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Newspaper
Winchester Evening Star
Location
Winchester, Virginia, United States of America
Date
Feb 07, 1950
Page
6
A bulletin lists a radiation counter with foot platform and hand cavities plus a peephole door tube, a blind stitch attachment for sewing machines, three power binoculars worn like glasses, a moisture proof plant bag, an automatic defrosting system for refrigerators, a wheeled guard for aircraft jet intakes, and a new lawn mower with rotating blades and triangular teeth. Readers may request Gadget Bulletin 503 from Science Service in Washington, D. C.
A Science Service piece explains symmetry as balance in size shape or position about a center. It notes mathematical uses for dividing figures by lines planes or points and describes symmetry in animal bodies with a central axis, citing jellyfishes as radial examples.
A 1950 Science Service forward look notes mass produced printing evolving toward electronic methods and microfilm. It urges studying all printing and duplication options, assessing global pulp resources, and exploring synthetic papers to handle growing recorded knowledge and access needs.
Practical old time DIY guide shows how to transport long stock with a car using ropes boards blankets and improvised trailers. Methods include undercarriage supports cross rack two by fours lumber and makeshift axles plus kneeling caution on bumps and sway. Copyright 1950 Science Service.
The piece explains bats as a separate mammal order with wings formed by expanded skin between finger bones. It notes their warm blood, internal development, and maternal care, while addressing fear and misconceptions about bats and their largely insectivorous, beneficial role.
Bats rely on a radar like sound mechanism to avoid collisions and navigate aerial maneuvers. They are highly sensitive to sound and use echoes from their own calls. If a human appears, bats retreat and avoid contact with sharp flying reflexes.
Flies that survive DDT are not physically changed but carry innate tolerance. Poison resistance arises from inherited tolerance in descendants, suggesting immunity may persist across generations. The observation explains why some fly populations endure standard insecticide doses.
Medical writer Jane Stafford explains the heart as a powerful, efficient pump. The article details heart size, chambers, circulation, impulse control, systole and diastole, coronary arteries, and possible diseases that affect its pumping efficiency.
University of California psychologists Brown and Ghiselli tested workers from 20 to over 50 and found only small speed loss in simple tasks. When speed intertwined with choice or reaction, older workers lagged behind younger ones. They caution against blanket judgments, noting age matters with task complexity and familiarity.
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