March 5th is World Energy Efficiency Day, European Geodesy and Geoinformation Day, and Dissociative Identity Disorder Awareness Day. In different years, many important events in science, politics, culture, and technology have taken place on March 5th, leaving a noticeable mark on the history of different countries and eras.
World Energy Efficiency Day
Every year on March 5th, the world remembers the importance of rational use of energy. The date appeared at the beginning of the 21st century as a reminder of the limited energy resources and the impact of energy consumption on the environment. The focus is on simple and practical approaches to reducing electricity, heat, and fuel consumption in everyday life, industry, and transport. The issue of energy efficiency is related to reducing greenhouse gas emissions, saving natural resources, and reducing costs for households and the economy.
Energy efficiency means getting the same benefit from energy at lower costs. This concerns the modernization of buildings, insulation of housing, the use of energy-saving equipment, the development of renewable energy sources and efficient heating systems. For many countries, in particular for Ukraine, this topic is of practical importance due to the high energy intensity of the economy and dependence on energy resources. Rational use of energy helps to reduce the load on the power system, reduce fuel consumption and increase energy security.
Interesting facts
On average, about a third of all energy consumed by buildings in the world is spent due to heat loss through walls, roofs, windows and ventilation. In old buildings, this share can exceed half of all energy used for heating.
LED lamps consume approximately 8–10 times less electricity than traditional incandescent lamps and can operate for up to 25 thousand hours. During this time, one LED lamp can save as much electricity as would be enough to operate a refrigerator for several years.
In Denmark, part of the heat for cities is generated by recycling waste at special power plants. Incineration of waste is used to produce electricity and hot water for central heating, which reduces the need for fossil fuels.
Ukraine has long been one of the most energy-intensive economies in Europe. Several times more energy was spent on the production of a unit of GDP than on average in the EU countries, which was one of the reasons for large-scale programs for warming buildings and modernizing heating networks.
The first mass programs for warming high-rise buildings in Eastern Europe began after the energy crisis of the 1970s. In some cities in Poland and the Czech Republic, after the modernization of old panel houses, heat consumption decreased by almost half.
In Kyiv, a significant part of the heating networks was laid back in the 1960s and 1970s. Due to the wear of pipes, up to 15–20 percent of thermal energy was sometimes lost during transportation from boiler rooms to houses.
Scandinavian countries actively use the heat generated in data centers. Server rooms produce a large amount of heat, which is transferred to the district heating systems, thanks to which residential areas are heated.
So-called passive houses are common in Germany. Their design allows for almost no use of traditional heating: heat is retained thanks to thick insulation, airtight windows and ventilation with heat recovery.
Household appliances in standby mode continue to consume electricity. In some households, such “hidden” consumption can amount to up to 5–10 percent of the annual electricity bill.
European Geodesy and Geoinformation Day
Every year on March 5, Europe celebrates a day dedicated to geodesy and geoinformation technologies. This date is associated with the recognition of the role of accurate measurements of the earth’s surface and spatial data in the development of infrastructure, cartography, urban planning and environmental management. Geodesy provides the determination of coordinates, elevations and boundaries of territories, and geographic information systems allow you to store, analyze and use this data in digital form. Together, they form the basis of modern maps, navigation and territorial planning.
The practical significance of geodesy and geographic information includes the construction of roads and bridges, the laying of engineering networks, the creation of cadastral systems and monitoring environmental changes. Satellite technologies, digital maps and unmanned aerial vehicles have significantly expanded the possibilities of collecting and processing geospatial data. In many European countries, these technologies are used to manage cities, control land use and respond to natural disasters.
Interesting facts
Geodesy is one of the oldest applied sciences. In ancient Egypt, surveyors restored field boundaries after the annual flooding of the Nile, since the water washed away boundary marks and it was necessary to accurately determine land plots again.
The first large-scale geodetic measurements in Europe began in the 17th and 18th centuries to create accurate maps of countries. Such work required the construction of triangulation networks of hundreds of points located on hills, towers, and specially built signal towers.
The GPS satellite navigation system, which is used today in smartphones and cars, works on the basis of geodetic principles. To accurately determine the coordinates, the receiver simultaneously receives signals from at least four satellites and calculates its position in space.
In many European countries, old geodetic points, established more than a hundred years ago, are still used as a basis for modern measurements. Some of these marks are made in the form of metal centers embedded in stone or concrete.
