Antique Nautical Telescope for Portable Pirate Spyglass, Brass Adjustable Optics Vintage Telescope for Travel Navigation Sailing Voyage by DOLLAND London

By Brand : Dollond London

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4569

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3198

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Product Features :

MATERIAL :- Brass
SIZE :- Open Size Is 15 Cm, Close Size, 7Cm, Dia 3 Cm
NAUTICAL TELESCOPE :- Early Telescopes Were Primarily Used For Making Earth-Bound Observations, Such As Surveying And Military Tactics. The Initial Telescope He Created (And The Dutch Ones It Was Based On) Magnified Objects Three Diameters. That Is, It Made Things Look Three Times Larger Than They Did With The Naked Eye.
USE :- Telescopes Have Also Helped Us Understand Gravity And Other Fundamental Laws Of The Physical World. Some New Telescopes Allow Us To Study Objects In The Universe By Detecting The Heat Or Radio Waves Or X-Rays They Emit. Telescopes Are Now Discovering Planets Around Other Stars.
SPY GLASS :- Fully Functional Spy Glass Focuses And Magnifies. Simply Adjust The Telescope Tube Length To Bring Image Into Clear Focus. This Telescope Uses a Push-And-Pull Mechanism To Focus on Distant Objects. You Need To Pull It Out Completely And Slowly Push The Barrel Inside, While Looking Through The Telescope, Till The Desired Object Becomes Clear.

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