Relative direction
The most common relative directions are left, right, forward(s), backward(s), up, and down. No absolute direction corresponds to any of the relative directions. This is a consequence of the translational invariance of the laws of physics: nature, loosely speaking, behaves the same no matter what direction one moves. As demonstrated by the Michelson-Morley null result, there is no absolute inertial frame of reference. There are definite relationships between the relative directions, however. Left and right, forward and backward, and up and down are three pairs of complementary directions, each pair orthogonal to both of the others. Relative directions are also known as egocentric coordinates.
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Relative direction
The most common relative directions are left, right, forward(s), backward(s), up, and down. No absolute direction corresponds to any of the relative directions. This is a consequence of the translational invariance of the laws of physics: nature, loosely speaking, behaves the same no matter what direction one moves. As demonstrated by the Michelson-Morley null result, there is no absolute inertial frame of reference. There are definite relationships between the relative directions, however. Left and right, forward and backward, and up and down are three pairs of complementary directions, each pair orthogonal to both of the others. Relative directions are also known as egocentric coordinates.
has abstract
Direção relativa é a direção aparente do movimento de um objeto em relação a outro.
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The most common relative direc ...... own as egocentric coordinates.
@en
前、后、左、右、上、下都是表示相对方向的语汇。它们随某个人的 ...... 背後」)。在漢語裡,有「上北、下南、左西、右東」的習慣說法。
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Direção relativa é a direção aparente do movimento de um objeto em relação a outro.
@pt
The most common relative direc ...... own as egocentric coordinates.
@en
前、后、左、右、上、下都是表示相对方向的语汇。它们随某个人的 ...... 背後」)。在漢語裡,有「上北、下南、左西、右東」的習慣說法。
@zh
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Direção relativa
@pt
Relative direction
@en
相对方位
@zh