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J. Perelman
"Entertaining physics". Book 2.
Chapter 8. The magnetism. Electricity


In the practice of the Museum there is often a need to read the ancient scrolls, so old that they break and tear with the most cautious attempts to separate one layer of a manuscript from the next.

How to disconnect these leaves?

The Academy of Sciences of the USSR has the laboratory of restoration of documents, which have to resolve such problems. In the specified now if the laboratory does the job, resorting to the services of electricity: scroll electrified; the neighboring part thereof, receiving the same charge repel each other and gently, without damaging split. Such protruding scroll already relatively not difficult and skillful hands to deploy and pasted on heavy paper.

Entertaining physics J. Perelman


System Orphus


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