The remarkable electromagnetic properties of the Great Pyramid of Giza could soon inspire nanoparticle designs for highly-efficient sensors and solar cells.

Scientists have discovered the famous pyramid concentrates electric and magnetic energy into its internal chambers and below its base, creating pockets of higher energy.

If this concentrating effect is able to be recreated on a nanoscale size, it could lead to a wave of new, more efficient sensors and solar cells, the researchers claim.

While the 481-foot pyramid constructed thousands of years ago for Pharaoh Khufu has long drawn intrigue for its purported mythical qualities, the study is among a growing body of research that attempts to finally get to the bottom of its physical properties.

‘Egyptian pyramids have always attracted great attention,’ says Dr Andrey Evlyukhin, scientific supervisor and coordinator of the research.

‘We as scientists were interested in them as well, so we decided to look at the Great Pyramid as a particle dissipating radio waves resonantly.’

The international research team looked into the relationship between the shape of the Great Pyramid of Giza and its ability to focus electromagnetic energy.

To do this, the team led by ITMO University in Saint Petersburg, Russia, created a model of the pyriadmid, one of the seven wonders of the ancient world, to accurately measure it electromagnetic response.

The researchers used the model to see how wave energy is scattered or absorbed by the pyramid. They tested the interactions with waves of resonant length, ranging from 200 to 600 metres (656ft to 1,968ft).

However, due to the lack of reliable information about the properties of the pyramid, the team was forced to fill-in the blanks for some factors of their model.

‘We had to use some assumptions,’ Evlyukhin admitted. ‘For example, we assumed that there are no unknown cavities inside, and the building material with the properties of an ordinary limestone is evenly distributed in and out of the pyramid.

‘With these assumptions made, we obtained interesting results that can find important practical applications.’

Scientists used multipole analysis – a method widely-used in physics to study the interaction between a complex object and electromagnetic field – to reveal how the pyramid concentrates electromagnetic energy into in its underground chambers.

This includes the two chambers believed to have contained the remains of Pharaoh Khufu and his wife, as well as the third unfinished chamber buried beneath the base.

The Ancient Egyptians that built the pyramids more than 4,400 years ago were not aware of this quirk of design.

However, researchers now believe the relationship between the design of the pyramid and its ability to focus wave energy through to its core could play a hugely-important for nanoparticle research in the future.

When considering the pyramid on a substrate – such as the limestone plateau – the researchers say it focuses the energy through the empty spaces to the substrate.

‘In the case of the Pyramid on the substrate, at the shorter wavelengths, the electromagnetic energy accumulates in the chambers providing local spectral maxima for electric and magnetic fields,’ the researchers wrote in the study.

‘It is shown that basically the Pyramid scatters the electromagnetic waves and focuses them in to the substrate region.’

Although this research seems unconventional, modern physical approaches have been previously used to study the Great Pyramid, and led to a discovery of a completely new structure,’ said Antonija Grubisic-Cabo, a physicist from Monash University who was not involved in the research.

‘As this research is completely theoretical, it is difficult to say what we can expect it to lead to, or if it is even possible to do this in real life.’

However, the researchers behind the study are confident that the manner in which electromagnetic energy distribute in the pyramid could help scientists create efficient nanoparticle designs in the future.

That depends on whether the researchers are able to recreate the concentrating effect observed in the Great Pyramid of Giza on a nanoscale size.

Dr Polina Kapitainova, of the Faculty of Physics and Technology of ITMO University, said: ‘Choosing a material with suitable electromagnetic properties, we can obtain pyramidal nanoparticles with a promise for practical application in nanosensors and effective solar cells.’

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