Liquid helium tanks are specialized containers designed to store and transport liquid helium, a cryogenic liquid that remains at extremely low temperatures. These tanks are built to maintain the low temperatures necessary to keep helium in its liquid state, typically around -269 degrees Celsius. They are often used in scientific research, medical applications, and industrial processes. The design of liquid helium tanks includes insulation and pressure control systems to prevent heat transfer and maintain the liquid's state. Cryogenics, the study of materials at very low temperatures, plays a crucial role in the development and use of these tanks, ensuring safety and efficiency in their operation.