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Category contains "Materials Testing"


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Issue: 142, 17/07/30 p. 444
Heading: Sheathing of Ships
Category: Engineering   Materials Testing   Ships   Physics   Chemistry   Philosophy Of Science   Theory And Practice   
Topic: [Copper bottoms for ships are effective at stopping shells and seaweeds attaching themselves but the copper soon wears out. If the copper is in contact with zinc or iron, this does not happen. (Davy made some unsuccessful experiments on "sheathing" ships and another unnamed "scientific man" is working on the same thing now). Even if this research into electric action on metals may not be applied to the cladding of ships, it may be applied to other structures or in building]
Person: DAVY, Sir Humphrey   
Ed`s Mark: PARKE

Issue: 143, 24/07/30 p. 462
Heading: Cement of Algiers, Para 10
Category: Architecture   Archaeology   Building Materials   Engineering   Materials Testing   
Topic: [Cement in Algiers is made of charcoal, lime, sand and a little oil, and baked for three days until it is very hard. The method is believed to have come from the Romans. The composition of Algiers glue is also given]
Ed`s Mark: SMITH

Issue: 144, 31/07/30 p. 475
Heading: Egyptian Temples. [From Personal Observation]
Category: Historical Sciences   Archaeology   Architecture   Building Materials   Engineering   Materials Testing   
Topic: The numerous antique temples that still decorate the Egyptian plains, are mostly built of a compact sandstone...
Ed`s Mark: PARKE

Issue: 144, 31/07/30 p. 477-478
Heading: Effect of Sea-water on Wrought Iron
Category: Engineering   Materials Testing   Chemistry   Ships   
Topic: The partial conversion of cast iron into a substance resembling plumbago...[Now similar changes have been observed in wrought iron]
Ed`s Mark: PARKE

Issue: 144, 31/07/30 p. 478
Heading: Interesting Discovery, Para 7
Category: Botany   Trees   Manufactures   Engineering   Ships   Materials Testing   
Topic: [An association at Lyons have discovered many new industrial uses for Linden bark]

Issue: 147, 21/08/30 p. 526
Heading: Granite Millstones, Para 5
Category: Industry   Engineering   Materials Testing   Agriculture   Water Power   Railways   
Topic: The attempts made at Breslau to convert granite into millstones have been attended with entire success..

Issue: 148, 28/08/30 p. 543
Heading: Opposite Effects of Moisture on Paper and Linen, Para 18
Category: Engineering   Manufactures   Materials Testing   Paper   Textiles   Industry   Art   
Topic: [Paper expands when wet, and linen, from which paper is made, shrinks. The explanation.]
Ed`s Mark: PARKE

Issue: 149, 04/09/30 p. 559
Heading: Mosaic Pavements, Para 13
Category: Geography   Italy   Architecture   Art   Building Materials   Engineering   Materials Testing   
Topic: [The pavements of churches in Sicily are often decorated with marbles cut in hollowed patterns, into which is poured melted "asphaltum". The asphalt occurs naturally, mixed with sand]

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