The purpose of transmutation circles in Fullmetal Alchemist is to serve as a catalyst for performing alchemy. By drawing specific symbols and patterns, alchemists can manipulate the flow of energy and transmute one substance into another. The circles help to focus and control the alchemist's power, allowing them to perform complex and precise transmutations. Additionally, the circles can also contain specific runes and symbols that convey the alchemist's intent and knowledge, further enhancing the effectiveness of their alchemy. **

In proper alchemy, the transmutation circles in Fullmetal Alchemist are known as "transmutation arrays" or "transmutation diagrams." These circles are used to harness and manipulate the flow of energy in order to perform alchemical transmutations. The intricate designs and symbols within the circles are essential for controlling the elements and materials being transmuted. In the series, the characters use these transmutation circles to perform various alchemical feats, such as transforming objects or creating new materials. **

Spontaneous decay is a natural process in which an unstable atomic nucleus emits radiation in the form of alpha or beta particles, or gamma rays, in order to become more stable. This process occurs without any external influence and is a random event. On the other hand, artificial nuclear transmutation is the process of inducing nuclear reactions by bombarding a nucleus with high-energy particles, such as protons, neutrons, or alpha particles, in order to change its composition or create new isotopes. This process is initiated and controlled by humans in a laboratory setting. **

The caricature of the summit conference in Helsinki shows the leaders of the United States and Russia, Donald Trump and Vladimir Putin, sitting at a table with Trump holding a puppet string attached to Putin. This caricature is a satirical representation of the perception that Trump is under the control or influence of Putin, suggesting that Putin is pulling the strings and manipulating Trump. The image reflects the controversy and speculation surrounding the relationship between the two leaders and the potential influence of Russia on the United States. **

A symposium is a formal gathering or meeting where experts in a particular field come together to discuss and exchange ideas on a specific topic. It is often organized as a series of presentations, panel discussions, and Q&A sessions, allowing participants to share their knowledge and insights with each other. Symposia are commonly held in academic and professional settings, providing a platform for networking, collaboration, and learning within a specific discipline or industry. **

"Der Kongress tanzt" is a German phrase that translates to "The Congress Dances" in English. The phrase originated from the Congress of Vienna in 1814-1815, where European diplomats and leaders gathered to reorganize Europe after the Napoleonic Wars. The phrase is a metaphor for the diplomatic and political maneuvering that took place during the Congress, likening it to a dance where participants carefully navigated their relationships and alliances. It reflects the complex and intricate nature of international diplomacy and negotiations during this historic event. **

A convention is a formal agreement or a set of accepted norms and practices that govern behavior in a particular context or industry. It is a customary way of doing things that is widely recognized and followed by a group of people. Conventions help to establish consistency, order, and predictability in social interactions or professional settings. They can vary across different cultures, societies, or fields of study. **

The G20 summit is a meeting of the leaders of the world's 20 largest economies, representing both developed and developing countries. The summit provides a platform for these leaders to discuss and coordinate on global economic issues, such as trade, finance, and development. It is an opportunity for countries to work together to address common challenges and promote global economic stability and growth. The G20 summit also serves as a forum for leaders to address pressing international issues, such as climate change, terrorism, and global health crises. **