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# pinhole

«pinhole» in Mova's school dictionary: **a very small hole, like one made by a pin** — its meaning for a pupil, its sense in the lessons and examples, with 2 sentences of Mova's corpora that use it.

### part of speech

noun (a pinhole, pinholes); adjective (pinhole camera)

### meaning for a pupil

1) A pinhole is a very small hole, like one made by a pin. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#m1)

2) A pinhole camera is a simple camera made from a box with a tiny hole, and no lens, that makes an upside-down picture inside. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#m2)

### sense in the lessons

In science lessons about light, pupils make a pinhole camera from a box or tube with tracing paper at the back: light travels in straight lines through the pinhole, so the picture appears upside down. During a solar eclipse, people use a pinhole viewer to look at the sun safely, never looking straight at it. Phrases: «pinhole camera», «pinhole viewer».

### examples

- We made a pinhole camera from a shoebox. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x1)
- The picture in the pinhole camera was upside down. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x2)
- Light shone through a pinhole in the curtain. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x3)
- Use a pinhole viewer to watch the eclipse safely. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x4)
- A pinhole in the tyre let the air out slowly. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x5)
- Light travels in straight lines through the pinhole. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/pinhole/#x6)

### note

Countable; one word. Safety: never look at the sun directly, not even through a pinhole; a pinhole viewer projects the image onto paper. The picture is upside down because light rays cross at the hole.

### In the corpora

- [An eclipse of the Sun is watched only with special eclipse glasses or a pinhole projector.](https://md.mova.elamur.ai/free/en/corpora/school/physics/22-lenses-and-eyes/11/)
- [Never look at a solar eclipse with bare eyes or ordinary sunglasses; use proper eclipse glasses or a pinhole projector.](https://md.mova.elamur.ai/free/en/corpora/school/space/7-phases-eclipses-and-tides/4/)

### Trees and pragmatics

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