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“If we didn’t have this ‘blessed’ blockade here, we would have bought tubes for the tomograph,” he said.

Oxygen can also be measured by tracing radioactive markers with a positron emission tomograph, but this expensive equipment is not widely available.

When Zbik got some lunar soil and a nano tomograph in the same room together, he knew that the first thing he wanted to look at were the infinitesimal glass bubbles in the lunar material.