...rotations of hot and cold seasons. But such a supposition is directly contradicted by geological evidence. The inclination of the earth's axis to the plane of the ecliptic, or what is technically called the obliquity of the ecliptic, is not the sole cause of climatic variations...

...so uniform and continuous for hundreds or thousands of years as that of the changes of season due to the inclination of the earth's axis to the plane of the ecliptic ; and these changes imply a solar control. The evidences of drought, also, cannot be accounted for...

...species can attain dominance. ANNUAL SUCCESSION The annual revolution of the earth about the sun and the inclination of the earth's axis to the plane of the ecliptic produce a regularly recurring series of seasonal changes which are most pronounced near the poles and...

...hills, out of the reach of seed from the natural Firs." there it is brought about naturally — by the inclination of the earth's axis to the plane of the ecliptic — and the amount of sunlight received during the season of growth is immensely greater than anywhere...

...scale, is bent round into a complete circle and becomes a model which can be interpreted as showing the inclination of the earth's axis to the plane of the ecliptic. These simple observations on the noonday shadow fall into the Nature-study period : we see their development...

...climate had been uniform since the creation and that there had been no variation of consequence in the inclination of the earth's axis to the plane of the ecliptic. Men, however, could make significant local changes. The contrasts, so typical of men of this period...

...in an ordinary spinning top, is extremely slow, with a period of roughly 26,000 years. In addition, the inclination of the earth's axis to the plane of the ecliptic changes very slightly; the period of this nutational disturbance is about 40,000 years. Further, the...

...sink below the horizon throughout the 24 hours, and therefore may be seen at midnight. It is due to the inclination of the earth's axis to the plane of the Ecliptic, and the consequent tilting of each hemisphere towards the sun during its summer. Mineral : A natural...

...The succession of the seasons is the result of the annual revolution of the earth round the sun, and of the inclination of the earth's axis to the plane of the ecliptic. The angle of inclination is about 23J degrees. It thus follows that the axis of the earth, though it...

...mining operations and reduce monthly crushings." One would have supposed that even if he had never heard of the inclination of the earth's axis to the plane of the ecliptic, a writer qualified to speak about South African mines would have discovered that the seasons at the...