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Volume 2023, Issue No.12, Dec.01-31, 2023 Time: 08:49AM
Professor Dr. Kotcherlakota Lakshmi Narayana.
M.Sc. (Math. Phys.), M.Sc. (Nucl. Phys.), Ph D. (AU), Int. Edu & Res. (Sweden 1964-65)
While returning from Sweden, in 1964-65, spent a few days in England, Paris, Egypt, Czechoslovakia etc. countries, Visited USA about 12 Universities, several National Laboratories and Institutes for four months Sept.to December 1988, courtesy by my sister Dr. Rama Leela, and in 1989 visited Japan for about TEN days, and South Korea Conf. in Physics for a week in 1989. Undertook several trips in India to educate the Shivaji University, Kolhapur M.Sc. Physics students across India during 1966 to 1985; [Retd. on 2000 July 31, Prof of Physics, Shivaji University, Kolhapur - 416004]. Present Address: 17-11-10, Narasimha Ashram, Official Colony, Maharanipeta.P.O., Visakhapatnam-530002, AP. Cell:09491902867. kotcherlakota_l_n@hotmail.com, lakshminarayana.kotcherlakota@gmail.com, DOB:23-07-1940, evening between 6 and 6:01 PM. My father Prof. K. R. Rao D.Sc. (Madras) D.Sc. (London) recorded it since his own birth time in the morning was not recorded in 1899 or so.
ABSTRACT
French honor's for senior woman scientist of Isro Surendra Singh, Proof of Indus-Saraswati Civilization’s Technology, Wheat is produced for six crops a year. Developed by German researchers. A startup is using woodchips to make synthetic graphite for EV batteries, a 65-year-old scientist has donated solar lamps to 31 houses, Nepal pitches for Sita’s birthplace in Janakpur, Just before Anwesha wraps up her recital by touching the stage with respect, she returns to a performance dedicated to Narasimha. Assam government converts madrasas into general educational institutions, Metal items are said to be drawn to the temple's main idol, which is thought to be magnetised, Sudarshan Chakra, a weapon shaped like a disc and connected to Lord Krishna, is housed in the shrine.
DETAILES:
Nov. 05, 2023: When and where gunpowder first appeared is not quite known, and its history is a subject of ongoing research and debate. There is evidence to suggest that substances resembling gunpowder were known and used in India by the 4th century BC, while clearer accounts emerge around the 4th century CE, it being important to note that historical records from that period are often limited or not well-preserved. Legend has it that gunpowder was developed in China around the Tang and Song dynasties (9th to 11th century CE). Again, there is an absence of facts to this end. Gunpowder appeared in European chronicles a few centuries later and again tradition has it that the knowledge for producing this explosive went from China to Europe through the Silk Route.
Fig., 06.
Dec. 06, 2023: Mysterious mineral produced in ocean could keep Earth cool, even induce ice age. ndia Today Science Desk • 16h. identified a clay mineral known as smectite that possesses the remarkable ability to capture and store carbon for millions of years, potentially playing a significant role in cooling our planet. Found within the intricate layers of the seafloor, smectite's accordion-like structure is adept at trapping organic carbon, a process that has been occurring since the dawn of plate tectonics.
Dec. 06, 2023:Aryan Rajvanshi, a 16-year-old Class 11 student from Anand Niketan International School in Ahmedabad (Gujarat) recently gained international recognition for his groundbreaking project, MechaCrop, which uses drones and artificial intelligence to improve the lives of farmers in India. Aryan represented India at the 07th Edition of 1M1B Activate Impact Summit 2023 held at the United Nations on 30 November, 2023.
Dec. 06, 2023:Cyclone wreaks havoc as heavy rains lash Andhra coastal districts. Suresh Dharur, Hyderabad •5h.
Dec. 06, 2023: Captain Geetika Koul Becomes First Woman Medical Officer To Be Deployed At Siachen. ABP News Bureau • 17h. First woman medical officer to the highest battlefield, Siachen. Indian Army’s Fire and Fury Corps which handles some of the most sensitive frontiers and battlefields in the world, took to X, formerly Twitter and posted about Captain Geetika Koul who successfully completed the induction training at Siachen Battle School to become make history..