In Ukraine, triangulation networks began to be actively created in the 19th century. Some geodetic points were installed on the tops of mounds, church bell towers, and special wooden or metal towers to ensure visibility between measurement points.
Modern geographic information systems are used in urban planning to analyze traffic flows, development, and green spaces. Thanks to spatial data, cities can predict the expansion of districts, optimize transportation, and plan engineering networks.
Unmanned aerial vehicles have significantly accelerated surveying work. Drones can create detailed orthophoto maps of an area in a few hours, which previously required days of airplane flights and complex photogrammetric processing.
One of the oldest surveying methods — triangulation — is based on measuring angles between points. Knowing the length of only one baseline and the angles of triangles, surveyors can calculate the coordinates of dozens of other points over a large area.
Dissociative Identity Disorder Awareness Day
The purpose of celebrating this day is to better understand this mental condition and inform society about the peculiarities of the lives of people living with it. Dissociative personality disorder is a complex mental disorder associated with a disruption of the integrity of the perception of one’s own personality, memory, and consciousness. In the international medical classification, it is considered one of the dissociative disorders that can arise as a result of severe psychological trauma.
The condition is characterized by the presence of several different identities or personality states, which alternately affect a person’s behavior. Such changes may be accompanied by memory lapses, a feeling of alienation from oneself or the world around them. Diagnosis and treatment usually require long-term psychotherapy and the participation of specialists in the fields of psychiatry and psychology. The dissemination of reliable information helps reduce stigmatization and avoid simplified or distorted ideas about this disorder.
Interesting facts
The term “dissociative personality disorder” appeared in psychiatry at the end of the 20th century. Until the 1990s, the medical literature more often used the term “multiple personality,” which was later replaced by a more accurate term that reflects the mechanism of mental dissociation.
Most people with this disorder have experienced severe psychological trauma in childhood. Scientific studies often mention prolonged violence, serious stressful events, or severe emotional neglect, which could contribute to the formation of mechanisms for psychological separation of experiences.
The number of identities can vary greatly from person to person. Clinical cases have described from two to several dozen personality states, which may have different ages, characters, behavior, or even different memories.
Medical studies show that during the transition between different personality states, physiological indicators of the body can change, including heart rate, brain responses to stimuli, and even vision.
Dissociative personality disorder is much less common than is often shown in popular culture. Psychiatrists estimate that it may affect about 1–1.5 percent of the world’s population.
The first detailed descriptions of cases resembling dissociative identity disorder appeared in the 19th century. Doctors noticed patients who had changes in behavior, memories, and speech patterns, but at that time these phenomena were explained by other mental conditions.
In some patients, different identities may have different skills or preferences. For example, one identity may use a different hand to write or have a different style of speech.
Symptoms of the disorder sometimes go unnoticed or misinterpreted for a long time. Some people only receive an accurate diagnosis many years after the first symptoms appear, as the condition can resemble other mental disorders.
Historical events on this day
1558 — Spanish physician and naturalist Francisco Fernandez, on behalf of King Philip II, went to New Spain, the territory of modern Mexico, to study local plants, medicinal herbs, and food products. His expedition was one of the first attempts at a systematic study of the American flora by European scientists. It was from this time that Europe began to become more familiar with tobacco, which gradually became a widespread crop on the continent.
1616 — The Catholic Church added Nicolaus Copernicus’ work “On the Revolutions of the Celestial Spheres” to the Index of Forbidden Books. The book set out a heliocentric model of the world, according to which the Earth and other planets revolve around the Sun. For the church doctrine of that time, such views were considered dangerous, since they contradicted traditional ideas about the structure of the Universe.
1770 — In Boston, during a tense confrontation between colonists and British soldiers, an event known as the Boston Massacre occurred. British soldiers opened fire on a crowd of townspeople protesting the presence of British troops. As a result, five people were killed, and this incident became one of the symbols of the escalation of the conflict, which later led to the American Revolutionary War.
1774 — In the courtyard of the Palais de Justice in Paris, the memoirs of playwright Pierre Beaumarchais were publicly burned by order of the authorities. In his work, he sharply criticized the French judicial system and described cases of abuse and unfair decisions. This step of the authorities was intended to destroy the work and significantly punish the author for criticizing state institutions.
