But he went on to write his name into the record books after reaching both poles and circumnavigating the globe on its polar axis
The explorer, who was first to reach both Poles, first to cross the Antarctic and Arctic Ocean, and the first to circumnavigate the world along its polar axis
, said it was "an example of great determination".
After carefully examining Mimas, we found it librates--that is, it subtly wobbles--around the moon's polar axis
After carefully examining Mimas, we found it librates -- that is, it subtly wobbles -- around the moon's polar axis
," said Radwan Tajeddine, Cornell University research associate in astronomy and lead author of the article.
A few of the accomplishments that have earned him his place in the record books include being the first to circumnavigate the world along its polar axis
, leading the first hovercraft expedition up the Nile - the longest river in the world, completing the first unsupported crossing of the Antarctic Continent (with Dr Mike Stroud) which was the longest unsupported polar journey in history, and discovering the lost city of Ubar on the Yemeni border in 1992, after seven previous searches.
Spin up to one revolution per second, with controlled spin axis alignment with the Earth polar axis
The polar axis
(P), equatorial diameter (E) and polar axis
to equatorial diameter (P/E) ratio of pollen grains of ten jujube cultivars were measured using scanning electron microscopy (SEM), and the results are displayed in Table 1.
An elbow joint enabled the tee joint holding the polar axis
to be coupled to the tripod such that the latitude angle could be set.
It is believed that mid-latitude glaciers developed at various times in the last several hundred million years, when the polar axis
of Mars was significantly different from today, leading to quite different climatic conditions.
It shows one polar axis
as a ray pointing to the right from the pole.
The x-axis is the intersection of the fundamental plane with the plane of the equator and is positive towards the east, and the y-axis is positive towards the north, thus making an angle equal to [delta] with the Earth's polar axis
, where 8 is the declination of the z-axis.
The main competitive advantage of this product is that it greatly improves production with regard to other single-axis azimuth trackers, as it allows manual adjustment from 20 degrees to 40 degrees of the tilt on the polar axis