Beyond the eye

Virus vs Pollen grain

What are they, and what does the difference actually look like?

Two things. One honest scale.

Meet the pair

What these two things are

Virus

A virus is an infectious particle containing genetic material inside a protein coat, sometimes with an outer envelope.

100 nmCharacteristic size

Pollen grain

A pollen grain carries the male reproductive cells of a seed-producing plant.

30 µmCharacteristic size

Pollen grain has about 300 times the characteristic size of Virus.

True scale
ENLARGED ×104
01
Virus100 nmCharacteristic size
02
Pollen grain30 µmCharacteristic size
Inset ×104Virus is too small to see clearly at this scale. The ring marks its position; only the inset is enlarged.
Measurements, assumptions & sources +

Virus

A chosen 100 nm viral particle, including the approximate envelope. Viruses vary greatly.

University of Utah — Cell size and scale

The marked characteristic size is calibrated. Unmeasured illustration details are representative.

Pollen grain

A chosen 30 µm pollen grain. Plant species produce very different grains.

University of Utah — Cell size and scale

The marked characteristic size is calibrated. Unmeasured illustration details are representative.

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Measurement details

Why these numbers?

The visual compares characteristic size with characteristic size. The records below preserve each value’s basis and caveats.

Virus

100 nm

Characteristic size · representative

A chosen 100 nm viral particle, including the approximate envelope. Viruses vary greatly.

Pollen grain

30 µm

Characteristic size · representative

A chosen 30 µm pollen grain. Plant species produce very different grains.

Comparing
Characteristic size ↔ Characteristic size
Relative size
Pollen grain is larger on this measurement by a factor of about 300.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

  • Virus is labelled representative; treat the displayed value as a comparison anchor rather than false precision.
  • Pollen grain is labelled representative; treat the displayed value as a comparison anchor rather than false precision.

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