Gelatin

(noun.) a thin translucent membrane used over stage lights for color effects.

(noun.) an edible jelly (sweet or pungent) made with gelatin and used as a dessert or salad base or a coating for foods.

(noun.) a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin.

整理:莱克格斯

• In practice some gelatin is mixed with the silver salt, and the mixture is then poured over the plate or film in such a way that a thin, even coating is made. 伯莎M.克拉克. 科学通论.
• It is the presence of the gelatin that gives plates a yellowish hue. 伯莎M.克拉克. 科学通论.

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