Results 261 to 270 of about 12,220 (308)
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2019
Until the seventeenth century, it was believed that orbits could only be circular. But in 1601, German astronomer Johannes Kepler acquired the planetary positional data of Tycho Brahe, who had recently died. The data was the most accurate of its time and spanned 15 years.
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Until the seventeenth century, it was believed that orbits could only be circular. But in 1601, German astronomer Johannes Kepler acquired the planetary positional data of Tycho Brahe, who had recently died. The data was the most accurate of its time and spanned 15 years.
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Ocular kinematics, vergence, and orbital mechanics
Strabismus, 2003Important aspects of ocular kinematics relate to the geometric configuration of extraocular muscles (EOMs). The orbital layer of each rectus EOM inserts on a connective tissue ring called a pulley that deflects the EOM path. Global layer fibers of each EOM pass through the pulley to insert on the sclera.
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Quantum mechanical Earth: where orbitals become orbits
European Journal of Physics, 2012Macroscopic objects, although quantum mechanical by nature, conform to Newtonian mechanics under normal observation. According to the quantum mechanical correspondence principle, quantum behavior is indistinguishable from classical behavior in the limit of very large quantum numbers.
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Orbital and Celestial Mechanics
1968Analysis of entry dynamics was discussed in Chapter 2. It is the purpose of this chapter to discuss basic equations governing the flight mechanics before entry into a planetary atmosphere. When a vehicle approaches a planet in the absence of air, its orbital trajectory may be in the form of an ellipse when its speed is less than \(\sqrt {2gr,}\)*, a ...
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2010
The design and operation of remote-sensing systems depends on the orbital motion of the satellites they employ, and consequently a proper understanding of how they work and how to exploit them requires knowledge of orbital mechanics. This chapter provides an understanding of orbital mechanics as it impacts remote sensing.
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The design and operation of remote-sensing systems depends on the orbital motion of the satellites they employ, and consequently a proper understanding of how they work and how to exploit them requires knowledge of orbital mechanics. This chapter provides an understanding of orbital mechanics as it impacts remote sensing.
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Introduction to Orbital Mechanics
American Journal of Physics, 1972F. T. Geyling +2 more
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Mechanisms of Tumor Metastasis in the Orbit
2006Most of the cancer deaths occur due to metastatic disease which is largely incurable because of its systemic nature and the resistance of disseminated tumor cells to existing therapy. Metastastatic expansion takes place as a result of an elaborate multistep cell-biological course of events, which involves dissemination of cancer cells to distant ...
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