this "SUNCLOCK", or HUMAN SUNDIAL - which uses a PERSON'S OWN SHADOW, to show the correct clock time ! 'Human Sundials' possess several advantages, when compared with pedestal-mounted dials - and they are often used in school grounds, private gardens, parks or any similar public areas, etc,

2015年6月4日 · Creating a “Human Sundial” You have probably noticed that on sunny days the length of your shadow changes. It might start off in the morning long, get shortest some time around lunchtime, and appear longest right before the sun goes down.

Human Sundial: Instructions for Building a Sundial with the Online Calculator [DRAFT 4MB pdf. posted Feb. 20, 2018] Additional tips for Drawing the Elipse. [DRAFT posted april 9, 2018]

SunClocks are Interactive Human Sundials which are tailor-made for your specific location. Human Sundials have many advantages over regular pedestal mounted sundials. They are most popular with schools as fun and educational DIY projects …

This human sundial is a fun outdoor STEM activity will help kids understand how shadows are made and encourage them to experiment with light and shadow.

2024年7月20日 · A human sundial, also known as an analemmatic sundial, uses a person as a vertical shadow-casting object to tell time by noting where the shadow crosses hour lines on an elliptical dial. In other words, the upright standing person is the gnomon or pointer at the center of the circle that casts a shadow that falls onto the flat surface of the ...

The Solar Schoolhouse has an online human sundial calculator that generates plans for making your own human sundial. All you need to generate plans is your zip code or your location’s latitude and longitude measurements.

Customized SUNDIAL DESIGNS are supplied (specifically for your exact Latitude and Longitude) - telling you how to install an accurate Human Sundial layout, on any 'level ground' area. Schools simply paint them on to their playgrounds, giving an outdoor 'art' project - plus a useful and 'vandal-proof' feature,

Have students investigate how to read a sundial in different hemispheres or at the equator. Will the gnomon point north in the southern hemisphere? Would it be different at the equator?

2012年4月22日 · A human sundial or analemmatic sundial differs from a common sundial in that the gnomon, which casts the shadow, is not angled. The gnomon (a person) in a human sundial is vertical and stands on a marker on the ground that states the month.