When reading clock pulses only, the signal frequency is 625 kHz. The bit rate, however, is twice the signal frequency, or 1.25 megabits/sec.

It's possible to re-embroider motifs on fabric by sewing machine.

The United States adjusted to its interest in defending Europe, but did so with the smallest impact on its existing strategic identity, an instinct toward peripheralism.

Relations between the Qing court and the king of the Liuqiu Islands were maintained regularly; as the Qing emperors welcomed ambassadors and tribute missions from the Liuqius, Chinese coastal trade with the Liuqiu Islands flourished.