to a flywheel in a room, for its diameter would measure six meters. large European electric station, the superintendent de- In the ScIENTIFIC AMERICAN of November 11, 1905, signed and had constructed a flywheel of wood more some account was given of inorganic colloidal solu- than 35 feet in… … ways are to be brought up to date, for which purpose small transformer that any one at all familiar with ‘an expenditure of $83,643,750 has been sanctioned this tools can easily build. The total cost of materials will year. Of this total, $62,687,500 is to be devoted to the not exceed $3.50, while…
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