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You can make your own solar eclipse viewer box at home, whether with a pinhole projector or a colander. No problem. How to make a handmade solar eclipse view box if you can't find glasses
The good folks at NASA have an easy way you can view the eclipse by making a box pinhole projector with ... Except for a brief moment during the totality when the moon completely blocks out the ...
Turn a shoebox into a partial solar eclipse viewer. The cereal box method works with shoeboxes, too.. Cut a small hole on one end of the shoebox and tape foil over it. Poke a small hole in the foil.
Cut out the rectangular piece of paper and put it in the cereal box to line the bottom. Cut off the sides of the box top, a third on the left side, a third on the right, leaving the middle third ...
The apparent motion of the Sun along the ecliptic (red) as seen on the inside of the celestial sphere.Ecliptic coordinates appear in (red). The celestial equator (blue) and the equatorial coordinates (blue), being inclined to the ecliptic, appear to wobble as the Sun advances.
PlantUML is an open-source tool allowing users to create diagrams from a plain text language. Besides various UML diagrams, PlantUML has support for various other software development related formats (such as Archimate, Block diagram, BPMN, C4, Computer network diagram, ERD, Gantt chart, Mind map, and WBD), as well as visualisation of JSON and YAML files.
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A diagram with multiple synchronous machine curves; open-circuit saturation curve is the leftmost one The open-circuit saturation curve (also open-circuit characteristic, OCC) of a synchronous generator is a plot of the output open circuit voltage as a function of the excitation current or field.