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# rotation

«rotation» in Mova's judaism dictionary: **turning around a centre point or a line: "the rotation of…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (a rotation, rotations; rotation as uncountable)

### meaning for a pupil

1) Rotation is turning around a centre point or a line: "the rotation of the Earth". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#m1)

2) A rotation is one complete turn: "the wheel makes 10 rotations a minute". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#m2)

3) In maths, a rotation is a turn of a shape around a fixed point by an angle, such as a quarter turn (90 degrees). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#m3)

4) Rotation is taking turns in a fixed order: "we do the jobs in rotation". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#m4)

5) Crop rotation is growing different crops in a field each year to keep the soil healthy. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#m5)

### sense in the lessons

Interpretation: The turning of the letters in the "gates" is read by tradition as the way they combine to make all things. In the primary lessons: In maths, rotations are given by an angle (90, 180, 270 or 360 degrees), a direction (clockwise or anticlockwise) and a centre of rotation; rotational symmetry means a shape looks the same after part of a turn. In science, the Earth's rotation on its axis makes day and night, taking about 24 hours. In PE and school jobs, things done in rotation are shared fairly. Phrases: rotation of the Earth, in rotation, quarter rotation, rotational symmetry, crop rotation.

### examples

- Rotation; from חָלֹל to dance round. (Sefer Yetzirah, Kalisch 1877) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x1)
- Just as the sphere remains the same during the rotation on its axis in its setting and in its rising; yet it appears to us as if it had undergone a great change on account of its different position. (Sefer Yetzirah, Kalisch 1877) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x2)
- The rotation of the Earth gives us day and night. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x3)
- One full rotation of the Earth takes about 24 hours. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x4)
- Rotate the triangle 90 degrees clockwise about point A. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x5)
- A full rotation is 360 degrees; a half rotation is 180 degrees. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x6)
- The wheel made 50 rotations in a minute. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x7)
- We take the class jobs in rotation. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x8)
- Farmers use crop rotation to keep the soil rich. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/#x9)

### note

Verb: rotate. Do not mix up rotation (spinning on its own axis: Earth, one day) and revolution or orbit (going around something else: the Earth around the Sun, one year). In maths, a rotation keeps the shape's size and form; only its direction changes. Anticlockwise (UK) = counterclockwise (USA).

### In the corpora

- [Changing the crop in each field from year to year is called crop rotation and keeps the soil healthy.](https://md.mova.elamur.ai/free/en/corpora/school/biology/349-a-year-on-a-farm-lambing-haymaking-harvest-and-winter-feeding/16/)

### Trees and pragmatics

[Every meaning and example of «rotation» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/rotation/), each sentence with its dependency tree and frames.