICLE
Washington, D. C
Science Service
Tzintzuntzan Once Empire Capital
The Tarascan Empire capital Tzintzuntzan, once home to about 40,000 people, is now a small Mexican farming town with around 1,000 residents of mixed Spanish and Indian heritage after Spanish conquest.
MENTIONED IN THIS ARTICLE
Tzintzuntzan
Mexico
Also Mentioned on This Page
Martha G. Morrow
Astronomy
Bernhard Schmidt
James G. Baker
Harvard University
Milky Way
Family
Explorer
Atoly
National Observationsazintla
Oak Ridge
Cleveland
T.e
Hamburg Observatory
Bergedorf
Aade
Dr. Baker
By Science Service
Tory
Mt. Locke
Tex
Donald ‘Observatory
Universities of Texas
Pretoria
Radcliffe Observatory
Richmond Hill
Ontario
David Dunlap
University of Toronto
Victoria
British Columbia
Dominion Astrophysical Observatory
Delaware, O
Perkins Observatory
Ohio Wesleyan University
Williams Bay
Mass
By Joseph H. Kraus
Science Clubs of America
J. C. Shaw
University of Maryland
Shaw
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