By Albert G. Ingalls

Backwoods Philosophy-Everest replicate Making Sub-diameter instruments steel Mirrors and apartments Astigmatism-Warner Prisms, residences, Mirrors- creation A Quantitative Optical try out for Telescope Mirrors-King acting the Ronchi try out Quantitatively The Hartmann Test-Calder Flats-Selby Notes the of Optical resting how one can Make Eyepiece Lenses The Refractor-Metal elements and Mounting-Taylor The Refracting Telescope-Principles of Operation and ConstructionHaviland more often than not at the aim Lens goal Scopes-Kirkham For the Rifleman checking out Convex round Surfaces-King Collimation and Adjustment Diagonal circulation Telescope Drives-Lower for better Telescopes Spring Drives for Telescopes The Springfield Mounting-Pattern Making-Porter With of Molding and Casting Molding and Casting Parts-Ferson Molding and Casting a Fork-Mason Springfield Mounting mideligw on Molding and Casting Machining the Springfield Mounting-Porter Motor Drives, Counterweighting, Pier-Springfield Mounting-Porter....

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Extra resources for Amateur Telescope Making Advanced, Book Two (A Sequel to Amateur Telescope Making, Book One)

Example text

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Change the direction of the strolíes 90° anil the firqt streaks will gradually be replacecl by others in the new direction. Now go into the clock stroke and tlie facets will soon take o11 an even hue al1 over. Lemon peel is too irregular pieces shoiild be kept floatinp in a pan of soapy water, ready f o r use. The so;cp will riiake the rouge stick. k a s lwssible yet still permit the points of tlie HCF to be seen tliroupli tlie rnirror. But, for liglit toucliiiig 111)~ ltiter ori, tlie mixture sliould be tliinned down and the pressure relieved t o produce a smootlier action.

D ho quiclhcd ir/' ctnd (Ioz~n,,causirig the sliadow t o more vertically betmeen tlie stre;il

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