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Richardson candle

Richardson candle 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 Richardson candle rather than just read about it. In short: The Richardson candle lamp is a unique vertical style of electric streetlamp designed for and installed in Cambridge in the 1950s. Several examples remain in place in the historic heart of Cambridge, on Trumpington Street, Silver Street, King's Parade, Bene't Street, Trinity Street, and St John's Street.

Richardson candle — main illustration
Richardson candle — illustration

Key takeaways

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

Reference excerpt

The Richardson candle lamp is a unique vertical style of electric streetlamp designed for and installed in Cambridge in the 1950s. Several examples remain in place in the historic heart of Cambridge, on Trumpington Street, Silver Street, King's Parade, Bene't Street, Trinity Street, and St John's Street. Many were listed by Historic England at Grade II between 2011 and 2013. According to the listings, "Cambridge is the last city in the UK to retain its own custom-designed lighting stock from the post-war period". The Richardson candle lamp was designed by Sir Albert Richardson and manufactured by the REVO Electrical Company, based in Tipton, West Midlands. The design was based on the REVO Festival candle lamp, a tall tubular column-mounted lamp designed and installed in Birmingham in 1951 as part of the Festival of Britain and which remained in place until the 1990, for example on Colmore Row. After a trial which rejected an off-the-shelf lamp, Richardson was commissioned in 1957, adopting a similar tall and narrow vertical design to echo the perpendicular architectural lines of many historic Gothic Cambridge buildings, but with less decoration than the Festival candle. The vertical tube of the lamp of white translucent perspex is about 78 in (200 cm) long and 15 in (38 cm) in diameter, surrounding three or four 80 watt fluorescent tubes, with a simple cap and base of cast iron coloured bronze. From the 2010s, fluorescent tubes were replaced with halide bulbs. A bespoke order of 120 new electric streetlamps was manufactured by REVO, installed in Cambridge in the late 1950s to replace pre-war gas lamps. There were 56 wall-mounted lamps, mounted with brackets embossed with the word "REVO", and 64 mounted on slim fluted cast iron columns with bronze colouring. Approximately half of them survive. Three examples were stolen in 2024, but two were recovered by police in January 2025.

References

External links Cambridge's famous Revo "Richardson's Candles", lighting-gallery.net Listings on the National Heritage List for England, Historic England Richardson Candle group in St Johns Street and north Trinity Street Richardson Candle wall mounted lamps attached to 16, 19, 24, 27, 35 and 38 Trinity Street Richardson Candle group in Trinity Street including Gonville and Caius College Five wall-mounted Richardson Candles in Kings Parade Four Richardson Candles outside no.s 10, 16, 19 and opposite 19 Trumpington Street Richardson Candle group at St Catharine's College and northern Trumpington Street Richardson Candle group in Trumpington Street including the Fitzwilliam Museum Three Richardson Candle wall-mounted lamps attached to the south side of Queens' College, Silver Street Three Richardson Candle wall-mounted lamps attached to the north side of the Mill Lane Site on Silver Street Richardson Candle street lamp on the south-east corner of Silver Street Two Richardson Candle wall-mounted lamps attached to The Old Guildhall on Wheeler Street Three Richardson Candle wall-mounted lamps attached to the north side of Bene't Street

Illustrations

Richardson candle: Richardson candle lamp on Trumpington Street
Richardson candle lamp on Trumpington Street
Richardson candle illustration
Richardson candle illustration
Richardson candle illustration
Richardson candle illustration

Worked examples

Example 1 — a first encounter with Richardson candle

Start with the simplest possible case. Write down what Richardson candle 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 Richardson candle 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 Richardson candle 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 Richardson candle

In research
Richardson candle 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 Richardson candle 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
Richardson candle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Grade II listed buildings in Cambridge, Street lighting, so understanding it makes those chapters shorter.
In everyday life
Look for Richardson candle 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 Richardson candle in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Richardson candle 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 Richardson candle out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Richardson candle in simple terms?

The Richardson candle lamp is a unique vertical style of electric streetlamp designed for and installed in Cambridge in the 1950s. Several examples remain in place in the historic heart of Cambridge, on Trumpington Street, Silver Street, King's Parade, Bene't Street, Trinity Street, and St John's S…

Why does Richardson candle 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 Richardson candle?

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 Richardson candle.

Tags

  • Grade II listed buildings in Cambridge
  • Street lighting

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