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...health hazards associated with the process. The “block mould process” is often a more economical process for light castings. Moulds consist of several hundred small components, and are centrifugally cast. Materials: Almost all metals and alloys can be investment cast, but the process is best suited to those materials that are difficult to die cast, forge or machine....

...health of the ocean. [The Conversation]Making algae a common part of more people’s diets won’t be easy. We need to ensure that any new algae food products on our dinner plates have the needed nutritional value but are also attractive and safe to eat. But sticking with our traditional salmon and tuna diet isn’t sustainable. Expanding our seafood menus could be a...