Dec. 06, 2023: Nepal asks Russia to STOP recruiting its citizens as mercenaries after six killed in Ukraine War. Abhishek Awasthi • 19h. Nepal stated that six of its citizens had died while acting as mercenaries in the Russian army and that another had been taken prisoner in Ukraine. Moscow was urged by Kathmandu to cease using Nepali mercenaries and to return any men who were serving to their homes.
Fig. 18.
Dec. 16, 2023: Three abandoned temples of Vijayanagara era found near Gorantla in Andhra Pradesh. GORANTLA (SRI SATHYA SAI DISTRICT). These temples, now in dilapidated condition, were the target of treasure hunters for nearly three centuries and people have shunned the structures because they believe that those might be sheltering evil spirits, says journalist-turned-historian Mylaram Narayanaswamy.
The Three Laws of Motion by Rishi Kanada’s Vaisheshika Sutra
The Vaisheshika Sutra or Kanda Sutra was a compilation of many works of the Sanatani sage Rishi Kanada. The sage was also sometimes referred to as Rishi Kashyapa. The sutra provides a profound insight into the nature of motion and force. It also houses the knowledge of atoms, gravity, and other important studies of the physical world!
First Law of Motion:
Isaac Newton’s Presentation: An object at rest remains at rest, and an object in motion remains in motion at a constant speed and in a straight line unless acted on by an unbalanced force.
KANADA SUTRA: वेगः निमित्तववशेषात किमणो जायते|
Meaning: A change in motion is caused by an force.
Thus, it is clear that this sutra is mirrored by Newton in his first law!
Second Law of Motion:
Isaac Newton’s Presentation: The acceleration of an object depends on the mass of the object and the amount of force applied.
KANADA SUTRA: वेगः निमित्तापेऺात किमणो जायते नियतदिक क्रियाप्रबन्धहेतु|
Meaning: An impressed force can cause a proportional change in Motion in the direction of the force.
Thus, it clearly presents the principle that was stated by Newton’s second law of motion. The Sutra establishes the relationship between force and motion. It also emphasizes that the acceleration of an object is directly proportional to the force applied.
Third Law of Motion:
Isaac Newton’s Presentation: Whenever one object exerts a force on another object, the second object exerts an equal and opposite on the first.
KANADA SUTRA: वेगः संयोगववशेषववरोधी|
Meaning: Any motion is a sum of the action and reaction of forces.
This sutra’s depth is shallowly reflected in Newton’s third law! It embodies that every motion is the sum total of opposing forces. Thus, every action will cause an equal and opposite reaction that will affect the motion of the object.
Dec. 16, 2023:Aurora-like 'Steve' phenomenon and glowing 'picket fences' point to unknown exotic physics. Samantha Mathewson. Some purple and white streaks called "STEVE" (Strong Thermal Emission Velocity Enhancement) and a corresponding on-off green glow that resembles a picket fence with jagged points are actually produced by different physical processes making them distinct from auroras.
Dec. 16, 2023:It wants Indian corporates to take advantage of the St. Petersburg International Economic Forum (SPIEF) to strike deals and establish themselves in the fastest growing economy in Europe.Alexey Valkov, Deputy Director of the Roscongress Foundation and Director of SPIEF, told businessline that the Russian economy has several niche areas that have been left vacant by European and American companies that had to leave due to pressure from their governments.
