When the moon is in the first or third quarter, the sun's attraction in part counteracts the effect of the moon's attraction, thus producing under the moon a smaller tide than usual, called the neap tide.
Neap tides, the lowest tides of the lunar month, which occur in the second and fourth quarters of the moon; -- opposed to spring tides.
From this it will be seen that there are two spring tides and two neap tides in each twenty-eight days.
From the observed heights of spring and neap tides he determined the lunar tide, and thence made an estimate of the mass of the moon.
When the two agree, we get a spring tide of four feet; when they oppose each other, we get a neap tide of only two feet.
Every fortnight the two will agree, and you will get spring tides of maximum height CA + AB; every other fortnight the two will oppose, and you will get neap tides of maximum height CA-AB.
So we have spring tides regularly once a fortnight, with neap tides in between.
Probably the first connection observed was that about full moon and about new moon the tides are extra high, being called spring tides, whereas about half-moon the tides are much less, and are called neap tides.
The spring tide is lunar plus solar; the neap tide is lunar minus solar.
Hence the average spring tide is to the average neap as about 7 to 3.
The spring tides fill it, but during the neap tides the salt water is kept stagnant behind the sea-banks, making a small lagoon.
Although at neaptide on many occasions I gathered many more, it was more for the beauty of the shells than the flavour of the fish inside them.
She used to light them herself and neap the burners with sugar-candy, and on Divali [16] Day she used to worship them and make them suitable offerings.
Yes; the exact rise of a neap tide from dead low water to the top of high water.
Now, do you know the exact rise and fall of a neap tide at the Black Rock?
Its greatest and least elevations are called high and low water; its rising and falling are called flood and ebb; and the extraordinary high and low tides that occur twice every month are called spring and neap tides.
The spring tides occur at the syzygies: the neap tides at the quadratures.
Hence the difference between high and low water is only half as great at neap as at spring tide.
The inconvenience from the manufacturer's point of view of a deficiency of power during neap tides might not be compensated by the fact that he had an excessive supply of power at spring-tides.
At spring tides, when the sun and the moon conspire, the elevations rise much higher and the depressions sink much lower than they do at neap tides, when the high water raised by the moon is reduced by the action of the sun.
Tradition told how he had tied the neap of his cart to the porphyry shaft in the midst of the temple and how it had been declared that whoso should unbind it should become lord of all Asia.
The astonished priests started forward with a cry of protest, but before they could interfere, the flashing blade fell and the neap of the ancient cart clattered to the stone floor.
Its long neap was tied at the end to the shaft of stone with strips of cornel bark, brown and stiff with age and intertwined in curious folds that left no ends visible.
These observations show very little difference between the spring and neap tides, and are interesting as indicating the unreliability of basing general deductions upon data obtained during a limited period only.
The height from high to low water of spring tides is approximately double that of neap tides, while the maximum height to which spring tides rise is about 33 per cent.
The lines of "high and low water mark of ordinary tides" shown upon Ordnance maps represent mean tides; that is, tides halfway between the spring and the neap tides, and are generally surveyed at the fourth tide before new and full moon.
The first step in the practical design of the sewage works is to ascertain the level of high and low water of ordinary spring and neap tides and of equinoctial tides, as well as the rate of rise and fall of the various tides.
That the rise and fall of our tides twice a day, with spring and neap tides twice in the lunar month, are the effect of the combined action of the sun and moon, is never called in question.
Major Holland’s dire predictions about the neap tide had proven accurate.
Nicolaus Gagliano filius Alexandri fecit Neap 17-- His Violins and Violoncellos were made with care, and show that he possessed some amount of originality.
Ferdinandus Gagliano filius Nicolai fecit Neap 17-- His instruments are usually excellently made, and have a varnish of a warmer tint than is met with on the instruments of the Gagliano family.
The meaning of the tides being spring tides was that the jug was brimful of milk; but when he sent word that the tides were neap tides, I knew that some of the milk had been taken.
And so, why have we not Spring tides at the New Moon (when the motion is swiftest) and Neap tides at Full Moon (when the motion is slowest) but Spring tides at both?
