The Bridgeport evening farmer., 1909-06-03
NEWEST NOTES OF SCIENCE

NEWEST NOTES OF SCIENCE Sandpaper will remove old paint more rapidly if kept wet with ben zine.
 F Chile supports 15 industrial schools giving instruction to about $500 pupils The first cannon to be cast in one piece was made by an English iron- master in 1543. All the machinery in the Indian Government mint at Calcutta is cleo The coal bill of the navy last year including handling and storage. was $5. 544, ,945.
 teries, have been installed in a New London ambulance. German East Africa has been rais- ing sisal hemp since 1893 from plants imported from Florida. Austria-Hungary has prohibited the importation of bran adulterated with mineral substances. Drinking tumblers of ice, which may be frozen in simple moulds in any household, are a novelty. The total number of prizes now be- ing contested for by aviators number 3S, valued at over $300,O00. Siberia exported nearly 58.000 tons of butter last year, chiefly to Denmark, Germany and England. Leaf and twig diseases, difficult to combat, are gradually lessening h. dia's annual production of coffee. Illinois, Kentucky. Colorado and Ar duce flourspar in commercial quanti- ties.
 Canvas may be waterproofed by coxering., it with finely shaved bees wax and then melting it in with a
 The volcano of Stromboli has been known to emit flames persistently and lava and cinders spasmodically for over 2.000 years.
 investigation of the nutritive values of the various varieties of potatoes shows that the violet tinted tubers stand highest.
 A speed of 46 miles an hour is claim ed for a Detroit motor boat to which aerial propeller.
 Ecuador exports about 10000 tons of vegetable ivory annually. of which Germany takes about one-half and the United States one-fourth.
 The Department of Agriculture ex- poets this years sugar beet crop to to- tai more than million tons. the greatest on record.
 An electric fan has been devised to remove the feathers from chickens. Its blast is said to clean one complete ly in a few seconds.
 Brazilian scientists have succeeded in developing a new variety of coffee, with unusually large, fine berries, which ripen very early.
 To aid in the study of high voltages a short experimental transmission line has been built in Sweden adapted to operate at 500,000 volts.
 A Pennsylvanian has patented a stand that may be clamped to table to prevent housewife's aatirons from falling on her feet while ironing.
 The United States holds the record for the highest telephone line in the world with the one at Camp Bird, Col. Il, 900 feet above sea level.
 Known as the kleptograph, bur- glar alarm invented by an Italian ig- mites f1ashlight and photographs an intruder who invades the room in which it is set.
 In a novel bridge nearing completion at Philadelphia a concrete flooring 262 which are steel boxes filled with con- crete.
 An emergency rope tire that can be packed in small compass has been in vented to replace a damaged rubber one for an automobile that has met with a mishap.
 New vanadium steel handsaws, which will cut iron pipe, are capable of being rolled into spirals, regaining their orig ina1 form without injury when releas- ed.
 A platinum famine is feared, as the output of Russias mines, from which 95 per cent. of the worlds supply is derived, has been decreasing steadily since 1901.
 Tests show that wind movement of Is miles an hour against the side of a building will force 1855 cubic feet of air through one-sixteenth inch crevice in an hour.
 Tungsten lamps are the first form of artificial light by which it has been found possible to sort cigars by col ors. Heretofore the work has had to be done in daylight.
 The largest movable bridge yet built in Asia is double-1eaf roller lift af- fair, with an opening 200 feet wide, erected by a Chicago company for railroad in Burma.
 A new gun carriage with which the pedrail wheels, the tire blocks of which practically make and take up a road for it as it advances.
 To celebrate the first centenary of Argentine independence an interna- tiona1 railway and transportation ex- position will be held at Buenos Ayres from May to November next year.
 In fuel tests by the Geological Sur vey all but three of 37 specimens of coal from the Rocky Mountain region produced good coke, although several had been considered non-cooking.
 A feature of a new shower bath ap- paratus is a pipe coil to be placed over a gas, alcohol or oil burner, by which it is claimed the water may be main tained at an even temperature. cording tql German scientist, would be ideal f$r balloons, being neutral and non-i1f1ammable and having al- most equal lifting power with hydro gen.