What causes a helix in nature to appear with either a dextral ("right-handed,"or clockwise) twist or a sinistral ("left-handed," or counterclockwise') twist is one of the most intriguing puzzles in the science of form…What mechanisms, control handedness and keep left-handedness rare? It...
Azimuth(方位角) is the horizontal angle measured in a clockwise direction from the plane of the meridian ,which is a line on the mean surface of the earth joining the north and south poles.The bearing(方位) ,which can be measured clockwise or counterclockwise from the north or south end ...
The bearing(方位) ,which can be measured clockwise or counterclockwise from the north or south end of the meridian,is always accompanied by letters that locate the quadrant in which the line falls.The zenith(天顶角) is an angle measured in a vertical plane downward from an upward directed ...
Clockwise and counterclockwise arrivals at LMO are considered for outgoing trips, and clockwise and counterclockwise departures from Moon are considered for return trips. The time of flight varies from 4.5 to 5.3 days for outgoing trips or for return trips. Numerical results show that the fuel can...
Another way to observe the Earth's rotation is through a Foucault pendulum. This device consists of a heavy weight suspended from a long wire that swings back and forth. As the Earth rotates, the plane of the pendulum's swing appears to rotate clockwise or counterclockwise, ...
While the new conclusion is based on a fraction of such sites under the world’s oceans, a consistent pattern was present, VanderBeek said. At the three sites, the mantle’s flow is rotated clockwise or counterclockwise rather than in the directions of the separating plates. The mantle’s ...
-180 through 180 where a positive value indicates angles to the east or clockwise from north and a negative value indicates angles to the west or counterclockwise from north. SUN_ELEVATION Double Sun elevation angle in degrees for image center location at image center acquisition time. -90 ...
That is to say, it appears to be spinning counterclockwise(逆时针) when viewed from above the North Pole.But what if Earth started spinning the other wayScientists from Germany have made a computer simulation(模拟) in which Earth spins in the opposite direction – clockwise when viewed from ...
While the new conclusion is based on a fraction of such sites under the world's oceans, a consistent pattern was present, VanderBeek said. At the three sites, the mantle's flow is rotated clockwise or counterclockwise rather than in the directions of the separating plates. The mantle's flo...
Scientists from Germany have made a computer simulation in which Earth spins in the opposite direction—clockwise when viewed from above the North Pole. This showed them some interesting things about the weather and geography on Earth, Live Science reported. As Earth spins in a counterclockwise di...