Dec. 16, 2023: GreekReporter.com. Ancient GreeceThe Ancient Greek Sovereign Queen of India. The Ancient Greek Sovereign Queen of India. By Arunansh Β. Goswami. December 3, 2023. FACEBOOK. TWITTER. WHATSAPP. Coin of ancient Greek Queen of India, Agathoclea Theotropus. Image Credits: CNG Coins via Wikipedia, CC-BY-SA-3.0. An ancient Greek queen named Agathoclea Theotropus, who compared herself to the goddess Athena, and became the ruler of Punjab, India, set the precedence for female sovereigns in Ancient and Medieval India. She was the wife of the second greatest Buddhist emperor in India, the Greek King of India Menander (Milind) I Soter. Unlike kings, there have been only very few queens throughout world history who have ruled as sovereigns and also issued their very own currency. This has been because of the substantially patriarchal views of human societies, with matriarchy being rather rare in most parts of the world. Ancient Indian society had its own achievements and deficits when it came to empowerment of women, especially when analyzed from various viewpoints. However, this did not make it a non-patriarchal society by any means. Strato I Soter with the Divine Agathoclea. Image Credits: CNG Coins via Wikipedia, CC-BY-SA-3.0. Much like Ancient Greek society, earlier Indian society was biased towards men. Despite extreme social constraints on women in classical antiquity in Greece and India, however, there were also a number of powerful female goddesses. These included Athena, Artemis Aphrodite, Hera, Hestia, and Hecate in Greece. Durga, Chandi, Shakti, Saraswati, Lakshmi, Parvati, and Kali were among such goddesses in India. After the death of Alexander the Great, several Greek queens, including Olympias, Adea Eurydice, and Cratesipolis, ruled portions of Alexander’s former empire in an unprecedented situation. This was in part due to outside influences which had infiltrated the Macedonian kingdom. Another reason for this was that Macedonian soldiers were, in fact, willing to follow women’s orders. Grecian Delight supports Greece. One of these women was Basilissa Theotropos Agathoclea, an Indo-Greek sovereign and mother of Maharaja Tratarasa Dhramikasa/Stratasa, meaning King Strato, the savior and the just. Sovereign queens of Ancient India. Coins of Queen Didda (979 – 1003 AD). The Queen is depicted sitting cross legged on one side and standing on the other. Coins of Queen Didda (979 – 1003 AD). The Queen is depicted sitting cross-legged on one side, while she is standing on the other. Image Credits: Old Coins India via Wikipedia CC BY-SA 4.0. It cannot be denied that sovereign queens in the land of India were extremely rare to come by. The first queen in the area to rule as a sovereign and issue her own currency was the Greek Queen Agathoclea of Punjab. After her, few other Indian queens ruled as sovereigns or issued their own coins. Queen Naganika, wife of King Satakarni of the Satavahana Dynasty, was another rare example after Agathoclea. Naganika is one of the earliest persons in Indian history whose name has been associated with King Satakarni on the coins. During the rule of Bhaumakaras of Toshali and Utkala in the 8th to 10th century A.D., six queens—among these Tribhuvana Mahadevi, Prthvi Mahadevi, Gouri Mahadevi, Dandi Mahadevi, and Dharma Mahadevi—occupied the throne. The last four queens ruled successively. Somala Devi, queen of the Chahamana Dynasty of Sakambhari, issued coins in her name. She ruled in the 13th century A.D. On her coins were either a bull or a horseman on one side and the queen herself on horseback on the obverse with a reference to the “Sri Somala Devi” legend in Nagari script. Didda, the Hindu queen in Kashmir had issued coins in her name as well. She belonged to the Vappadava Dynasty, which reigned from 1172 to 1338 A.D. During the reign of Mughal Emperor Jahangir, the real power was exercised by his queen, Nurjahan. She proclaimed herself de facto authority through the coins that were issued in the cities of Agra, Ahmedabad, Akbarnagar, Allhabad, Kashmir, Lahore, Patna, and Surat. Idealized Portrait of the Mughal Empress Nur Jahan (1577-1645)?, circa 1725-1750, wife of Jahangir, Kishangarh. Idealized Portrait of the Mughal Empress Nur Jahan (1577-1645)?, circa 1725 to 1750, wife of Jahangir, Kishangarh. Image Credits: Los Angeles County Museum of Art via Wikimedia commons. The coins also contained a couplet, best translated as: “By order of Shah Jahangir, [the] gold attained a hundred beauties when the name Nurjahan Badshah Begum was placed on it.” These coins remained in circulation until the end of Jahangir’s reign on November 6, 1627 A.D. Queen Agathoclea’s Life and Legacy. Maharaja Menander I Soter, Indo-Greek King in Gujarat. The four sons of King Demetrius were Euthydemus, Demetrius II, Pantaleon, and Agathocles. Yet, Demetrius likely also had a daughter, who later became the Indo-Greek Buddhist King Menander’s wife, namely Queen Agathoclea. From