Selenium cells

Selenium Cells: The Construction Care and Use of Selenium Cells with Special Reference to the Fritts Cell by Thos. W. Benson is a comprehensive guide on selenium cells. The book provides detailed information on the discovery naming and classification of selenium as an element. It covers the different forms of selenium - amorphous vitreous and metallic and their properties. The author discusses various types of selenium cells including the Bildwell cell Ruhmer cell Bell and Taintor cell Mercadier cell Gripenberg cell and the Fritts cell. The construction process of the Fritts selenium cell is explained in detail highlighting the importance of applying selenium to the copper plate using a hot press. The book also delves into testing and maturing selenium cells with a focus on the methods for measuring resistance in dark and light conditions. Furthermore the book explores the applications of selenium cells in various fields. It discusses the use of selenium cells in photometric applications transmission of speech over beams of light automatic control of light buoys astronomical applications talking pictures and controlling mechanisms at a distance. The author also mentions innovative applications such as the Phonoptican for the blind to read printed matter by sound the Electric Dog that follows a light source and the use of selenium cells in cable telegraphy and burglar alarms. The potential of selenium cells in generating current and utilizing solar energy is also highlighted. Overall Selenium Cells provides a comprehensive overview of the construction care and diverse applications of selenium cells making it a valuable resource for researchers and enthusiasts in the field. The book discusses the properties and care of selenium cells which are the forerunners of solar generators. The cells have the ability to produce sounds when a current is passed through them and they can even reproduce speech when connected to a microphone and battery. The sensitivity of the cells varies depending on the type of battery used with them opening up possibilities for experimentation. To ensure the longevity and effectiveness of selenium cells it is important to keep them cool use small current values and expose them to light regularly. Proper care and maintenance can prevent irreparable damage to the cells and ensure their optimal performance.