A solider from england..( Frank Noodler ) 1956...
A king was typically carried in a palanquin, a portable throne carried by servants or bearers. This mode of transportation allowed the king to be comfortably seated and carried by others while appearing regal and dignified. It was a common practice in many ancient and medieval cultures around the world.
Yes, Ptolemy developed a method to determine true north by using a sundial. By observing the shadow cast by the sundial at different times of the day, one could align the sundial's gnomon (the part that casts the shadow) with true north.
Portable gas canisters or portable gas cylinders.
A sundial at the North Pole would function differently than those at lower latitudes due to the extreme polar conditions. During summer, the sun remains above the horizon for 24 hours, making it difficult to use a sundial to track time accurately. Conversely, in winter, the sun does not rise at all, rendering the sundial ineffective. Additionally, the angle of the sun's rays would be nearly horizontal, complicating the shadow casting needed for timekeeping.
The benefits of purchasing a handheld GPS system are that it makes the device very portable, and it can be moved from vehicle to vehicle easily. It can also be carried from place to place without taking up much space.
Because he portable sundial does not work without a compass
Because he portable sundial does not work without a compass
He used a portable sundial.
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.
The sundial wasn't portable
Portable
portable
The sundial itself doesn't really change day to day, or even year to year. They are generally fixed to the Earth and are not, in general, portable. The shadow cast by the "gnomon" (the pointer of the sundial) does move moment by moment throughout the day, and slightly from day to day.
Portable
crable
portable
They are the ancient of all scientific instruments and by the second millennium there were both fixed and portable units from the Middle East, China and Egypt