Also known as Adam’s bridge, Ram Setu is a 48-km long bridge-like structure between India and Sri Lanka.
It finds mention in the Ramayana but little about its formation is known or proven, scientifically.
The National Institute of Oceanography (NIO) will undertake a three-year
scientific project.
The idea is to see whether Ram Setu is a man-made structure or not.
The most important aspect of the project is to establish its age, scientifically.
The explorers will apply a number of scientific techniques while attempting to date the Ram Setu, study its
material composition, outline the sub-surface structure along with attempting to excavate remnants or artefacts, if any, from the site.
Once it is known, the information can be verified and co-related with its mention in the Ramayana and similar scriptures.
How is the project planned?
An initial survey will make use of underwater photographs to check if any habitation remains inundated in the area. A geophysical survey will be performed to understand the structure.
Over the years, several kinds of depositions, including sand, have
covered the actual structure. Initially, only physical observation, and no drilling, will be done.
NIO operates two oceanographic vessels – RV Sindhu Sankalp (ability to go up to and remain 56 metres underwater) and RV Sindhu Sadhana (ability to go up to and remain 80 metres
underwater).
For collecting core samples at greater depths and for bathymetry purposes, Sindhu Sadhana will be deployed for the Ram Setu project.
Two of the planned tests:
Side-scan SONAR— Will provide bathymetry which is similar to studying the topography of a structure on land. Soundwaves signals will be sent to the structure which will provide an outline of the physical structure of the Ram Setu.
Silo seismic survey– Mild earthquake-like tremor shocks will be sent at shallow depths close to the structure. These energized shockwaves are capable of penetrating into the structure. The reflected or refracted signals will be captured by instruments that will provide
sub-surface structure.Significance of such exploration:
India has a vast coastline of over 7,500 kilometres.
Oceans are a treasure trove of the past records — climate, evolutionary changes of the underwater fauna, coastal lives, habitations, settlements and civilizations.
Of these, the sea-level changes remain the most significant of all with respect to climate studies.
History has records of sailors who set out on unknown voyages to later discover new lands and islands.
They ventured into deep seas even before the advent of the
Global Positioning System (GPS).
Using such underwater exploration studies, scientists say that it is possible to trace numerous ship-wreckages and remains from the past.
Studies of ship wreckage, artefacts or remains could reveal a lot of information

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More from @Ugrabhatah

8 Apr
Ramsetu took 5 days to build by 10 million monkeys under the architects Neel and Nal. The age and structure of Ramsetu depict that it is around 1.7 million years old. It is believed that Ramsetu is made up of limestone shoals. The size of the bridge is 30km long and 3km wide.
The Ramsetu Bridge begins from Dhanushkodi tip of India’s Pamban Island and ends at Srilanka Mannar Island. The sea in this area is very deep.The role of Nal appeared here, on his part, he initiated a monumental bridge in the middle of the ocean.
Some monkeys were holding poles and other’s collected material. The team of Rama worked faster as there were hundreds of monkey’s who brought logs, mountains which helped in the making of a bridge .On 1st day 14 yojanas of a bridge were constructed and on 2nd day 20 yojanas of a
Read 11 tweets
8 Apr
Known for a famous Shakti Pitha of Odisha, the
Bhagabati temple of Banapur in the district of
Khurda is situated nearly 100 km away from the
state capital Bhubaneswar. Many people used to
throng the shrine for the fulfillment of their
cherished wishes and to seek blessings from
the deity. They are amazed to see the magical prowess
of the deity in realizing their dreams come true.
They are also no less amazed to find a strange
piece of stone floating in a tank of water in the
Goddess Lakshmi temple situated within the same
premises.
It was believed that the Banapur stone
might be one of such Ram Setu stones.On close examination of the stone of
Banapur, it was found to be porous and
punctuated by numerous holes occupied by air.
Hence, the Volume of the stone is greatly
increased compared to its Mass.
Read 14 tweets

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