DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 12th April 2024
Archives (PRELIMS & MAINS Focus) Time Standard for Moon Syllabus Prelims – Science Context: The United States officially directed the National Aeronautics and Space Administration (NASA) to create a time standard for the Moon, which different international bodies and private companies can use to coordinate their activities on the lunar surface. Background:- According to Reuters, the head of the White House Office of Science and Technology Policy (OSTP) told the space agency to work with other parts of the US government to finalise the strategy by the end of 2026 for establishing what it called a Coordinated Lunar Time (LTC). Time Standard for Moon: Most of the clocks and time zones are based on coordinated Universal Time (UTC), which is set by the International Bureau of Weights and Measures in Paris, France. UTC is essentially an internationally agreed upon standard for world time. It is tracked by a weighted average of more than 400 atomic clocks placed in different parts of the globe. If a country lies on the west of the Greenwich meridian, it has to subtract from the UTC, and if a country is located on the east of the meridian, it has to add. UTC cannot be used to determine time on the Moon because time on the Moon flows differently than it does on the Earth. Why do we need a time standard for the Moon? Time flows differently on the Moon, and cannot be determined using UTC. Time is not absolute and it ticks slightly faster on the Moon as compared to the Earth. It is due to Einstein’s theory of general relativity which tells us that gravity bends space and time. On the Moon, the Earth-based clock will appear to lose on average 58.7 microseconds per Earth day with additional periodic variations. Improper time standards can create problems for spacecraft trying to dock on the Moon, transfer of data at a specific time, navigation, and communication. There may be a problem with multiple spacecraft working together at the same time. For example, NASA’s Artemis program aims to send humans back to the Moon after September 2026, and China and India intend to send their own astronauts to the lunar surface by 2030 and 2040 respectively. According to a 2023 report by the journal Nature, there will be a need to place at least three atomic clocks on the lunar surface that will tick at the Moon’s natural pace, and whose output will be combined by an algorithm to generate a more accurate virtual timepiece. These clocks have to be placed on the Moon at different locations since the Moon’s rotation and even local lumps of mass, called mascons, beneath the crust of the Moon affect the flow of time ever so slightly. These effects are minor but the output from these clocks can be synthesised to give the Moon its own independent time, which can be tied back to UTC for seamless operations from Earth as well. What are atomic clocks? Atomic clocks measure time in terms of the resonant frequencies — the natural frequency of an object where it tends to vibrate at a higher amplitude — of atoms such as cesium-133. In atomic time, a second is defined as the period in which a caesium atom vibrates 9,192,631,770 times. Source: Indian Express The Azad Hind government Syllabus Prelims & Mains – History Context: Kangana Ranaut, in a recent interview, claimed that Subhas Chandra Bose, not Jawaharlal Nehru, was the first prime minister of independent India. After being criticised for the historicity (or lack thereof) of her comments, Kangana doubled down, citing the provisional government setup by Bose in 1943 as evidence of her claim. Background: Notably, 28 years before the Azad Hind government came into existence, the Provisional Government of India was formed in Kabul by a group known as the Indian Independence Committee (IIC). About the Azad Hind government: Subhas Chandra Bose proclaimed the formation of the Provisional Government of Azad Hind (“Free India”) in Singapore on October 21, 1943. Bose was the Head of State of this provisional government, and held the foreign affairs and war portfolios. A C Chatterjee was in charge of finance, S A Ayer became minister of publicity and propaganda, and Lakshmi Swaminathan was given the ministry of women’s affairs. A number of officers from Bose’s Azad Hind Fauj were also given cabinet posts. The Azad Hind government claimed authority over all Indian civilian and military personnel in Britain’s Southeast Asian colonies (primarily Burma, Singapore, and Malaya) which had fallen into Japanese hands during World War II. It also claimed prospective authority over all Indian territory that would be taken by Japanese forces, and Bose’s Azad Hind Fauj, as they attacked British India’s northeastern frontier. To give legitimacy to his government, much like Charles de Gaulle had declared sovereignty over some islands in the Atlantic for the Free French, Bose chose the Andamans. “It [the Azad Hind government] obtained de jure control over a piece of Indian territory when the Japanese handed over the Andaman and Nicobar islands in late December 1943, though de facto military control was not relinquished by the Japanese admiralty,” Sugata Bose wrote. Diplomatically, Bose’s government was recognised by the Axis powers and their satellites: Germany, Japan, and Italy, as well as Nazi and Japanese puppet states in Croatia, China, Thailand, Burma, Manchuria, and the Philippines. Immediately after its formation, the Azad Hind government declared war on Britain and the United States. Notably, 28 years before the Azad Hind government came into existence, the Provisional Government of India was formed in Kabul by a group known as the Indian Independence Committee (IIC). Much like Bose allied with the Axis powers during World War II to fight the British, during World War I, Indian nationalists abroad (mostly in Germany and the US), as well as revolutionaries and Pan-Islamists from India, attempted to further the cause of Indian independence with aid from the Central Powers. The IIC, with the help of the Ottoman Caliph and the Germans,
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