Determination of cardinal directions by the Sun and hours. Tourist tips

TOURIST ADVICE
Free library / Directory / Tourist tips

Determination of cardinal directions by the Sun and hours. Tourist tips

Tourist tips

The easiest way determining the north-south direction - Sun and clock. To do this, holding the watch horizontally, you need to point the hour hand at the Sun.

Pointing the arrow exactly at the sun will be easier if you combine the arrow with a shadow from a vertical object, such as a wall edge, a fence post, or a plumb line. The angle between the hour hand and the direction to the number 12 of the dial is divided in half. Then the bisector of this angle (equidividing line) will indicate approximately the north-south direction, or the noon line, and the south will be to the right of the Sun until 12 o'clock, and after 12 o'clock to the left.

Measurements will be more accurate the farther you are from the equator. In middle latitudes, the error can reach 20°. The bisector of the angle between the hour hand and 12 o'clock on the dial will point south. For example, if the clock shows exactly 4 pm, then with the hour hand pointing at the sun, the number 2 on the dial will point to the south.

This method is suitable for determining directions in the afternoon, namely from 6 in the morning to 6 in the evening. In the circumpolar regions, where in summer the sun does not set until 6 in the morning and after 6 in the evening this method will indicate the direction not to the south, but to the north.

Determining the direction of the Sun and the hours of the afternoon Defining the direction of the Sun and the hours of the afternoon

If your watch is not mechanical, but electronic, you can draw a dial on a piece of paper, draw the hour hand in the position at the time of measurement and orient the pattern according to the sun, as described above.

In the summer, many regions have an unpleasant habit of entering summer time, so noon in the summer there occurs not at 12 hours, but at 13. therefore, the angle in this case should be measured between the clockwise and the 1 digit. In the territory of the USSR, and now the Russian Federation, the so-called maternity time, shifting noon by another hour. Those. we have summer noon at 14 hours. Therefore, the angle should be measured between the clockwise and the 2 digit.

Less problems arise if the watch face has not 12 divisions, but 24. In this case, it is enough to direct the hour hand to the sun, and the beginning of the scale will immediately show south.

We recommend interesting articles Section Tourist tips:

▪ Land weather prediction

▪ Reptiles

▪ Unleashing figure eight

See other articles Section Tourist tips.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Notebook Huawei MagicBook 14 18.05.2022

Huawei has unveiled the next-generation 14-inch MagicBook 14 laptop. Even before the announcement, Huawei described the novelty as a device with outstanding autonomy, and now it became clear why it was implemented: the developers call the novelty the world's first 14-inch laptop with a 75 Wh battery. It was also said about the influence of Magic OS (this is a set of proprietary applications for Windows) on the device's ability to work 20 hours offline, but battery capacity still plays a decisive role here.

The MagicBook 14 2022 is thin and compact (although the screen bezels could be smaller), it even allows you to play games - and even with ray tracing! The Nvidia GeForce RTX 3 discrete 2050D accelerator is responsible for graphics processing in this model. Basic models get by with integrated graphics, and the "middle" version offers a simpler discrete GPU - the GeForce MX 550.

Processors - Intel Core i5-12500H in the base version and Intel Core i7-12650H - in the top one. The amount of LPDDR5 RAM was 16 GB, the amount of SSD - 512 GB. The novelty received a new cooling system with two fans, two heat pipes and a radiator increased by 66% of the area. Compared to its predecessor, the airflow is increased by 35%.

The 14-inch laptop screen covers 88,15% of the lid. The resolution is 2160 x 1440 pixels, the frame rate is standard 60 Hz. The display is characterized by a brightness of 300 cd/m1500, a contrast ratio of 1:100 and coverage of XNUMX% of the sRGB color space.

The case of Honor MagicBook 14 2022 is made of aluminum. The thickness is 15,9 mm, and the weight of the device is 1,54 kg. The configuration of the device also includes a fingerprint scanner built into the power key, a backlit keyboard, a webcam that allows you to record 720p video, a pair of USB-C ports.

The new MagicBook 14 with Core i5 retails for $810, but early adopters can pre-order for $735. The Core i7 version is priced at $840.

Other interesting news:

▪ Voice over Bluetooth Low Energy

▪ Wireless charging for iPhone and iPad

▪ VW ID.AERO electric sedan concept

▪ Germany and the UK will be connected by a high-voltage cable 1,4 GW

▪ Offshore platform for the creation of environmentally friendly hydrogen

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Household electrical appliances. Selection of articles

▪ article To err is human. Popular expression

▪ article Which tree grows the largest fruits in the world? Detailed answer

▪ article The main causes of electrical injuries

▪ article Automatic switching of LED garlands. Encyclopedia of radio electronics and electrical engineering

▪ article Desktop air ionizer. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews