This perhaps should come with the warning, ‘Let the reader who can, understand.’

(Why a *hazelnut* forest? LHC? Who was the Sybil of Cumae?)

Small clues: LHC is the Large Hadron Collider, the largest machine ever built on Earth (27 kilometres across) with which many new particles, some expected, some not, have been discovered. Other clues are hidden in the tags, but not in the correct order (WordPress shifts them into alphabetical order).

Some time in April (I promise!) I shall write an **explanation**. I also promise (don’t look at my crossed fingers) that the explanation will not itself need explaining.

**λ = 2πħ/p**

How small is the forest?

How tiny its leaves?

Where the pattern of branches

tosses and weaves;

and the canopy sways,

and the summer winds moan,

until shortening days

say summer is gone.

Halfway in the forest

its deepest heart;

where calling birds fly

to its farthest part,

and the leaves’ rustling sigh

gives place to the sky,

and the height of the trees,

and the birds flying free,

and the tiniest leaves,

are the forest to me.

**How Small is The Forest?**

How far is it from constancy

to Heisenberg’s uncertainty?

A tiny length defines

a volume that we find:

the smallest we can know.

A fundamental distance

that we call Planck’s length (L)

shows there is a thickness

we cannot go below.

A circle has a volume just like a carousel

the volume of a circle is pi times r squared L,

(by this we come to see

there is no ‘true’ 2D

and a circle without volume,

is an anomaly).

**A Circle With a Volume**

This volume hides a mystery.

How small can it be?

How can it be measured,

a space too small to see

by eye or LHC?

The smallest space we cannot see:

the rings inside, the rings inside,

the rings inside a tree,

is found from four-thirds pi

times its depth to power of three.

This volume, this conundrum,

too veiled for us to see,

a mystery its diameter,

its radius an enigma,

the Sybil of Cumae,

time in eternity.

Radius is half of width,

we know that very well

but half a fundamental

is a word we cannot spell.

Diameter equals radius,

it flickers to and fro,

in the tiniest of instants,

the shortest we can know.

*Things fall apart, the centre cannot hold.*

* Fission and expansion, a cosmos to unfold.*

A whole that ever seeks

the shimmer and the chime,

Infinite from finite

in the infinite-finite rhyme:

the Word that ever speaks

at the birth and death of time.