The document discusses the key ingredient in Grandma's chocolate mousse, which is whipped cream. It explains that whipped cream holds its shape due to milkfat or butterfat, which contains palmitic acid. Palmitic acid makes up 31% of butterfat and milkfat. The document then provides background information on the three main elements that compose palmitic acid: oxygen, carbon, and hydrogen. It discusses the history, properties, uses and key facts about each element. In conclusion, it suggests palmitic acid could be used to make construction more efficient due to its explosive properties.