Author –

David Humphreys

Articles by this Author

Today’s scientific research requires super-accurate clocks. The best mechanical clocks are inadequate because they might gain or lose at least four seconds a year. Modern quartz watches are more relia…

David Humphreys

Science Shorts

2004 Volume 1 Issue 2

Vocational

Red Sky at Night

Signs in the sky have long been used for weather predictions. About 2000 years ago the Gospel of Matthew records an ancient version of the rhyme many of us learned as children, ‘Red sky at night, shep…

David Humphreys

Science Shorts

2004 Volume 1 Issue 3

Vocational

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