Megalithic Culture | Current Affairs | Vision IAS
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    Posted 22 Nov 2024

    8 min read

    Megalithic Culture

    An archaeological discovery attributed to megalithic period has been made in Kerala’s Kasaragod, featuring rock-cut carvings created with iron tools. 

    • These carvings include depictions of human figures representing both children and adults.

    About Megalithic Culture

    • Period: Belongs to Iron Age (1500 BC–500 BC).
    • Megaliths: Refer to burials made of large stones in graveyards. 
      • TypesPolylithic (Dolmen, Cairn, Cromlekh, Cist) and Monolithic (Menhir).
    • Sites: Adichanallur, Kodumanal (Tamilnadu); Thrissur and Kunnattur (Kerala) etc.
    • Characteristics: Agricultural economy; pastoralism; metal, wood & ceramic industry & craft, religious practices - Animism.
    • Tags :
    • Megalithic Period
    • Megaliths
    • Polylithic
    • Monolithic

    Implementation Agreement for Gaganyaan

    ISRO and Australian Space Agency (ASA) have signed an Implementation Agreement (IA) to enhance collaboration on space activities between India and Australia.

    About IA

    • It enables cooperation between both space agencies on crew and crew module recovery for Gaganyaan missions.
    • It supports Australia's role in search and rescue operations and crew module recovery, particularly if an emergency abort during the ascent phase occurs near Australian waters. 

    About Gaganyaan mission

    • It aims to demonstrate India's human spaceflight capability by sending a three-member crew to Low Earth Orbit for three days and safely returning them to Earth.
    • Tags :
    • Gaganyaan
    • Implementation Agreement for Gaganyaan

    ASEAN Defence Ministers’ Meeting-Plus (ADDM- Plus)

    Defense minister of India met the US Secretary of Defense on the sidelines of 11th ADMM-Plus at Vientiane, Lao PDR.

    About ADDM-Plus

    • It comprises of 10 ASEAN Member States and 8 Dialogue Partners (Australia, China, India, Japan, New Zealand, Republic of Korea, Russia and US). 
    • Inaugural ADMM-Plus was convened in Hanoi, Vietnam in 2010.
    • Since 2017, ADMM-Plus Ministers meet annually to further dialogue and cooperation amongst ASEAN and Plus Countries.
    • Its purpose is to strengthen security and defence cooperation for maintenance of peace, stability, and development in the region.
    • Focuses on seven areas of practical cooperation: Maritime Security, Counter-terrorism, HADR, Peacekeeping Operations, Military Medicine, Humanitarian Mine Action and Cyber Security. 
    • Tags :
    • ASEAN
    • ASEAN Defence Ministers’ Meeting-Plus

    Piezoresponsive Nanomaterials (PN)

    Indian researchers have developed peptide (a short chain of amino acids)-based adjustable piezoresponsive nanomaterials that can help in energy harvesting and biodevice applications.

    Piezoresponsive Nanomaterials (PN)

    • PN can change their physical properties, like electrical resistance, when subjected to mechanical stress.
      • This unique ability helps to generate an electric charge when subjected to pressure.
    •  Due to this ability, these materials are typically used in applications like sensors, actuators, and energy harvesting devices.
    • When they are composed of nanostructured materials, it enhances their sensitivity and responsiveness to external forces.
    • Tags :
    • Piezoelectric Material
    • Amino acids

    International Criminal Court (ICC)

    Recently, ICC issued an arrest warrant against Israeli Prime Minister, Hamas leader for their alleged war crimes in the Gaza conflict.

    About ICC:

    • First international permanent court established to investigate, prosecute individuals accused of committing war crime, genocide, crime against humanity and crime of aggression
    • Independent judicial body, not part of the UN. However, UN Security Council can refer certain situations to the Prosecutor of the ICC
    • Founding treaty: Rome Statute, came into force in 2002 (negotiated within the UN framework).
    • Members: 124 members.
      • India, Israel, the US, Russia and China are not members
    • Tags :
    • Rome Statute
    • International Criminal Court (ICC)
    • International Permanent Court

    Phytoplankton bloom

    Recently, scientists found evidence that desertification leads to large amounts of nutrient-rich dust landing in the Indian-Ocean, south east of Madagascar, causing phytoplankton (Algae) bloom.

    Phytoplanktons:

    • Microscopic, single-celled plants that live in the ocean.
    • They regulate the carbon sink and food chain (primary producers) in the ocean.

    About Phytoplankton bloom:

    • It’s the exponential growth of phytoplankton.
    • Favorable conditions: Warm Sea surface temperature, calm waters, availability of excessive nutrients etc.
    • Impact: Produce biotoxins that can bioaccumulate in the marine food web; depletes the oxygen level in the ocean creating ‘Dead Zone’. 
    • Tags :
    • Phytoplankton Bloom
    • Algae Bloom
    • Carbon Sink
    • Aquatic Food Chain

    Bharat NCX 2024

    National Security Council Secretariat (NSCS) in collaboration with Rashtriya Raksha University (RRU) inaugurated Bharat National Cyber Security Exercise (Bharat NCX 2024).

    • NSCS serves as the apex body for all matters concerning internal and external security.

    About Bharat NCX 2024

    • It aims to strengthen India's cybersecurity resilience by training cybersecurity professionals and leaders to tackle evolving threats.
    • It includes immersive training, live-fire simulations, and strategic decision-making exercise which will bring together senior management from across sectors to simulate decision-making in a national-level cyber crisis.
    • Tags :
    • National Security Council Secretariat (NSCS)
    • Bharat National Cyber Security Exercise

    VISION Portal

    Union Minister of Science and Technology has inaugurated Viksit Bharat Initiative for Student Innovation and Outreach Network (VISION) portal.

    About VISION Portal

    • It aimed at nurturing education, skill development, and innovation among underprivileged children. 
    • It can act as a gateway for those in remote areas to access mentorship and training.
    • It is integral to realizing the country’s aspirations under Vision India 2047.
    • Tags :
    • Skill Development
    • VISION Portal
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