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A shadow is a dark area where light from a light source is blocked by an opaque object. ... The length of a shadow cast on the ground is proportional to the cotangent of the sun's elevation angl...

planetcalc.com/1875/

This simple online calculator gives a vertical object shadow length for specified day and geographic coordinate. The calculator uses Sun position algorithm to ...

## SunCalc - sunrise, sunset, shadow length, sun position, sun phase ...

www.suncalc.org/

Online application to ascertain the sun movement with interactive map, sunrise, sunset, shadow length, sun position, sun phase, sun height, sun calculator, ...

## Daytime Shadows | National Schools' Observatory

Shadows are created when an object, such as the stick below, blocks out some of the Sun's light. The length of the resulting shadow depends on how low or ...

## Calculate Shadow Length and Direction - Rechneronline

Calculator for the length and direction of a shadow at a given date, time and place.

## Solving Proportions: More Examples - Purplemath

www.purplemath.com/modules/ratio7.htm

A very common class of exercises is finding the height of something very tall by using the daytime shadow length of that same thing, its shadow being down ...

## Why do shadows change length during the day? | Reference.com

Shadows change length throughout the day because the angle at which the sun shines on stationary objects changes with the Earth's rotation. For example ...

... and plots the shadows cast by the sun throughout the day at different times of ... length, height) - eg make 100 units = 10 m in your real world scene, then 5 m ...

## The Sun > Altitude/Shadow Length/Solar Energy - CalSky

www.calsky.com/?sunarc=

The graphical day calendar will show you the height of the Sun during the daylight hours or - if desired - a selectable period of time. For the analysis of the ...