ROBERT BROOK / SCIENCE PHOTO LIBRARY ROBERT BROOK / SCIENCE PHOTO LIBRARY
Liquefied nitrogen storage tanks. Nitrogen is liquid at temperatures below 198 degrees Celsius. It is liquefied to reduce its volume for ease of storage and transport. In its liquid form, it is used as a refrigerant and for low-temperature research. Photographed at Coryton oil refinery, Essex, UK.
Model release not required. Property release not required.