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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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SUNDIAL xx SOLAR ASTRONOMY xx TIME Equipment atlas. Building a sundial. Four styles are discussed (horizontal, vertical, polar, armillary). How to use a sundial or armillary sphere to graphically demonstrate a number of principles fundamental to astronomy. Sundials. A look at ancient sundials plus instructions on how to lay out a sundial for your location. Watching earth move with the shadow clock. Learn a lot about the workings of the solar system from a properly-built sundial. Miniature sundial fits in the palm of your hand. How to determine how many hours of daylight are left by measuring the sun's arc with your finger-span. How to build a simple sundial for home or camp. Sundial neckerchief slide. Shadows of time. Make the world's oldest timepiece, the sundial. Sundial reniassance. A truly accurate sundial must be custom-made for the site. Equatorial, polar and horizontal dials are shown. Thyme clocks. How to create a sundial in a thyme pot. Solar watch is a sundial plus compass. Pedestal lawn table with sundial mounted on the top. Vertical sundial hangs on a wall but still uses the sun to tell time. Cast your own concrete sundial. Make your mold from a cakepan. Pocket sundial is built into an aspirin tin. How to make a sundial that works during the summer months. Build a solar cell powered sundial. Servo mechanism rotates to follow the sun and point to the current solar time. Armillary sphere to make for the back yard is made from sheet metal rings and brass lamp parts. Can be used as a sundial. Accurate polar sundial is built from scrap wood and sheet metal. An attractive outdoor cooking grill. Circular firepit is 3-ft. in diameter and surrounded with a brick ring 5 ft. in diameter. An added feature of elegance is a giant sun dial which covers the pit to keep out rain, etc. Sun clock tells time right to the minute by means of an analemma. Equitorial sundial built from plywood and Plexiglas. Adjusts easily to compensate for seasonal errors. Sundial in the shape of an armillary sphere is built entirely of plywood. Winning design in plywood project contest. Sundial indicates standard clock time and is made of cardboard and wood. Portable sundial made of cardboard. Sundial design which tells clock time and daylight saving time. Features an adjustable dial. The time, as indicated by the shadow of the gnomon, can be advanced or retarded by rotating the dial. Design for an unusual, easy-to-read, analemmic sundial. Read in either universal time or local apparent time. Description of a sundial that tells standard time. Includes general information on the necessary formulas to calculate the equation of time for each day of a typical year and transfer this information to a sundial scale. Astronomical computing. Sundials on walls. Computer program, written in BASIC, assists in the design of vertical sundials. Ultraviolet sundial will tell you the amount of UV-B radiation reaching the ground compared with that for the Sun at the zenith. A precision sundial of bronze has a polar axis much like that of a German-equatorial telescope mounting. Shows standard time to the nearest minute with none of the mental corrections that often must be applied to sundial readings. Vikings and polarization sundials. Build a sundial from plastic drain pipe which makes use of sunlight's polarization rather than the orientation of a gnomon shadow. Classic wooden octagonal pedestal (30" high) can be used outdoors for a sundial stand or indoors for displaying art or a plant. How to make a working sundial totally out of wood. Portable sundial tells time from the height of the sun above the horizon and not from its direction. This reproduction of a Middle Ages timepiece is also called a Shepherd's Dial, Pillar Dial, Traveller's Dial or Cylinder Dial. Requires careful wood turning. Rotating equatorial sundial of 7" diameter made of 3/16" aluminum. Two sundials. One made from metal and the other from wood. Make a wooden sundial in one of four styles. (1) Horizontal. (2) Vertical. (3) Polar. (4) Armillary. Sundial with a curved gnomon lets sunlight pass through cutout numbers on the gnomon. The time is thus projected as an actual number on the base of the sundial. | |||||||||
Copyright © by Norman Lathrop Enterprises. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means (electronic, mechanical, print photocopying, recording or otherwise) without the prior expressed permission of Norman Lathrop Enterprises, except as permitted by law. |
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