In ancient times, particularly during the biblical period, purple dye was made from the secretions of sea snails, primarily the species Bolinus brandaris (the Tyrian or Phoenician purple snail) and Murex trunculus. These snails were found in the Mediterranean Sea, notably around the region of Tyre in Phoenicia (modern-day Lebanon). The process to make the dye was labor-intensive and costly. It involved collecting thousands of snails, then crushing them to extract the precursor to the dye. This substance would then be exposed to sunlight, undergoing a chemical transformation to become a vibrant purple. The rarity and difficulty of producing this dye made purple garments exceptionally valuable, reserved for royalty, nobility, or ecclesiastical garments in many societies. The production methods remained a closely guarded secret, contributing to its value and the establishment of Tyre as an important trading city.

Determining the gate size in injection molding is vital for optimizing flow and preventing defects. The gate size is influenced by the material's viscosity, part size, and wall thickness. Generally, a larger gate is used for high-viscosity materials to reduce shear stress and improve flow. For thinner parts, smaller gates are preferred to minimize aesthetic issues. A rule of thumb is that the gate depth should be 50-60% of the part’s wall thickness, while the width can vary based on part design and material. Consulting material data sheets and using simulation software can provide specific guidance. Additionally, experience and trial runs play a crucial role in fine-tuning the gate size for optimal results.

To craft blue dye in ARK: Survival Evolved, you'll need to gather 15 Azulberries, 2 Charcoal, and a Waterskin with at least 25% water. These ingredients go into a Cooking Pot or an Industrial Cooker. Light the cooker, and the dye will be crafted after a short period. Azulberries are common and can be harvested from bushes around the island with your hands or more efficiently with a dinosaur. Charcoal is produced by burning wood in a campfire, forge, or industrial forge. This simple process allows players to customize their items and structures with vivid colors, enhancing the visual appeal and personalization in ARK.