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It could be that even relativity fits a pattern—“a further testament,” he writes, “to the underlying fundamental nature of the periodic law.”

The British chemist William Odling discovered the “periodic law” — properties of a family of elements that repeat, approximately, at regular intervals.

Nineteen years ago, the British government passed one of its periodic laws to manage how people move through the countryside.

Fish and Game will also be required to provide periodic law enforcement services on the endowment land and enforce any rules and regulations implemented by the state Department of Land as part of the agreement.

The structure of the molecule, which mainly followed investigations in organic compounds, Frankland’s conception of valency, and finally the periodic law, have also been shown in their chronological order.