Summary
An Indian Express editorial uses the University of Sheffield's October 2026 reverse-engineering of the Roman Lycurgus Cup's colour-changing glass to argue that the past holds near-magical science worth learning from and that its value lies in verifiable, useful achievement, not in reading myths of flying chariots and magical weapons as proof of a lost technology.
The 4th-century cup appears green in reflected light and red when lit from behind, an effect produced by gold and silver nanoparticles. Researchers derived their recipe from a fragment of Roman dichroic glass. The editorial also points to Roman concrete, whose self-healing hot-mixing method MIT researchers replicated in 2023 and to the Indus Valley Civilisation's town planning and drainage.
The theme connects to Article 51A(h) and the constitutional duty to develop scientific temper.
WHY IT MATTERS FOR UPSC & STATE PCS
The University of Sheffield's recreation of the Lycurgus Cup's dichroic glass has revived debate on how ancient achievements should be valued: as testable knowledge that still teaches or as myth offered as proof of a glorious past.
Standard News
The Useful Past Against the Glorious Past
The Question
When something from the past looks like magic, there are two things we can do with it. We can call it proof of a lost golden age or we can try to work out how it was done. The first gives a moment of pride. The second gives knowledge that keeps paying off. This essay argues that heritage earns lasting pride only when it survives scrutiny.
First Domain: The Material Science of Antiquity
Three objects show what scrutiny does to an ancient achievement.
- The Lycurgus Cup. This 4th-century Roman cup is green in reflected light and red when lit from behind. For centuries that looked like magic. The explanation is gold and silver nanoparticles suspended in the glass. In October 2026, the University of Sheffield reproduced the effect using a recipe derived from a fragment of Roman dichroic glass, in work that began as a public outreach project. Roman glassmakers were doing nanotechnology without having the word for it.
- Roman concrete. Structures such as the Pantheon and the Colosseum have lasted for nearly two thousand years. In 2023, MIT-led research showed why: hot mixing quicklime leaves lime clasts in the concrete and when water enters a crack they react and seal it. Researchers have made experimental mixes that heal themselves.
- Delhi's Iron Pillar. The Gupta-era pillar resists rust. Fringe theories once credited lost or even extraterrestrial technology. R. Balasubramaniam of IIT Kanpur showed that the cause was forge-welded, high-phosphorus iron forming a protective passive film. In each case, investigation didn't make the achievement smaller. It made it more impressive and more useful, because what was once a wonder became a method that can be learned.
Second Domain: Civic Engineering and Public Reason
The same test applies to how a society talks about its past. At Dholavira, a UNESCO World Heritage Site since 2021, Harappan builders sustained a city in an arid landscape with reservoirs and rainwater harvesting.
Indus cities had grid streets and covered drains. These are achievements that a modern city struggling with floods and water shortages can actually learn from. Set against this are stories of flying chariots and magical weapons presented as forgotten science.
They do real harm. A claim that can't be tested can't teach anything and when it fails under questioning, it drags down the real achievements with it, because a listener who is told about mythical aircraft may stop believing in Dholavira too.
The Constitution names the alternative: Article 51A(h) makes developing scientific temper and the spirit of inquiry a duty of every citizen.
Synthesis Put the
two domains side by side and a pattern appears. Every achievement that was tested became something we can inherit: a recipe, a technique, a design. Every claim that refused testing produced only pride and that pride lasts only as long as no one asks a question. Methods can be passed on to the next generation. Glory on its own can't.
Quick Facts
Key numbers & takeaways — revise these first
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Lycurgus Cup: a Roman glass cup from the 4th century CE, about 1,600 years old, held at the British Museum since 1958. 2.
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It appears green in reflected light and red when lit from behind, because of gold and silver nanoparticles in the glass. 3.
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In October 2026, Dr Lisa Hollands of the University of Sheffield reverse-engineered the effect from a recipe derived from a separate fragment of Roman dichroic glass. 4.
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The cup depicts Dionysus and King Lycurgus of the Edoni, a figure who appears in Book 6 of Homer's Iliad. 5.
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In 2023, MIT-led research showed that Roman concrete heals its own cracks because of hot mixing of quicklime, which forms lime clasts. 6.
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The Iron Pillar of Delhi, from the Gupta period under Chandragupta II, resists corrosion because of forge-welded high-phosphorus iron that forms a protective passive film, as shown by R. Balasubramaniam of IIT Kanpur. 7.
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Dholavira became a UNESCO World Heritage Site in 2021 and is known for its reservoirs and rainwater harvesting in an arid setting. 8.
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Article 51A(h) makes it a fundamental duty of every citizen to develop scientific temper, humanism and the spirit of inquiry and reform.
Connect the dots for your UPSC preparation.
Standard news covers the event. Log in to read our comprehensive analysis and uncover the hidden constitutional, structural, and ethical dimensions of this topic:
The full first domain: how the Lycurgus Cup, MIT's 2023 work on Roman concrete and the Iron Pillar studies each turned a wonder into a technique.
The second domain developed in depth: Dholavira's water engineering as civic knowledge and exactly how myth passed off as science undermines real achievement.
The synthesis built from comparing both: why scrutiny is what allows heritage to be inherited and why unexamined glory can't be passed on.
Ready-to-use essay material: examples from three civilisations, the constitutional anchor in Article 51A(h) and a closing argument that can be reused.
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