Indian Space Program: News & Discussion - Sept 2016

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Vips
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Vips » 04 Nov 2019 23:59

ISRO Develops Submersible Capsule Capable of Travelling 6,000 Meters Deep for Ocean Mission.

India's ambition to send men to the deep sea in a submersible vehicle appears to be one step closer to fruition with ISRO successfully developing a design for its crew module, a sphere shaped capsule.

"The design for the manned submersible's sphere has been successfully developed by ISRO. Now it has to be certified and then we will go ahead with the fabrication," Secretary, Ministry of Earth Sciences, Madhavan Nair Rajeevan said.

Interacting with journalists on the sidelines of the silver jubilee celebrations of the National Institute of Ocean Technology here, the top official said that designing the sphere (intended to be built using titanium) involved complex technology.

"ISRO has developed the design and it will be sent to an international agency for certification," he said, adding that the Indian space agency has taken up both designing as well as fabrication -at a later stage- of the sphere.

A three member crew can be accommodated in the sphere, one of the key components of the manned submersible vehicle."Work is already on for the deep ocean mission and scientific and technical work has started," he said.

An MoU has already been signed between the ISRO and NIOT on development of the module. NIOT is tasked with aspects like electronics and navigation for the manned submersible.

Also, multiple agencies, including the Goa-based National Centre for Polar and Ocean Research, Centre for Marine Living Resources and Ecology at Kochi and Indian National Centre for Ocean Information Services (Hyderabad) are involved in the initiatives.

The submersible vehicle is expected to travel to a depth of approximately 6,000 metres under the sea for various studies, whereas submarines can reach only about 200 metres.

This initiative is a part of the Deep Ocean Mission.As part of the ambitious Rs 10,000 crore Deep Ocean Mission, India will also study climate change in the deep oceans.

Studying climate change, marine biodiversity and survey for compounds like hydrocarbons and minerals are part of the deep ocean mission.

csaurabh
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby csaurabh » 06 Nov 2019 12:11

A good achievement, but I don't understand what deep sea exploration has to do with space technology?

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Lisa » 06 Nov 2019 13:53

^ Pressure

csaurabh
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby csaurabh » 06 Nov 2019 16:31

Not really, underwater ocean pressures are extremely high whereas space pressure is 0 ( vacuum ).

Lisa
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Lisa » 06 Nov 2019 19:24

You used the word pressure twice in your answer, yes? :D

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Raveen » 07 Nov 2019 20:23

csaurabh wrote:Not really, underwater ocean pressures are extremely high whereas space pressure is 0 ( vacuum ).


The problem is similar - in the space the pressure is within the capsule, and in the ocean, the pressure is on the outside. Either way, in space pressure is trying to get out and under water the pressure is trying to get in. Thought that was pretty obvious.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Sonugn » 07 Nov 2019 23:22

North Korean Hackers Suspected Of Attempt To Breach ISRO In September
Hackers from North Korea are suspected to have been behind an attack on the Indian Space Research Organisation (ISRO) in September when Chandrayaan-2 attempted to soft-land a rover on the moon. ISRO may have also been warned of the cyberattack, cybersecurity consultants said, according to the Financial Times. The connection between the Chandrayaan-2 mission and North Korean hackers is being made weeks after it was reported that Tamil Nadu's Kudankulam Nuclear Power Plant was a victim of a North Korean cyberattack.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Amber G. » 08 Nov 2019 00:46

csaurabh wrote:A good achievement, but I don't understand what deep sea exploration has to do with space technology?

Apart from obvious points like using water (*not* deep sea) to train for pseudo zero gravity there are quite a few technologies which are common (and helpful) in both environments - which are basically hostile and a person has to keep his own environment in small confined space but safe.
Submersibles, remotely operated vehicles (ROVs) have similarities with rovers. (Both need quite a bit of -
intelligence/computer power build into the system and similar navigational skills)
- Diving gears/ space suits share some technologies..
- Inertial guidance systems.
- Air recycling (scrubbing of CO2 etc) , etc..
Some submarines use nuclear power -- and some smaller vehicles/torpedoes uses RTG (Radioisotopes to generate power like space-probes).
(Both are challenging frontiers :)


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