Ad
related to: function of binoculars in the world history worksheet 9th grade class- Projects
Get instructions for fun, hands-on
activities that apply PK-12 topics.
- Packets
Perfect for independent work!
Browse our fun activity packs.
- Worksheets
All the printables you need for
math, ELA, science, and much more.
- Assessment
Creative ways to see what students
know & help them with new concepts.
- Projects
Search results
Results from the WOW.Com Content Network
The small exit pupil of a 25×30 telescope and large exit pupils of 9×63 binoculars, the latter suitable for use in low light. Binoculars concentrate the light gathered by the objective into a beam, of which the diameter, the exit pupil, is the objective diameter divided by the magnifying
In World War II and earlier submarines it was the only means of gathering target data to accurately fire a torpedo, since sonar was not yet sufficiently advanced for this purpose (ranging with sonar required emission of an acoustic "ping" that gave away the location of the submarine) and most torpedoes were unguided.
The binocular device is a generally compact instrument for both eyes designed for mobile use. A camera could be considered a type of optical instrument, with the pinhole camera and camera obscura being very simple examples of such devices.
This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.
History of Optics (audio mp3) by Simon Schaffer, Professor in History and Philosophy of Science at the University of Cambridge, Jim Bennett, Director of the Museum of the History of Science at the University of Oxford and Emily Winterburn, Curator of Astronomy at the National Maritime Museum (recorded by the BBC
The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light. An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.
For premium support please call: 800-290-4726 more ways to reach us
The First World War was the first major conflict where more gun laying was made by optical equipment such as binoculars and rangefinders than by unaided eye. These tools were essential for the accurate fire control of artillery pieces which were now shooting at ranges of up to 40,000–60,000 yards (37–55 km). [ 1 ]
Ad
related to: function of binoculars in the world history worksheet 9th grade class