1792 — The revolutionary authorities of France decided to close the Sorbonne University and all theological faculties in the country. This was part of a major educational reform and an attempt to weaken the influence of the church on educational institutions during the French Revolution.
1824 — The First Anglo-Burmese War began between the British Empire and the Kingdom of Burma. The conflict arose due to territorial disputes and the struggle for influence in Southeast Asia. The war lasted several years and ended with significant territorial losses for Burma.
1836 — American inventor Samuel Colt introduced an industrial model of a .34 caliber revolver. Its design with a rotating cylinder allowed for multiple shots without reloading, which was an important step in the development of small arms and influenced the military and civil history of the United States.
1842 — A Mexican army unit of about five hundred soldiers invaded Texas. The troops took up several positions, but after a short operation they quickly retreated back across the Rio Grande River. The event became one of the episodes of tense relations between Mexico and the Republic of Texas.
1861 — Russian Emperor Alexander II issued a manifesto on the abolition of serfdom. The document granted personal freedom to millions of peasants who had previously been attached to the landowners’ lands. The reform became one of the largest social changes in the Russian Empire of the 19th century.
1868 — A device for fastening paper was patented in Great Britain, which later became known as a stapler. The invention greatly simplified the work with documents in offices, institutions and publishing houses.
1904 — Inventor Nikola Tesla published a description of the phenomenon of ball lightning. He tried to explain the mechanism of its formation and behavior, which at that time remained a mysterious natural phenomenon.
1912 — During the Italo-Turkish War, the Italian army first used aviation for military purposes to conduct aerial reconnaissance. The planes observed enemy positions behind the Turkish defense line, which was one of the first examples of the use of aviation in military affairs.
1933 — Against the backdrop of the Great Depression, US President Franklin Roosevelt announced the so-called “bank holiday”. All banks in the country temporarily stopped working, and financial transactions were frozen. This step allowed to stabilize the banking system and prevent mass withdrawal of deposits.
1933 — Parliamentary elections were held in Germany, in which the National Socialist Party received about 44 percent of the vote. This result significantly strengthened the position of Adolf Hitler and contributed to the establishment of the Nazi regime.
1940 — The Politburo of the Central Committee of the All-Union Communist Party of the Soviet Union (Bolsheviks) decided to apply the death penalty to Polish prisoners of war who were in Soviet camps after the partition of Poland. More than twenty thousand officers, policemen and intellectuals were sentenced to death by firing squad. This event became known as the Katyn tragedy.
1946 — British politician Winston Churchill, in a speech in the American city of Fulton, used the expression “iron curtain” to describe the division of Europe after World War II. His speech became one of the symbolic beginnings of the period of confrontation between the West and the Soviet Union, which was called the Cold War.
1960 — Singer Elvis Presley completed his service in the US Army and returned to civilian life. After demobilization, he resumed his musical career and once again became one of the most famous figures in popular culture.
1970 — The Treaty on the Non-Proliferation of Nuclear Weapons, concluded between the states of the world under the auspices of the international community, primarily at the initiative of the nuclear powers and with the support of the United Nations, entered into force. The document enshrined the principle of limiting the spread of nuclear technologies for military purposes and became one of the key international mechanisms for controlling nuclear arms.
1970 — Scientists finally confirmed the existence of a chemical element with atomic number 105. It was later named dubnium in honor of the Russian city of Dubna, where one of the nuclear research centers is located.
1979 — The Voyager 1 spacecraft approached Jupiter at a minimum distance during its flight. The photographs and data transmitted by it allowed us to obtain new information about the planet’s atmosphere, its satellites, and its powerful magnetic field.
1982 — The Soviet automatic station Venera-14 reached the surface of the planet Venus. The device transmitted data on the temperature, pressure and composition of the atmosphere to Earth, and also took photographs of the planet’s surface.
1995 — The Internet service IRC, a system for real-time text communication, began operating. It became one of the first popular online communication tools long before the advent of modern social networks.
1998 — The US National Aeronautics and Space Administration reported that the Clementine spacecraft, operating in lunar orbit, had detected signs of significant reserves of water ice. This discovery increased interest in the possible creation of future lunar bases.
2000 — British scientists successfully cloned pigs for the first time. The achievement was an important milestone in the development of biotechnology and opened up new opportunities for research in the fields of medicine and genetics.