Agathoclea’s use of Euthydemus’ coin of Heracles seated on a rock, it is believed that she must have been King Demetrius’ daughter. Yet, other experts say that, based on the dates, she could have only been his granddaughter. Assuming that Agathoclea was Demetrius’ daughter rather than that of Apollodotus, she may have married Menander, her father’s general, right after Demetrius’ death and his own return around the year 166 from modern Patna in the Bihar state of India. Another theory is that she did not marry Menander until after the death of Apollodotus made Menander the sole repository of power in India and sole effective support of the Euthydemid cause. This would have been around the year 161 at the latest. A later time than 166 AD seems possible yet unlikely. Upon his death, Agathoclea became regent for her eldest son, Strato I. He was still a minor at the time but was expected to take over power at the age of eighteen. Coin of Indo-Greek Queen Agathocleia of India. Agathoclea’s first coins as regent bore solely her own portrait. Strato was named only in the Kharoshthi legend. The second series of coins shows jugate busts of herself and Strato. Lastly came Strato’s coinage depicting him alone. As per William Woodthorpe Tarn, a British historian of antiquity who wrote profusely on the Hellenistic world, Agathoclea was between twenty-four to thirty-four years of age when she married King Menander. It was very possible she was just under thirty. There is evidence that Greek princesses did not marry prior to the age of thirty, with some marrying even later. For instance, Ptolemais and Berenice I come to mind, and Cleopatra VII was thirty-three when she married Anthony. As far as Agathoclea is concerned, it may well have been the case that, unlike her sisters in the West, there was no suitable partner for her to marry. It is generally safe to assume that a princess would not marry a commoner. A Roman copy of a Greek statue of goddess Athena. Agathoclea must have been an ambitious woman. She described herself as “God-like” (Greek: Theotropos)—a title which was used by no other Greek ruler—on her coins and even compared herself to goddess Athena. She was indeed one of the earliest cases of women to have ruled a Hellenistic kingdom following the reign of Alexander the Great. More female rulers would follow, however, including Cleopatra Thea of the Ptolemaic line, who would rule for the remainder of the Seleucid Empire. Queen Agathoclea issued gold, silver, copper, and bronze coins during her reign. Most of her coins were jointly issued with her son, Strato I. Earlier on, his portrait was not depicted, yet he was shown standing in arms and holding the spear. Later on, the conjoined busts of both Agathocleia and Strato I were engraved on coins. Agathoclea was the first of several Indo-Greek rulers to make a gesture of benediction with her right hand. This was identical to the Buddhist vitarka mudra, a symbolic, ritualistic hand gesture used in yoga, Buddhism, and Hinduism. On her coins, Strato I is shown making the sign as well. This sign is visible on coins of Amyntas, Nicias, Peucolaus, Hermaeus, Hippostratus, and Menander II. A statue depicting Buddha performing the vitarka mudra. A statue depicting Buddha performing the vitarka mudra. Its use in Indo-Greek coinage may be the consequence of the initiation of Agathoclea’s defunct husband, Menander I, to Buddhism, as described in the Milinda Panha. Strato I was also the first Indo-Greek king with Zoilos I, another immediate successor to Menander, to be referred to as “follower of the Dharma” on his coins. Equality. In this age of rising social movements in support of human rights for all individuals, the study of early pioneers for woman empowerment is essential. Hence, the study of Queen Agathoclea’s life and legacy is quite valuable. In India, she showed the way for future Indian women leaders. Today, Indian women are in highly-esteemed positions of power in various industries and even throughout the world. Indra Nooyi, the former CEO of PepsiCo, is one such example while Roshni Nadar Malhotra is the chairperson of HCL Technologies. Other female leaders include: Dr. Soumya Swaminathan, the chief scientist of WHO; Leena Nair, CEO of Chanel; Madhabi Puri Buch, the chairperson of the Securities and Exchange Board of India (SEBI); and Gita Gopinath, the director of the International Monetary Fund (IMF). Furthermore, Sonia Syngal is the CEO of Gap Inc while the Vimeo CEO is Anjali Sud, and Vertex Pharmaceuticals is led by CEO Reshma Kewalramani. These are but a handful of the many Indian women leaders of our time. It should not be dismissed that India, the largest democracy in the world, has also had a female head of government, namely former Prime Minister Indira Gandhi. The empowerment of women in today’s India has been inspired by numerous female historical figures throughout Indian history, including the Indo-Greek Queen Agathoclea.
