Motion and speed

Tree trunk radial growth

Tree trunk radial growth refers to the outward expansion of a tree's trunk as new layers of wood are added beneath the bark.

How big is it?

1 × 10⁻¹⁰ m/s

Speed · approximate
Typical recorded range: 1 × 10⁻¹¹ m/s to 1 × 10⁻⁹ m/s.

Scale illustration of Tree trunk radial growth, calibrated to its speed measurement.
The marked speed represents 1 × 10⁻¹⁰ m/s.

A little perspective

About 3.33 times the speed of Stalactite growth front.

Stalactite growth front: A stalactite growth front is the advancing tip of a stalactite, where mineral deposits accumulate as water drips in caves.

Equal time
DISTANCE IN ONE SECOND100 pm in 1 s30 pm in 1 s
01
Tree trunk radial growth1 × 10⁻¹⁰ m/sSpeed
02
Stalactite growth front3 × 10⁻¹¹ m/sSpeed
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.
Measurements, assumptions & sources +

Tree trunk radial growth

A curated tree trunk radial growth comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

Defined examples — our methodology

The marked speed is calibrated. Unmeasured illustration details are representative.

Stalactite growth front

A curated stalactite growth front comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

Defined examples — our methodology

The marked speed is calibrated. Unmeasured illustration details are representative.

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Why this measurement?

Why we use 1 × 10⁻¹⁰ m/s

For comparison, this page uses speed. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 1 × 10⁻¹¹ m/s to 1 × 10⁻⁹ m/s.

A curated tree trunk radial growth comparison anchor. The representative value and any stated range preserve the backlog measurement convention; operating or experimental conditions can change real observations.

The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →

Explore motion and speed →

Recorded properties

Tree trunk radial growth dimensions and measurements

PropertySelected valueRecorded rangeBasis
1 × 10⁻¹⁰ m/s1 × 10⁻¹¹ m/s to 1 × 10⁻⁹ m/sapproximate

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These links use compatible speed records, ordered around the selected value.

Sources and method

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The source records and measurement method remain available for inspection.

Read the measurement and artwork methodology →

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