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Lego

Lego is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Lego rather than just read about it. In short: Lego ( , LEG-oh; Danish: [ˈle̝ːko]) is a brand of plastic construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark. Lego consists of variously coloured interlocking plastic bricks made of acrylonitrile butadiene styrene (ABS) that accompany an array of gears, figurines called minifigures, and various other parts.

Lego — main illustration
Lego — illustration

Key takeaways

  • Lego belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Lego to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Lego from memory before moving on to harder problems.

Reference excerpt

Lego ( , LEG-oh; Danish: [ˈle̝ːko]) is a brand of plastic construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark. Lego consists of variously coloured interlocking plastic bricks made of acrylonitrile butadiene styrene (ABS) that accompany an array of gears, figurines called minifigures, and various other parts. Its pieces can be assembled and connected in many ways to construct objects, including vehicles, buildings, and working robots. Assembled Lego models can be taken apart, and their pieces can be reused to create new constructions. Inspired by the self-locking bricks invented by English toymaker Hilary Page in 1939 which were produced by his company Kiddicraft, the Lego Group began manufacturing the interlocking toy bricks in 1949. Moulding is done in Denmark, Hungary, Mexico, China, Vietnam and the United States. Brick decorations and packaging are done at plants in the former three countries and in the Czech Republic. Annual production of the bricks averages approximately 36 billion, or about 1140 elements per second. One of Europe's biggest companies, Lego is the largest toy manufacturer in the world by sales. As of July 2015, 600 billion Lego parts had been produced. Lego maintains a large fan community based around building competitions and custom creations, and a range of films, games, and ten Legoland amusement parks have been developed under the brand.

History

The Lego Group began in the workshop of Ole Kirk Christiansen (1891–1958), a carpenter from Billund, Denmark, who began making wooden toys in 1932. In 1934, his company came to be called "Lego", derived from the Danish phrase leg godt [lɑjˀ ˈkʌt], which means 'play well'. In 1947, Lego expanded to begin producing plastic toys. In 1949, the business began producing an early version of the now familiar interlocking bricks, calling them "Automatic Binding Bricks". These bricks were based on the Kiddicraft Self-Locking Bricks, invented by Hilary Page in 1939 and patented in the United Kingdom in 1940 before being displayed at the 1947 Earl's Court Toy Fair. Lego had received a sample of the Kiddicraft bricks from the supplier of an injection-moulding machine produced in Windsor, England, that it had purchased. The bricks, originally manufactured from cellulose acetate, were a development of the traditional stackable wooden blocks of the time. In 1981, Lego reached an out-of-court settlement with Page's estate, reportedly for around £45,000, for continued use of the brick design; this did not include the Kiddicraft trademark, which was later sold separately to Fisher-Price.

The Lego Group's motto, "only the best is good enough" (Danish: det bedste er ikke for godt, literally "the best isn't excessively good") was created in 1936. Christiansen created the motto, still used today, to encourage his employees never to skimp on quality, a value he believed in strongly. By 1951, plastic toys accounted for half of the company's output, even though the Danish trade magazine Legetøjs-Tidende ("Toy Times"), visiting the Lego factory in Billund in the early 1950s, wrote that plastic would never be able to replace traditional wooden toys. Although a common sentiment, Lego toys seem to have become a significant exception to the dislike of plastic in children's toys, due in part to the high standards set by Ole Kirk.

By 1954, Christiansen's son, Godtfred, had become the junior managing director of the Lego Group. It was his conversation with an overseas buyer that led to the idea of a toy system. Godtfred saw the immense potential in Lego bricks to become a system for creative play, but the bricks still had some problems from a technical standpoint: Their locking ability was still limited, and they were not yet versatile. In 1958, the modern brick design was developed; ABS subsequently replaced cellulose acetate as the manufacturing material five years later. A patent application for the modern Lego brick design was filed in Denmark on 28 January 1958 and in various other countries in the subsequent few years.

The Lego Group's Duplo product line was introduced in 1969 and became a range of blocks whose lengths measure twice the width, height, and depth of standard Lego blocks and are aimed towards younger children. In 1978, Lego produced the first minifigures, which have since become a staple in most sets. In 1997, more than five million Lego pieces were swept into the sea when a wave hit a cargo ship off the coast of Cornwall, England. Pieces have washed up over the ensuing decades, attracting attention from news outlets and social media. In May 2011, Space Shuttle Endeavour mission STS-134 brought 13 Lego kits to the International Space Station, where astronauts built models to see how they would react in microgravity, as a part of the Lego Bricks in Space program. In May 2013, the largest model ever created, made of over 5 million bricks, was displayed in New York City: a one-to-one scale model of a Star Wars X-wing fighter. Other record breakers include a 34-metre (112 ft) tower and a 4 km (2.5 mi) railway. In February 2015, marketing consulting company Brand Finance ranked Lego as the "world's most powerful brand", overtaking Ferrari. While Lego has generally been considered a children's toy, there have also been adult fans of the toys. In 2020, Lego introduced sets aged 18+, generally some of their more expensive and difficult-to-assemble sets based on real world or fictional objects, such as the Concorde or Rivendell. The timing of these sets favourably aligned with the COVID-19 pandemic, with many adults purchasing these sets to work on during various lockdown periods. Popularity within adults was further pushed by the release of The Lego Movie and the reality series Lego Masters. By 2024, nearly 15% of the sets released in the U.S. were aimed at adult builders. In May 2025 Lego announced that it was planning to move its London headquarters from Farringdon to 76 South Bank, in 2027.

… excerpt ends here. Continue reading the full article.

Illustrations

Lego illustration
Lego: Hilary Fisher Page's Interlocking Building Cubes by Kiddicraft, 1939
Hilary Fisher Page's Interlocking Building Cubes by Kiddicraft, 1939
Lego: The Lego House, headquarters of the Lego Group in Billund, Denmark
The Lego House, headquarters of the Lego Group in Billund, Denmark
Lego: Boy from the UK playing with Lego in 1957. First sold in Denmark, the company expanded its sales across Europe in the 1950s, before expanding outside the continent from the 1960s.
Boy from the UK playing with Lego in 1957. First sold in Denmark, the company expanded its sales across Europe in the 1950s, before expanding outside the continent from the 1960s.
Lego: Lego bricks
Lego bricks

Worked examples

Example 1 — a first encounter with Lego

Start with the simplest possible case. Write down what Lego claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Lego before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Lego ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Lego

In research
Lego appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Lego in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Lego is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1949 establishments in Denmark, Construction toys, Danish Culture Canon, so understanding it makes those chapters shorter.
In everyday life
Look for Lego outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Lego in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Lego means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Lego out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lego in simple terms?

Lego ( , LEG-oh; Danish: [ˈle̝ːko]) is a brand of plastic construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark. Lego consists of variously coloured interlocking plastic bricks made of acrylonitrile butadiene styrene (ABS) that accompany an array of ge…

Why does Lego matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Lego?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Lego.

Tags

  • 1949 establishments in Denmark
  • Construction toys
  • Danish Culture Canon
  • Danish brands
  • Danish design
  • Danish inventions
  • Lego
  • Products introduced in 1949
  • Toy brands
  • Toy companies of Denmark
  • Toy train manufacturers

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