One can become a silversmith without formal training by learning through self-study and practice. There are many resources available such as books, online tutorials, and workshops that can help one learn the necessary skills and techniques. It is important to start with basic tools and materials, practice different techniques, and gradually work on more complex projects to improve one's skills. Additionally, seeking guidance and feedback from experienced silversmiths or joining a community of artisans can also be beneficial in honing one's craft. **

One can become a silversmith without formal training by learning through online resources, books, and tutorials. Practice and experimentation with different techniques and tools are essential to develop skills in silversmithing. Joining local craft groups or workshops can also provide opportunities to learn from experienced silversmiths and gain hands-on experience. Building a portfolio of work and seeking feedback from peers or mentors can help improve craftsmanship and creativity in silversmithing. **

Based on the sterling silver mark "925" and the style of the ring, it is likely that this ring was made by a reputable silversmith or goldsmith who specializes in sterling silver jewelry. Some well-known silversmiths and goldsmiths who are known for their sterling silver work include Tiffany & Co., David Yurman, and Georg Jensen. However, without more specific information about the ring, it is difficult to determine the exact maker. **

Without more specific information, it may be difficult to determine the manufacturer of the sterling silver bangle made by the silversmith JC. However, if there are any markings or hallmarks on the bangle, they could provide clues to the manufacturer. Additionally, researching the silversmith JC and any associated companies or manufacturers may also help identify the source of the bangle. Consulting with a professional appraiser or silver expert may also provide valuable insights into the origins of the piece. **

The silver hallmark on the far left in the first photo appears to be the lion passant, which is the standard mark for sterling silver in the United Kingdom. This mark indicates that the item is made of at least 92.5% pure silver. Without more specific information, it is difficult to determine which silversmith it belongs to, as the lion passant is a standard mark used by all silversmiths producing sterling silver items in the UK. **

Self-luminous bodies are objects that emit their own light, as opposed to reflecting light from another source. Examples of self-luminous bodies include stars, the sun, and certain types of light bulbs. These objects generate their own energy through processes like nuclear fusion or electrical current, which produces light as a byproduct. **

No, the luminous clock is not radioactive. The luminescence in the clock is typically achieved using a phosphorescent material that absorbs light and then slowly releases it over time. This process does not involve any radioactive materials. The glow from the clock is simply a result of this light-absorption and emission process. **

A luminous point is a theoretical concept used in physics and optics to represent a source of light that emits light in all directions. It is often used as a simplification in the study of light and its behavior, allowing for easier calculations and analysis. In reality, a luminous point does not exist as a physical object, but it is a useful tool for understanding the behavior of light in various systems. **