Three-dimensional object always rotates around an imaginary line called a rotation axis.
1 Along the rotation axis were three long cylindrical chambers six hundred metres wide.
2 Right in the centre of the grid, aligned along the rotation axis , was the arkship's spaceport.
3 Small chemical rockets flared around its edges, brilliant sulphur-yellow flames pushing the ship in towards the rotation axis .
4 Based on a multi-image calibration method, an algorithm to extract the rotation axis of a turn-table has been developed.
5 Because the major dust jet remained fixed in orientation, it is evidently aligned near the rotation axis of the nucleus.
6 The H atoms of the axially bonded water mol-ecule are incompatible with the fourfold rotation axis and are disordered over two sites.
7 Basically, the moment of inertia is a property of an object that depends on the distribution of the mass about the rotation axis .
8 His inertial guidance display showed him it was inclined slightly, heading away from the rotation axis , though there was still no appreciable gravity.
9 It will carry a robotic arm and two black-and-white cameras as well as instruments to measure Martian seismic activity and the planet's rotation axis .
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