Why Fireflies Glow Without Heat A Simple Guide
A reader explores luminescence in fireflies, describing luciferin and luciferase roles, heatless light production, and why fireflies glow. It notes the small light output, possible purposes for signaling and night feeding, and includes a geographic detail about a South American beetle with red-end lights.
Firefly Chemistry Sparks Quest For Two Substances
The note claims chemists cannot produce two substances that fireflies emit naturally. It stresses the mystery of natural light compounds and hints at ongoing efforts to replicate this bioluminescent process in the lab.
Arithmetic cartoon prompts and classroom dialogue
A short dialogue features a teacher explaining a conductor of electricity and a student joke about apples. Big Brother offers to help with homework and asks a question about five apples with one taken, while Little Sister notes her class uses oranges for arithmetic.
MENTIONED IN THIS ARTICLE
Big Brother
Little Sister
Drawing contest entry wins Britannica prize
A local drawing contest announces prizes of a Britannica World Atlas and Yearbook of Events. The winner is Rita Exler, age 9, of Edmonton Alberta, with entries requested to include name age and address.
MENTIONED IN THIS ARTICLE
Britannica Senior ‘Encyclopaedia ’ School
Paul Hoffman
Glen Rock
Rita Exler
Edmonton
Allberta
Protestant population in Japan doubles from 1945 to 1965
Protestant Christians in Japan grew from about 200000 in 1945 to 460000 by 1965, marking more than a doubling in two decades amid postwar religious shifts.
MENTIONED IN THIS ARTICLE
Japan
Women Break Wall on Wall Street As Jobs Open
Sylvia Porter reports Merrill Lynch now has 41 women brokers, the American Stock Exchange welcomes its first two women members, and NYSE still has few female full members. Women control about 51 percent of new shareholders and own stock valued at roughly 120 billion dollars, while a broker shortage grows as the investment industry expands.
MENTIONED IN THIS ARTICLE
Sylvia Porter
Merrill Lynch
Pierce, Fenner & Smith
American Stock Exchange
Wall Street
New York Stock Exchange
NYSE
New York Institute of Finance
U.S
C-Plus Major Medical Benefits At Four Ninety Five Monthly
Major Medical benefits priced at 4.75 per month cover services Medicare excludes with a 10000 lifetime limit. Includes hospital care days 1 40 hospital inpatient costs 61st to 90th days coverage and full Medicare deductibles for hospital outpatient care. Offers full coverage for hospital outpatient emergency care and minor surgery therapy. Eligible individuals may apply for Blue Cross Blue Shield through Alabama's leading health protection organization.
MENTIONED IN THIS ARTICLE
Medicare
Blue Cross
Blue Shield
Alabama
Organization For Health Protection
Wall Street Faces Talent Gaps as Volume Grows
A 1975 Exchange Community report projects NYSE shares rising to 30 million in under a decade while daily trading volume nears 1 billion. Firms may need to nearly double sales staff and recruit women and older workers to handle surging business and a tight labor pool.
MENTIONED IN THIS ARTICLE
New York Stock Exchange
Exchange
Wall Street
Pennsylvanians Projected Population Range by 1985
The Hall Syndicate reports want ads promise results. A projection estimates Pennsylvania’s population in 1985 between 12.8 and 14.0 million persons, reflecting estimates amid varied totals.
MENTIONED IN THIS ARTICLE
Pennsylvania
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