Dec. 16, 2023:The advance, detailed in a paper published recently in the journal Physica Scripta, could enable more efficient compact fusion reactors that are easier to repair and maintain. "The fusion community is urgently looking for new manufacturing approaches to economically produce large plasma-facing components in fusion reactors," says Mykola Ialovega, a postdoctoral researcher in nuclear engineering and engineering physics at UW–Madison and lead author on the paper. "Our technology shows considerable improvements over current approaches. With this research, we are the first to demonstrate the benefits of using cold spray coating technology for fusion applications." The researchers used a cold spray process to deposit a coating of tantalum, a metal that can withstand high temperatures, on stainless steel. They tested their cold spray tantalum coating in the extreme conditions relevant to a fusion reactor and found that it performed very well. Importantly, they discovered the material is exceptionally good at trapping hydrogen particles, which is beneficial for compact fusion devices. "We discovered that the cold spray tantalum coating absorbs much more hydrogen than bulk tantalum because of the unique microstructure of the coating," says Kumar Sridharan, a professor of nuclear engineering and engineering physics and materials science and engineering. Over the last decade, Sridharan's research group has introduced cold spray technology to the nuclear energy community by implementing it for multiple applications related to fission reactors.
Dec. 16, 2023:TIRUPATI: In a significant move to promote and advance the ancient science of Ayurveda, the Tirumala Tirupati Devasthanams (TTD) has announced plans to establish an Ayurvedic University in Tirupati. This initiative aims to provide students, researchers, and experts with world-class infrastructure and resources to pursue their passion for Ayurveda. Sada Bhargavi, TTD's Joint Executive Officer for Health and Education, unveiled the university plans during the inauguration of a continuing medical education (CME) programme in Tirupati.The ongoing CME program, organized under the Ayush ministry, features 12 renowned Ayurvedic experts conducting sessions for participants from various states. Bhargavi encouraged ayurvedic practitioners to combine traditional knowledge with modern technology and research to establish India as a global leader in the healthcare sector. She emphasised the vast medical wisdom contained in the Vedas and its potential to benefit society when integrated with contemporary research. The proposed university will provide top-notch facilities and resources to enhance the learning experience for students, support research endeavors, and empower experts to contribute to the advancement of Ayurveda.
Dec. 16, 2023: DRDO successfully conducts trial of India-made high-speed UAV. Express Web Desk • 6h.Defence Minister Rajnath Singh appreciated the DRDO, Armed Forces and the Industry for the successful flight trial of the system, according to a press release. Singh stated that the successful development of such critical technologies indigenously will further strengthen the Armed Forces.
Dec. 16, 2023: Research reveal disturbing changes in waters surrounding Bermuda. Srishti Sisodia • 19h.Climate change is real and it has been leaving a massive impact on oceans and marine life. Global warming impacts ocean circulation, which means a decrease in oxygen levels, changes in nutrient supply and salinification, and ocean acidification. Now, scientists have observed troubling changes in the waters surrounding Bermuda.
Dec. 16, 2023: He reminded the Rajya Sabha this week that “Pakistan Occupied Kashmir is ours and no one can snatch it from us...” In almost the same breath he said that full statehood to Jammu and Kashmir would come at an appropriate time. Let us consider the second statement first. Ever since the abrogation of Article 370 in 2019, four years ago, the state is nowhere near seeing an election, even though official noises to that effect have been heard intermittently. If in four years Delhi has been unable to conduct elections, how long do you think it will take for it to take back all of Pakistan Occupied Kashmir? Here is the unsaid part: Pakistan has gifted more than 5000 sq km of the area we consider our Jammu and Kashmir to the Chinese. They have signed agreements in 1963. The Chinese have been merrily building roads and infrastructure in those very areas, via their Belt and Road Initiative. All we have done is wring our hands helplessly, not much else.
Dec. 16, 2023: Shah's statement comes a day after Canadian Prime Minister Justin Trudeau said that his decision to make allegations in public about a possible Indian government link and the killing of Hardeep Singh Nijjar was intended to “put a chill” on them from repeating a similar action.
Dec. 16, 2023: IIT Kanpur receives $200,000 donation from alumnus Ashish Karandikar, three endowed programs to be established. HT Education Desk, New Delhi • 1d. Three endowed programs to foster innovation, excellence, and academic growth within the Electrical Engineering department.
Dec. 16, 2023: Odisha suffered about Rs 596 cr flood damage per year from 2017-21. 1d.
