Functions of Lipids. A lipid is a non-soluble molecular organic compound comprised of hydrogen and carbon. As far as their purpose in the human body goes, lipids are of crucial importance for both energy storage and cell membrane development. Plants and animals alike contain lipids which they depend on for energy. Gram for gram, a lipid contains more than twice the amount of energy found in carbohydrates.
Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first patented, however, he was not the first inventor to come up with the idea of a telephone. Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone in 1849.
Nineteenth Century History : 1875 â 1899. 1875 Telephone invented (see 1876). Electric dental drill patented by George Green. Siegfried Marcus patents an internal combustion engine. While using paraffin in an attempt to invent and improve telegraphy tape, Thomas Alva Edison discovers a way to make duplicate copies of documents instead.