Lab Techniques


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A Broken Glass Tool, Spectroscopes, a Grinding Machine

IT'S JUST A COMMONPLACE that the fellow who can always have whatever he wants by writing a check for..

140.00 Ex Tax: 140.00

A Mirror Grinding Machine, a Spark Plug Telescope Mount

THE SIXTH Annual Convention of amateur telescope enthusiasts will be held at Stellafane, near Spring..

140.00 Ex Tax: 140.00

Abrasives, with Focus on Diamond Abrasives

UNCOMMON OPTICAL GRINDING and polishing materials such as boron carbide, sapphire dust, titanium oxi..

140.00 Ex Tax: 140.00

Accuracy of the Knife-Edge Test

The first concerns a telescope made by a Benedictine nun, Sister Cornelia of Mount Saint Mary's Conv..

140.00 Ex Tax: 140.00

Aluminizing Equipment, Strain-Testing Glass, Pitch Lap Manufacture

ALUMINIZING one's own telescope mirrors is probably uneconomical, considering the time, materials an..

140.00 Ex Tax: 140.00

Aluminizing Mirrors, Some Knife-Edge Test Devices

LAST MONTH in this department Professor Henry L. Yeagley, of the Department of Physics at the Pennsy..

140.00 Ex Tax: 140.00

Amateur Telescopes, Mirror Grinding Tips, Schupmann Telescopes

BICYCLES having now become once more fashionable, the city or town owner of a richest-field telescop..

140.00 Ex Tax: 140.00

An Ambitious Observatory Is Built By Father and Son

A FEW WEEKS ago one of the largest and most carefully made amateur astronomical observatories went i..

140.00 Ex Tax: 140.00

An Evaporation Chamber, Designing Barlow Lenses, Metal Mirrors, Sources of Rouge

HERE IS interesting news. Aluminizing brought one step nearer reach of the average amateur and at le..

140.00 Ex Tax: 140.00

Another Automatic Mirror Grinder

AMATEUR telescope makers and astronomers within a radius of one light-year of Stellafane, near Sprin..

140.00 Ex Tax: 140.00

Another Grinding - Polishing Machine

IN THIS DEPARTMENT in the October and November numbers Patrick A. Driscoll described the design and ..

140.00 Ex Tax: 140.00

Another Method of Making Mirrors

WHICH OPTICAL SHOP methods are best-professional or amateur?Neither. In each the needs are different..

140.00 Ex Tax: 140.00

Centrifugal vanes makes high pressure, great outflow.High quality engine ensures safe and steady eff..
50,260.25
Ex Tax: 50,260.25
Special artificial rubber to keep a steady air output and pressure.Advanced air-compressing system, ..
12,439.02
Ex Tax: 12,439.02
Centrifugal vanes makes high pressure, great outflow.High quality engine ensures safe and steady eff..
17,469.28
Ex Tax: 17,469.28
HG series-1 whirl charging aeratorFEATURESCentrifugal vanes make high pressure,great outflow noise.H..
9,768.66
Ex Tax: 9,768.66
FEATURES    Our unique "Micro Coating" eliminates nutrition loss and water clouding.&..
272.95
Ex Tax: 272.95
Eggs Quantity: 250,000+MMH Brine Shrimp Eggs/Artemia Cysts (Ready to Use) is a easy to use formula..
57.46
Ex Tax: 57.46
concainer bag for coarse filter materialEnables an easier removal of the filter material from the fi..
320.54
Ex Tax: 320.54
Natural substrate which filters and enhances plant growth.Supports the filter with its large coloniz..
713.06
Ex Tax: 713.06
The best plant base to create a total natural fertilized planted environment throughout. a breakthro..
427.83
Ex Tax: 427.83
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