Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

International Prototype of the Kilogram: Measurement, Art & Standards

The International Prototype of the Kilogram (referred to by metrologists as the IPK or Le Grand K; sometimes called the ur-kilogram, or urkilogram, particularly by German-language authors writing in English:30) is an object whose mass was used to define the kilogram from 1889, when it replaced the Kilogramme des Archives, until 2019, when it was replaced…

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

International Prototype of the Kilogram topic overview

The analysis highlights Measurement, Art and Standards as prominent areas in the source structure around International Prototype of the Kilogram.

Related topics
132
Source areas
5
Connected nodes
137
Extracted relationships
3
Related term clusters
18
Bridge connections
137

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Copies of the IPK · 45 topics
Overview · 42 topics
Dependency of the SI on the IPK · 24 topics
Stability of the IPK · 16 topics
Creation · 5 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Start with your topic. Discover where to go next.

Explore different angles and find fresh ideas to shape your next piece of content.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Creation

Copies of the IPK

Stability of the IPK

Dependency of the SI on the IPK

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How International Prototype of the Kilogram connects Entity context

See recurring relationship patterns around International Prototype of the Kilogram before inspecting the individual extracted relationships.

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

ipk mass kilogram si prototypes μg copies defined national stored used metre standards one units 10 bipm verification replicas newton

International Prototype of the Kilogram relationships Subject–Predicate–Object triples

TTTA extracted 3 structured relationships around International Prototype of the Kilogram. Examples in this analysis include the US's check standard → instance of → Quite unlike transient variations. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
the US's check standardinstance ofQuite unlike transient variations0.80text
K4instance ofQuite unlike transient variations0.80text
has persistently declined in mass relative to the IPKinstance ofQuite unlike transient variations0.80text

Related concept clusters Related term clusters

The concept neighborhoods around International Prototype of the Kilogram bring nearby vocabulary together. In this analysis, examples include Ipk, National and Prototype. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • International Prototype of the Kilogram
    • Ipk
    • National
    • Prototype
    • Mass
    • Replicas
    • Bipm's
    • Bipm
    • Used
    • One
    • Copies
    • Μg
    • Newton
  • international prototype of the kilogram
    • Ipk
    • One
    • National
    • Prototype
    • Mass
    • Replicas
    • Si
    • Bipm's
    • Bipm
    • Made
    • Practical
    • Used
  • kilogram
    • Ipk
    • One
    • Prototype
    • Mass
    • Replicas
    • Si
    • Made
    • Practical
    • Μg
    • Standards
    • Used
    • National
  • new definition of the kilogram
    • Ipk
    • One
    • Prototype
    • Mass
    • Replicas
    • Si
    • Made
    • Practical
    • Μg
    • Standards
    • Used
    • National
  • copies of the ipk
    • Mass
    • Kilogram
    • Bipm's
    • Official
    • Vault
    • Stored
    • Replicas
    • Μg
    • National
    • Standards
    • Used
    • Si
  • stability of the ipk
    • Mass
    • Kilogram
    • Replicas
    • Μg
    • Stored
    • Standards
    • Used
    • Si
    • National
    • Copies
    • Made
    • Years
  • dependency of the si on the ipk
    • Mass
    • Units
    • Defined
    • Unit
    • Kilogram
    • Metre
    • Replicas
    • Kg
    • Μg
    • One
    • Stored
    • Many
  • si base units
    • Units
    • Defined
    • Unit
    • Metre
    • Would
    • Kg
    • One
    • Many
    • Newton
    • Practical
    • National
    • Bipm

Connections between topic areas Semantic bridges

For International Prototype of the Kilogram, one of the stronger structural bridges in this analysis connects International Prototype of the Kilogram with Copies of the IPK. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
International Prototype of the Kilogram — Copies of the IPK · splits 92 ⟂ 46
International Prototype of the Kilogram — Overview · splits 95 ⟂ 43
International Prototype of the Kilogram — Dependency of the SI on the IPK · splits 113 ⟂ 25
International Prototype of the Kilogram — Stability of the IPK · splits 121 ⟂ 17
International Prototype of the Kilogram — Creation · splits 132 ⟂ 6

Map overview Semantic statistics

International Prototype of the Kilogram

Nodes138
Edges137
Triples3
Avg. degree1.99
Density0.014493
Components1

Source & methodology

TTTA analyzes the structure around International Prototype of the Kilogram to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Measurement, Art & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — International Prototype of the Kilogram · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.

Monitor your Domain Rating with FrogDR