This category is for sites about energy storage systems that use liquid nitrogen. When liquid nitrogen heats up it evaporates and expands, creating pressure if confined. Such pressure can be used to run engines and drive vehicles. It results in fair efficiencies, with low emissions overall.
This category is intended for science oriented site content. Please submit sites primarily selling products online to the most appropriate category within the Shopping branch as they will not be listed here.
Before submitting a site, be sure to read the corresponding category description.
Please submit to an appropriate subcategory, if one is available. Otherwise, submit here. Failure to submit to the most specific appropriate category can delay the consideration of your submission.
For more information, please refer to the DMOZ Science FAQ.