De Beers shines light on budding jewellery designers

Diamond giant De Beers will this year conduct its bi-annual Shining Light Awards jewellery design competition. De Beers beneficiation manager Kagiso Fredericks told Rough & Polished's Mathew Nyaungwa in an exclusive interview they set aside 4.5 carats...

22 july 2024

DiaMondaine Diamantaires Club mulls diamond safari tours in southern Africa

DiaMondaine Diamantaires Club (DDC) is set to organise diamond safari tours in southern Africa, home to major diamond-producing countries. DDC founder Agnes Abdulahu told Rough&Polished’s Mathew Nyaungwa that the launch of the first diamond safari...

15 july 2024

Vladislav Zhdanov: Questions of efficiency and investment potential of diamond mining versus diamond growing pique keen interest

Vladislav Zhdanov is Professor at the National Research University Higher School of Economics (HSE). He told Rough&Polished about new researches into the effectiveness of diamond production methods.

02 july 2024

Why it's expensive to cut and polish diamonds in Africa? ADMA president António Oliveira has the answer

The African Diamond Manufacturers Association (ADMA) president António Oliveira told Rough&Polished’s Mathew Nyaungwa in an exclusive interview that the lack of a robust infrastructure in Africa fails to accelerate and encourage manufacturing...

24 june 2024

Edahn Golan: IPO feasible but not Anglo’s preferred way to sell De Beers

Edahn Golan, owner of the eponymous Edahn Golan Diamond Research and Data, told Rough&Polished's Mathew Nyaungwa in an exclusive interview that while an IPO of De Beers is “feasible,"  he does not think this is a route Anglo American...

17 june 2024

Abnormally high internal waves detected in the Russian Arctic

05 february 2024

For the first time, a group of Russian ocean scientists discovered abnormally high internal waves in the Russian sector of the Arctic.

The researchers carried out measurements in the Kara Gate Strait connecting the Barents and the Kara Seas. It was revealed that when sea currents interact with the uneven bottom of the strait, abnormally powerful internal waves of up to 40 meters high regularly occur, scientificrussia.ru writes.

The discovery of such powerful internal waves can be useful in solving a number of applied tasks related to the exploration and production of oil and gas in the Arctic, the laying of pipelines and underwater communications, and ensuring the safety of navigation along the Northern Sea Route.

Usually, powerful internal waves have a height of more than 10 meters, but there are cases when their height in the Arctic reached the size of a multi–storey building at 40-50 meters. Such high waves can affect the transmission of acoustic signals underwater, damage underwater structures, crack sea ice and lead to the formation of ice holes.

Researchers used satellite data, drones and special temperature sensors to register high internal waves.

Alex Shishlo for Rough&Polished