The crystal glasses have become milky due to a process called etching. Etching occurs when the surface of the glass is eroded by the combination of alkaline dishwashing detergents and hot water, which can create a cloudy or milky appearance on the glass. This can also happen when the glasses are washed in hard water, which contains high levels of minerals that can leave a film on the glass. To prevent this, it is important to use a gentle, non-abrasive detergent and avoid washing the glasses in very hot water. **

The answer to whether product design or interior architecture is better ultimately depends on personal interests and career goals. Product design involves creating tangible objects that serve a specific function, while interior architecture focuses on designing interior spaces that enhance the user experience. Both fields offer unique opportunities for creativity and innovation, so it is important to consider which aligns more with your passions and strengths. Ultimately, the decision between product design and interior architecture should be based on individual preferences and career aspirations. **

The crystal green-transparent-milky stripe you are describing could be a variety of minerals, but one possibility is fluorite. Fluorite is a colorful mineral that can range from green to purple, and it often has transparent or milky stripes running through it. It is commonly used in jewelry and as a decorative stone. Another possibility is apatite, which can also exhibit similar green and transparent milky qualities. Both minerals are known for their vibrant colors and unique crystal formations. **

Interior architecture focuses on the structural and spatial elements of a space, including the layout, flow, and functionality. It involves designing and coordinating the interior structure of a building, such as walls, ceilings, and floors. On the other hand, interior design focuses on the aesthetics and decorative aspects of a space, including furniture, color schemes, and accessories. It involves creating a cohesive and visually appealing environment that reflects the client's needs and style preferences. While interior architecture deals with the physical structure of a space, interior design focuses on the visual and decorative elements. **

Production planning involves determining the resources, materials, and processes needed to manufacture a product efficiently and cost-effectively. It includes scheduling, forecasting, and coordinating various activities to ensure smooth production. On the other hand, construction instructions for a product provide detailed step-by-step guidance on how to assemble or build the product. These instructions are typically aimed at the end-user or assembly line workers and focus on the physical construction or assembly process rather than the overall planning and coordination of production. **

One can study architecture or interior design by enrolling in a formal education program such as a bachelor's or master's degree in architecture or interior design at a university or college. These programs typically cover design principles, building technology, history of architecture, and practical skills such as drafting and computer-aided design. Additionally, gaining practical experience through internships or apprenticeships with established architects or designers can provide valuable hands-on learning opportunities. Networking with professionals in the field and attending workshops, conferences, and exhibitions can also help in expanding one's knowledge and skills in architecture or interior design. **

Some ideas for product design include incorporating sustainable materials and practices, focusing on user experience and usability, creating products that are customizable or modular to adapt to different needs, and incorporating innovative technology such as IoT or AI. Additionally, designing products that are aesthetically pleasing and visually appealing can also enhance their marketability and user satisfaction. It is important to consider the target audience, market trends, and functionality when brainstorming ideas for product design. **

One can study product design by enrolling in a formal education program such as a bachelor's or master's degree in industrial design, product design, or a related field. These programs typically cover topics such as design principles, materials and manufacturing processes, user research, and prototyping. Additionally, individuals can also learn product design through online courses, workshops, and self-study, by practicing design skills, and by seeking mentorship or internships in the industry. It's also important to stay updated on current design trends and technologies to excel in the field of product design. **