Depth of the Ocean Measured by Echo Sounder
An explainer on how ocean depths are measured using sounding methods and echo sounding technology. It describes early rope and line methods, then modern echo sounders that emit high frequency signals, record echoes, and produce continuous profiles of the seabed showing mountains and flat areas.
MENTIONED IN THIS ARTICLE
Barry la Rue
Ronceverte
West Va
3M Expansion Finished at Decatur Plant
11 000 square foot addition at the Decatur 3M Company plant is complete as manager Phil Raths says. He notes further steps to boost general chemical and fluorochemical production at Decatur and mentions plans for a multi million dollar general purpose chemical plant near Cordoba Illinois as part of the division's expansion. The chemical division operates plants in Newark New Jersey Copley Ohio and Cottage Grove Minnesota.
MENTIONED IN THIS ARTICLE
Decatur 3M Company
Phil Raths
Decatur
Raths
Cordoba
Ill
Decatur 3M
Film and Allied Products
W H. Fuhr and Chemical Division
Chemical Division
Newark
N.J
Copley Ohio
Cottage Grove
Minn
The Chuckle Box Barber Exchange Joke
A barber asks a boy how he wants his hair cut. The boy replies like his dad with a hole on top. A passerby asks the officer for hospital directions, and the officer simply says to stay where you are.
MENTIONED IN THIS ARTICLE
Dad
Riddles and Jokes Revealed in Tomorrow’s Paper
Puzzle box features three school subjects hidden by anagrams. Readers are invited to solve the clues and send riddles to the column. The note lists a prize winner: John Camara of Fremont, California.
MENTIONED IN THIS ARTICLE
Book of Knowledge
John Camara
Fremont
Calif
Guiding Philosophy Drafted by Lockport Educators
The Lockport Teachers Organization human relations committee is drafting a guiding philosophy for community relations, aligning with a District 205 plan from last fall. The 11 points emphasize employment on merit, recognizing prejudices, equal facilities for all students, cultural understanding, and leadership to prevent segregation in line with Illinois law promoting equal opportunity in schools.
MENTIONED IN THIS ARTICLE
Lockport, Ill
Lockport
School Board of High School
Illinois
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