What this measurement describes
Width measures a stated cross-section and may differ from length, height or diameter.
Molecular · Genetics
LANDMARK 007 / 121
DNA double helix
≈2 nm wideThe molecular ladder that carries genetic instructions is only a few atoms wide.
WonderThe DNA in one human cell can stretch close to two metres when unpacked.
10-9metres
Scale context
One coordinate on a continuous universe.
10-8.70 mDNA helixMolecular realm
Wonder · Explore · Deep
The number keeps its meaning.
How certain is the boundary?
This is an observed measurement. The displayed precision follows the cited reference and should not be read as infinite accuracy.
What the engine actually divides
Vastoscope compares the SI value in metres for this double-helix width. A ratio is mathematically valid as a linear span, while the interface identifies when the two selected definitions differ.
Familiar scale bridges
Give the number
something to stand beside.
These anchors are selected by logarithmic proximity from familiar human, engineered, planetary and cosmic references.
Familiar · PeopleDNA helix ↔ Human875.00 million ×A representative adult human — the central reference point for moving both inward and outward.
Monumental · MachinesDNA helix ↔ School bus6.10 billion ×A full-size school bus, useful as a measuring stick for dinosaurs, whales and buildings.
Monumental · EarthDNA helix ↔ Mount Everest4,424.43 billion ×Earth’s highest mountain above mean sea level, shown as vertical elevation.
Evidence trail
Where this scale comes from.
Vastoscope keeps the displayed number separate from its measurement type and certainty. Representative and model-dependent values are intentionally labelled instead of presented as exact edges.
Nearby on the logarithmic rail
Continue through scale.
Molecular · Atomic physicsHydrogen atom≈106 pmThe simplest atom: one proton surrounded by a quantum probability cloud for one electron.
Molecular · Molecular biologyGlucose molecule≈1 nmA compact sugar molecule used by cells as a readily available source of chemical energy.
Cellular · ImmunologyAntibody≈10 nmA Y-shaped protein that recognizes molecular features with extraordinary precision.
Cellular · Cell biologyRibosome≈25 nmA molecular factory that reads genetic instructions and assembles proteins amino acid by amino acid.
Next signal
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Continue by scientific relationship, narrative journey or a deliberately distant scale jump.