Tuesday, 15 September 2015

Submerged City Reveals Its Secrets

For centuries, scholars dismissed the ancient Egyptian port of Thonis-Heracleion (Thonis to the Egyptians, Heracleion to the Greeks) as nothing more than a myth.

Vanishing beneath the waves of the Mediterranean some 1,200 years ago, the city was once a bustling hub of activity, both commercial and religious. In fact, the ancient port is thought to be the gateway though which all trade from Greece and the Mediterranean entered Egypt.

Thonis-Heracleion may even have been the city that Helen of Troy and Paris, being relentlessly pursued by King Menelaus, sought refuge in during the events that led up to the famous Trojan War of antiquity.



Thonis-Heracleion stood for roughly 1,000 years before its eventual slide into the sea, where it was swallowed whole by sand and mud. To this day nobody knows exactly what caused such a disaster to happen.

Theories range from an Atlantis-like series of natural disasters, to a gradual rise in sea level, which may have caused the sediment beneath the city’s foundations to collapse, but of course, nobody knows for sure.

Thonis-Heracleion was discovered by underwater archaeologist Franck Goddio, following a survey of Egypt’s North coast in 2000. Since then, underwater archaeologists have learned a great deal about the everyday lives of the people living in the city, and they’ve uncovered some truly astounding artefacts into the bargain.

Giant 16-foot statues, beautiful gold coins, large stone slabs bearing ancient writing and the wreckage of 64 seafaring vessels (together with some 700 anchors) are just some of the treasures that have been pulled up from the seafloor. It is thought that these, and other marvellous finds have remained in such good condition due to being protected by sand and sediment and thus, untouched for centuries.

Even though the site has been in the process of excavation for so many years, amazing photos continue to (ahem) flood the web, some of which are genuinely astonishing.

The finds hint that not only was the city an important centre for trade and commerce, it may also have been a site of great spiritual significance as well.

“We are just at the beginning of our research”, says Goddio, "We will probably have to continue working for the next 200 years for Thonis-Heracleion to be fully revealed and understood.” Who knows what sunken treasures the site will yield as the investigation continues?

Wednesday, 9 September 2015

Sepura: Market-leading communications solutions for hazardous environments

Our complete TETRA solutions for hazardous environments provide loud, clear, safe communication in the toughest conditions, and are custom designed to meet the challenges typically found in mining, maritime and oil and gas environments.

When compared to analogue, NXDN, proprietary and GSM radio based systems, TETRA offers increased functionality and, crucially, higher data throughput for telemetry and data applications.

Fully certified to the highest level

The STP8X range is IECEx/ATEX certified - the highest level of classification available for Intrinsically Safe radios. The first IP67, submersible, TETRA Intrinsically-Safe radio on the market, the STP8X handheld radio has a host of unique features:



  • market-leading audio for clear communication even when drilling or excavating


  • large, hi-resolution display: crystal clear in all conditions, including bright sunlight


  • MicroSD image viewer - ideal for looking up hazardous material data


  • extended battery life


  • reduced keypad option for use with gloved hands




A comprehensive range of IECEx/ATEX certified accessories is also available.

The complete solution

We offer a full suite of extensively tested and certified products to complement our STP8X IS range and enable confident working in challenging conditions.

The high performing eXTRAS Solo TETRA base station has been specifically designed to meet the demands of industrial organisations. Offering low power consumption, it can be configured to automatically reduce or shut down RF power output in an emergency situation.

The SICS-NET TETRA dispatcher allows operators to track vehicles and personnel, visualise location via building and street maps, and communicate efficiently through a combination of voice and data. Man-Down and Lone Worker emergency notifications further ensure worker safety in potentially hazardous conditions.

The Message application allows email, SMS and SDS messages to be received on IS radios, removing the risk of workers covertly carrying non-IS devices such as smartphones into hazardous areas.

STProtect, the only TETRA-based integrated lone worker protection and indoor location system on the market, maps to user-supplied building plans, allowing control of access to restricted areas and swift location of staff members - particularly useful in an emergency. Fully scalable, STProtect is also compatible with our Man-Down and Lone Worker solutions, further enhancing user safety.

You can find sepura products at http://www.sepura.com and you can find this original article at yourcommunicationnews.com.