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The sundial and the compass are two completely different instruments, built for different purposes.
The sundial is an instrument designed for a specific location on earth and permanently installed there, on which the shadow of one of its parts indicates the hour of the day (while the sun is up and making shadows).
The compass is an instrument used for navigation. It includes a free-floating magnetized component which, when held level and still, aligns itself with the earth's magnetic field and in doing so, points approximately north.
A sundial compass is a portable sundial attached over a compass via a hinge. There are some adjustable legs that need to be used to level the instrument if not on level ground. The gnome is hinged and needs to be put in the up postition where it locks into place. There should be what looks like a protractor that is to the right of the gnome that is on a hinge. That to needs to be flipped up as well. The protractor is used to set the sundial to the correct latitude angle. The compass is to find true north based off of the area's magnetic north declination. Once the instrument has been leveled, set to the correct latitude, and to true north just observe the shadow that is cast on to the sundial's face by the gnome. For those in the Southern Hemisphere, everything is the same except you will want to find true south instead. When the instrument is not in use be sure to set the compass needle brake to ensure the needle bearing in not damaged. Just slide a lever on the side of the compass and the needle should lock in place. Fold everything else down and store. One more thing I better mention, is that the time the sundial will show is what is called local apparent time and not the time as shown on your watch unless you happen to be at the center of your time zone. The sundial will be ahead if you are on the east side of the time zone and behind if you are on the west side.
What else can I help you with?
Why did the Egyptians use a water clock instead of a sundial?
becuase its cooler
What did Marco polo use in his adventures?
Marco Polo didn't bring any thing on his trip to china,but he did bring weapons like guns and swords on the boat fight though hope I helped, :)
Who invented the first sundial?
Theodosius of Bithynia invented the sundial.
What did the Mesopotamians use the sundial for?
The sun dial was used for telling time. The sundial would cast a shadow so people know what time of day it was by where the shadow fell.
Name the type of clock invented by the ancient egyptians that was of absolutely no use at night?
THE SUNDIAL
Why does the portable sundial need compass?
Because he portable sundial does not work without a compass
Why does a portable sundial need a compass?
Because he portable sundial does not work without a compass
Why does the portable sundial need a compass?
The compass on a portable sundial helps the user align the sundial accurately north-south, which is crucial for it to give accurate time readings based on the sun's position. By pointing the sundial's gnomon (the part that casts a shadow) towards true north using the compass, the sundial can accurately indicate the time.
What logo has a man standing on a sundial?
Rabobank has a man standing on an orange sundial or compass
Did the Qin dynasty have any discoveries?
they had many like the sundial and compass
What did George Washington use to tell the time?
He used a portable sundial.
Would your sundial read the same time as another sundial 100 miles directly north of you?
yes, as long as its on the same line of longitude you can use the same sundial
What are some inventions of the Greeks?
The greeks invented the sundial, the anchor (first made of wood), maps, coined money, the vending machine and the compass.
Does a sundial work?
if u know how to use it
How do you find solar time?
You use a Sundial.
How can we use shadow to tell the time?
You can use a sundial, which is a device that uses the position of the sun's shadow to tell time. By placing a stick or pointer on the sundial, the shadow it casts can indicate the time based on markings on the sundial's face.
How do you calibrate a sundial?
The gnomon of a sundial is cut to a certain size depending on the latitude of the sundial's location. If the gnomon is not of the correct size, it can be compensated for by raising or lowering the lower edge of the sundial until all times are accurate. Calibration is fairly simple. Using a precise time measurement, when it is noon, go outside and position the sundial so the shadow of the gnomon is on noon on the sundial. Check it again at 1 pm, and adjust as needed.
