solar day

1 If a person doesn’t get enough exposure to daytime light, perhaps due to long hours at school or the office, misalignment between the various clocks and the solar day can set off cascading effects.

2 When deprived of information from the outside world, the sleep-wake cycle usually lagged slightly slower than the solar day, with a period averaging around 25 hours.

3 Near the December solstice, each solar day runs about 24 hours and 30 seconds long.

4 The first division of the day’s 24 hours (known in Latin as partes minutae primae) gave them the length of the minute, which was one-1,440th of an average solar day.

5 One solar day—a full day-night cycle—takes 176 Earth days.

6 It’s eleven-thirty at night according to my watch, but this far south the hour of the solar day is of no help in trying to understand the situation we’re in here, or our work rhythms.

7 In the 1980s and 1990s, the three scientists who received the award figured out how genetic time counters in cells aligned biological function to the 24-hour solar day.

8 The length of a solar day, measured by the time between the sun’s passage of any particular point in the sky, is rarely 24 hours precisely.

9 A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds.

恒星日比平均太阳日短三分五十六秒。

10 Its low amplitude makes it less important as a source of disturbance in magnetic prospecting than the solar component.

作为磁法勘探中的干扰源，它的幅度很小，所以远不及太阳日变分量那么重要。

1 太阳日

Sol eye of day

2 参照

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