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topple down

[for a stack of something] to crumple and fall down. The chimney toppled down in the earthquake. The woodpile toppled down during the night and scared us all to death.
See also: down, topple

topple off (of) something

 and topple from something
to fall off the top of something very tall. (Of is usually retained before pronouns.) Careful there! You might topple off of that wall. I didn't get too close to the edge, because I was afraid of toppling off. She toppled off the wall. The vase toppled from its shelf in the quake.
See also: off, topple

topple over

[for something very tall] to fall over. I was afraid that Jimmy's stack of blocks would topple over. The stack of books toppled over and ended up as a jumbled mess on the floor.
See also: over, topple

topple something down

to cause a stack of something to crumple and fall down. The earthquake toppled the chimney down. The hurricane toppled down the weakest buildings.
See also: down, topple
References in periodicals archive ?
The dancer with the mass concentrated lower in the hips will topple more easily because the mass is distributed closer to the topple axis of rotation at the floor.
Knowing the 14 segment I's and the segment positions and orientations from the model, we calculated the total moment of inertia of the dancer in pirouette position around the spin (z) and topple axes (x and y) by "adding" the contributions of each individual segment.
2]), l is the distance from the pivot point to the center of mass, and I is the moment of inertia of the dancer around the topple axis.
Upon finding the principle moments of inertia of a dancer in pirouette position, it is shown that the two topple moments of inertia, [I.
We also assumed that both dancers began the turn with an initial topple speed of zero.
Experimental Determination of Initial Angle, Maximum Topple Angle for Stability, and Spin Rate
From these locations, the topple angle was calculated by Equation 7.
It was found that a dancer (male or female) in pirouette position is remarkably symmetric, with equal topple moments of inertia ([I.
On average, the dancers in this study hopped on the supporting foot after reaching a topple angle of [[theta].