Could graphene foam be a future Helium substitute?
I just did a back-of-the-envelope calculation to work out what size of sphere containing a vacuum would give the same average density as helium at room temperature, if the sphere is made of graphene, the new one-size-does-everthing-you-can-imagine wonder material. Why? Well, the … Continue reading Could graphene foam be a future Helium substitute?
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