Milankovitch cycles

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Milankovitch cycles

[mē·lən′kō·vich ‚sīk·əlz]
(geophysics)
Periodic variations in the earth's position relative to the sun as the earth orbits, affecting the distribution of the solar radiation reaching the earth and causing climatic changes that have profound impacts on the abundance and distribution of organisms, best seen in the fossil record of the Quaternary Period (the last 1.6 million years).
References in periodicals archive ?
He said: "As millenniums passed by, the moon's gravitational pull has made the Earth wobble around its axis, creating about a onebump month in the stars.
0 on the Richter Scale - powerful enough to make the Earth wobble on its axis.
This can make the rotating earth wobble, just as moving the balancing weights on the wheel of a car can change the way the hub rotates.
Axial precession occurs on a cycle of roughly 26,000 years and arises because the Earth wobbles slightly as it rotates, similar to the wobble of a toy top.
A Minnesota astronomer was quoted as saying that the constellations have slipped around the sky over the centuries because the Earth wobbles slightly on its axis,.
The axis of the earth wobbles, altering its angle of inclination to the sun.
Astronomers have long known that the Earth wobbles as it spins.
The reason the phenomena no longer can be observed is because of precession - a process in which the Earth wobbles on its axis just as a toy top does in the direction of its spin.
Scientists say that the earth wobbles a bit as it travels through space, but not the Global Cooler.