Goblet - Romans Used Nanotechnology

1,600-Year-Old Goblet Shows that the Romans Used Nanotechnology

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The Lycurgus Cup, as it is known due to its depiction of a scene involving King Lycurgus of Thrace, is a 1,600-year-old jade green Roman chalice that changes colour depending on the direction of the light upon it. It baffled scientists ever since the glass chalice was acquired by the British Museum in the 1950s. They could not work out why the cup appeared jade green when lit from the front but blood red when lit from behind.

The mystery was solved in 1990, when researchers in England scrutinized broken fragments under a microscope and discovered that the Roman artisans were nanotechnology pioneers: They had impregnated the glass with particles of silver and gold, ground down until they were as small as 50 nanometres in diameter, less than one-thousandth the size of a grain of table salt.

The work was so precise that there is no way that the resulting effect was an accident. In fact, the exact mixture of the previous metals suggests that the Romans had perfected the use of nanoparticles – “an amazing feat,” according to archaeologist Ian Freestone of University College London. When hit with light, electrons belonging to the metal flecks vibrate in ways that alter the colour depending on the observer’s position.

Now it seems that this technology, once used by the Romans to produce beautiful art, may have many more applications - the super-sensitive technology used by the Romans might help diagnose human disease or pinpoint biohazards at security checkpoints. Gang Logan Liu, an engineer at the University of Illinois at Urbana-Champaign, who has long focused on using nanotechnology to diagnose disease, and his colleagues, realized that this effect offered untapped potential. 

They conducted a study last year in which they created a plastic plate filled with gold or silver nanoparticles, essentially creating an array that was equivalent to the Lycurgus Cup. When they applied different solutions to the plate, such as water, oil, sugar and salt, the colours changed. The proto­type was 100 times more sensitive to altered levels of salt in solution than current commercial sensors using similar techniques. It may one day make its way into handheld devices for detecting pathogens in samples of saliva or urine, or for thwarting terrorists trying to carry dangerous liquids onto airplanes.

This is not the first time that Roman technology has exceeded that of our modern day.  Scientists studying the composition of Roman concrete , submerged under the Mediterranean Sea for the last 2,000 years, discovered that it was superior to modern-day concrete in terms of durability and being less environmentally damaging. The knowledge gained is now being used to improve the concrete we use today. Isn’t it ironic that scientists now turn to the works of our so-called ‘primitive’ ancestors for help in developing new technologies?

By April Holloway

Comments

I've said it before and I'll say it again: we think we're smarter than we are, and we think our ancestors were dumber than they were.

We are actually getting pretty fed up of you saying this. Have you nothing more relevant to say, and just the once only?

Seems pretty important to me, actually. Though I'm glad you live up to your namesake, if only figuratively speaking :oP

Offensive comments in this posting have been deleted.

Moderator

Okay so some scientists say this 1,600-year-old Roman cup is so precise in its technological construction that the resulting chameleon effect (my description not theirs) could not have occurred by accident. And yet, some scientists claim the universe, the human body, and life itself, despite the precision inherent in the existence of each, came about by some series of random accidents?! Seems to me that scientists exhibit their own chameleon effect when depicting their hypotheses as fact.

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