Dec. 16, 2023: In a move to boost the tourism and employment rate in Uttar Pradesh, the state government has formed the Inland Water Authority to give a kickstart to waterway services in rivers like Saryu, Rapti, Yamuna, and Ganga. It has been stated in an official release the move will not just promote cruise services, but also help the state in many ways. It will also generate employment on a large scale for the public.
Dec. 16, 2023: Japan and Malaysia sign $2.8 mln maritime security assistance deal. Ayndrila Banerjee • 1h. Japan will provide equipment such as rescue boats and supplies under the official security assistance deal, signed by the two countries’ foreign ministers on the sidelines of a Tokyo summit marking 50 years of ties between Japan and the Association of Southeast Asian Nations (ASEAN).
Dec. 16, 2023: After 67 Years In Central India, IIT-Indore Hosts DAE Symposium On Nuclear Physics. 19h. the 67th DAE Symposium on Nuclear Physics-2023 from 9 to 13 December, with a pre-symposium orientation programme on the theme “Nuclear Shell Model”. “These symposia aim to provide a scientific forum for the nuclear physics community to present their research work and to interact with the researchers, which helps in furthering the subject boundaries. The scientific deliberations of the symposium consist of plenary talks, oral/poster presentations of contributory papers, and theses presentations.”
Fig, 20, Telangana: Nirmal’s integrated farming oasis blooms on one acre.
Fig. 25.
కశ్మీర్ను తలపించే అందాలు మన హైదరబాద్లోనే ఉన్నాయి. అయితే మరి ఇంకెందుకు ఆలస్యం కొండాపూర్లోని మంచు సోయగంతో అల్లుకున్న "స్నో కింగ్డమ్" అతిశీతలమైన మాయాజాలాన్ని, అతి తక్కువ బడ్జెట్తో మీరు థ్రిల్ చేసేయండి. భారతదేశంలోని అతిపెద్ద స్నో థీమ్ ఇండోర్ వినోద కేంద్రం చెన్నై, ముంబై నగరాలతో పాటు "శరత్ సిటీ క్యాపిటల్ మాల్, కొండాపూర్లో అలరిస్తోంది.
Introducing Regula 5006: A Cutting-Edge Portable Spectrometer-Microscope. The Regula 5006 represents a significant advancement in the field of portable spectroscopic and microscopic analysis. This innovative device combines the functionality of a spectrometer and a microscope, providing a comprehensive solution for on-the-spot material analysis. It is designed for a wide range of applications, from forensic science to quality control in manufacturing. The Regula 5006 stands out for its portability, ease of use, and the high precision of its measurements.
- It is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.
- Fusion reactions take place in a state of matter called plasma—a hot, charged gas made of positive ions and free-moving electrons with unique properties distinct from solids, liquids, or gases.
- The sun, along with all other stars, is powered by this reaction.
- What are Tokamaks?
- The devices designated for the task of doing this here on Earth—nuclear fusion reactors — are called tokamaks.
- Tokamaks are often also called 'artificial suns' due to the fact that these doughnut-shaped machines replicate processes that occur in the sun.
- There are currently over 200 tokamaks in operation across the globe, with the scientific milestones achieved in these devices developing a roadmap for the operation of the International Thermonuclear Experimental Reactor, or ITER, the world's largest fusion experiment under construction in the south of France.
- A commercial tokamak will aim to use the thermal energy of plasma heated by fusion to heat water, create steam, and, in turn, spin a turbine that generates electricity.
- Though fusion can involve a wealth of chemical elements, the nuclear reaction that most tokamaks aim to make viable is the fusion of the heavy hydrogen isotopes deuterium (with a nucleus of one proton and one neutron) and tritium (one proton and two neutrons). Fusing the atoms of these elements together creates a neutron and a helium nucleus.
- Advantages of Nuclear Fusion:
- Nuclear Fusion produces more energy than fission does. Fusion could generate four times more energy per kilogram of fuel than fission (used in nuclear power plants) and nearly four million times more energy than burning oil or coal.
- It also doesn’t produce radioactive byproductsthat need to be stored or harmful carbon emissions; it simply produces inert helium and a neutron.
- Unlimited Fuel Supply: The fuel to make fusion happen is simply heavy hydrogen atoms, which can be found in something that Earth has in abundance: seawater. No mining of uranium is required.
- It is much safer than nuclear fission, since fusion can’t create runaway reactions.