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D ISC OVERY S ET
WARNING:
SUN HAZARD — Never look directly at the sun
with this device.
WARNING:
CHOKING HAZARD — Small parts.
Not for children under 3 years.
4 0 M M TAB L E TOP T ELE SCO PE
& 900X M I CROS CO PE
IN STRUC TI ON MA N UAL
WARNING:
The lens contains lead that may be harmful.
Wash hands after touching.
WARNING:
FUNCTIONAL SHARP POINT — Not for children
under 3 years.
WARNING:
This product can expose you to chemicals including lead,
which is known to the State of California to cause cancer.
For more information go to www.P65Warnings.ca.gov.
Do not mix alkaline, standard (carbon-zinc), or rechargeable (ni-cad, ni-mh, etc.) batteries.
1 0 +
8 0 -201 04
EN
2
X
NOT INCLUDED
Do not mix old and new batteries.
Non-rechargeable batteries are not to be recharged.
Please recycle batteries responsibly.
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Related Manuals for National Geographic 80-20104
Summary of Contents for National Geographic 80-20104
- Page 1 1 0 + 8 0 -201 04 D ISC OVERY S ET 4 0 M M TAB L E TOP T ELE SCO PE & 900X M I CROS CO PE IN STRUC TI ON MA N UAL WARNING: WARNING: WARNING: SUN HAZARD —...
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Page 2: Important Safety Instructions
READ AND FOLLOW THE INSTRUCTIONS BEFORE USE. IMPORTANT SAFETY INSTRUCTIONS KEEP THESE INSTRUCTIONS FOR LATER USE. • SUN WARNING: WARNING: NEVER ATTEMPT TO OBSERVE THE SUN WITH THIS DEVICE! OBSERVING THE SUN – EVEN FOR A MOMENT – WILL CAUSE INSTANT AND IRREVERSIBLE DAMAGE TO YOUR EYE OR EVEN BLINDNESS. - Page 3 Parts Overview 1. 40 mm Objective Lens 2. Tabletop Tripod 3. Optical Tube Assembly (OTA) with Dew Shield 4. Tripod Head 5. Focus Wheel 6. Diagonal 7. Eyepieces (H6 mm and H20 mm) 8. Compass Available Downloads Visit: www.esmanuals.com...
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Page 4: Troubleshooting Guide
How To Set Up Note: We recommend assembling your telescope for the first time in the daylight or in a lit room so that you can familiarize yourself with assembly steps and all components. • Find a stable surface, like a table. Set the tripod on the table and open it until the tripod spreaders are fully extended. - Page 5 Observing Tips: Star hopping Star hopping is a technique used by amateur astronomers to navigate the night sky. By using easily recognizable constellations and asterisms as a guide, an observer can locate stars and other objects. For example, Polaris, which is commonly referred to as The North Star, can be located quickly using star hopping.
- Page 6 Telescope Terms to Know: Focal Length Objective Lens Eyepiece Eyepiece (mm) Focuser Aperture (mm) Diagonal Focal Point Focal Length Telescope (mm) Aperture: This figure, which is usually expressed in millimeters, is the diameter of a telescope’s light-gathering surface (objective lens in a refractor or primary mirror in a reflector). Aperture is the key factor in determining the brightness and sharpness of the image.
- Page 7 Aperture 102mm Eyepiece Focal Length 20mm Telescope Focal Length 1000mm Magnification: The magnification corresponds to the difference between observation with the naked eye and observation through a magnifying device like a telescope. If a telescope configuration has a magnification of 30x, then an object viewed through the telescope will appear 30 times larger than it would with the naked eye.
- Page 8 Types Of Telescopes: Focuser Light Focuser Primary Mirror Secondary Mirror (Objective) Light Light Focuser Primary Mirror Secondary Mirror (Objective) Light Reflector A reflector telescope uses mirrors to gather and focus light. Light enters the telescope through its open Light front end and travels to the concave primary mirror at the back. From there the light is reflected back up Primary Mirror the tube to a flat secondary mirror, which sits at a 45°...
- Page 10 Customer Service: Call 1-866-252-3811 READ AND FOLLOW THE INSTRUCTIONS BEFORE USE. IMPORTANT SAFETY INSTRUCTIONS KEEP THESE INSTRUCTIONS FOR LATER USE. • THIS MICROSCOPE SET IS INTENDED FOR CHILDREN OLDER THAN AGE 9. CHILDREN SHOULD ONLY USE THIS DEVICE UNDER ADULT SUPERVISION. NEVER LEAVE A CHILD UNSUPERVISED WITH THIS DEVICE. ACCESSORIES IN THE EXPERIMENT KIT MAY HAVE SHARP EDGES AND TIPS.
- Page 11 Parts Overview 1. 20x Eyepiece 9. (3) Prepared Slides and (3) Blank Slides 2. Focus Knob with Slide Case 3. Stage 10. (3) Slide Covers & Labels 4. Stage Clips 11. (3) Collection Vials 5. Objective Turret (5x, 20x, 45x) 12.
- Page 12 How Do I Use My Microscope Before you use your microscope, make sure that the table, desk or surface that you place it on is stable and is not subject to vibration. If the microscope needs to be moved, hold it by the arm and base while carefully transferring it.
- Page 13 Magnification Guide: Eyepiece Objective Power Note: The highest magnification is not 100x always the best for every specimen! 400x 900x Troubleshooting Guide: Problem Solution Turn on light, Readjust focus, No recognizable image Start with the lowest power objective (5x) Center object on slide under No image lowest power objective No light...
- Page 14 History of the Microscope: The optical microscope uses light moved through a lens or lenses to produce magnified views of the smallest of subjects. Over the centuries, these devices have become staples in classrooms, laboratories, jewelry stores and more. However, like other observing aids such as the telescope, the exact origins of the optical microscope are difficult to trace to just one inventor.
- Page 15 Compound Microscope A compound microscope has two sets of magnifying lenses that are used in tandem to view specimens at a range of magnifications. The total magnification power of a particular lens combination is determined by multiplying the magnification of the eyepiece lens and the magnification of the objective lens.
- Page 16 Stereo Microscope A stereo microscope has two objective lenses and two eyepieces and moves light from the specimen along two optical paths, one directed toward the right eye and one to the left. This results in a three-dimensional view. This type of microscope has a low magnification range that is geared toward observing larger solid objects like minerals and insects.
- Page 17 Microscope Terms: Eyepiece: The eyepiece is the lens that an observer looks through. Some microscopes have interchangeable eyepieces for more magnification options. Field of view: The field of view is the diameter of the circle of light seen through the microscope’s eyepiece. Filter: A filter, which is made of colored transparent plastic, can be placed between the illuminator source and the specimen to help observers better recognized components of colorless or transparent objects.
- Page 20 ©2022 National Geographic Partners LLC. All rights reserved. NATIONAL GEOGRAPHIC and Yellow Border Design are trademarks of the National Geographic Society, used under license. ©2022 Explore Scientific, LLC 1010 S. 48th Street, Springdale AR 72762. All rights reserved. Made in China.
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