Weekly update on all the happening
in Science & Technology, in and around the nation;
Headlines
- Fourth Satellite
of the IRNSS to be launched in March
Fourth
in the seven satellite constellation of Indian Regional Navigation Satellite
System – India’s Indigenous system being developed by ISRO; to be launched by
PSLV-C27 rocket – scientists developing cryogenic propulsion systems;
- Tiger population
of the country increased by 30% - Status of Tiger in India Report 2014
Tiger
population increased from 1706 (in 2010) to 2226 (in 2014) – Karnataka has the
highest number of tigers, followed by Uttarkhand; MoEFCC – initiative to
conserve tiger along with forest management & community participation –
declaration on Jan 2015; India has 70% of the world’s Tiger population; number
estimated under 3rd round of country level tiger assessment – finest
technologies like double sampling using camera traps;
- IIT Madras develop
an eco-friendly low cost building
system
By
Research team of IITM - Using pre-fabricated panel- made from the waste of
fertilizer industries (gypsum & glass fibre) – efficient & sustainable
buildings; Building based on Glass Fibre Reinforced Gypsum Technology (GFRGT) -
Building cost is as low as Rs.1250 per square foot – Technology allows for
building up to 8 stories - Technology may help in affordable housing projects;
- Death due to Non
Communicable Disease in India is High : Report by WHO
60%
of the total mortality in India during 2014 was due to non-communicable
diseases (NCDs) – 4 main NCDs – probability of death among 30 & 70 years
age group high in India – Heart, Cancer, Diabetes & Respiratory disease; WHO
recommend ban on all forms of Tobacco product, Alcohol advertisements, Reducing
use of salt content, Replacing Trans Fat with Poly unsaturated fat, promoting
& protecting breast feeding, early detection & treatment of High BP,
preventing cervical cancer through periodical screening;
- ESA spacecraft
Beagle-2 found on Mars
After
11 years, being considered to be lost by the researchers - UK lead ESA’s
Beagle2 – found in the mars by NASA’s Mars Reconisance orbiter; ‘Beagle’ named
after HMS Beagle in which Charles Darwin
travelled; Technology Miniature eyes used in the Beagle 2 is technological marvel – it is to be
used in future projects like EXOMARS 2018 Rover;
- Migratory Birds
(IN FOCUS)
Months
of December & January - India sub-continent host for Variety of exotic bird
species – Moderate climate & rich biodiversity play catalyst;
These
birds flock around water bodies – these are migratory birds travel thousands of
mile to escape & to survive the harsh winter at native breeding grounds –
they undergo elaborate preparation in order to migrate – they stock energy by
consuming more food before migration- 40% of the bird living in Europe &
Asia are migratory in nature; it is complex biological & ecological
phenomenon; these birds are genetically designed to migrate – bigger flight
muscle – extra power with natural steroids;
Migration
is too risky and prove Survival of the fittest – threat of human attack, competition
for food & resources, shore oil leaks, structures like transmission towers,
long distance travelling; some birds fly in the altitude of 50 m where the
density of the air is much lesser than at the sea level – they glide using the
wind & wave pressure for dynamic soring;
More
than 2000 years ago, Aristotle probably
first explained the Bird Migration; He noted cranes travel form steppes of Scythia
to the marshes of the head water of Nile;
Some Migratory birds coming to
India in winter season: Siberian
crane, Greater Flamingo, Black wing stilt;
Some Migratory birds coming to
India in summer season: Asian koel,
black crown night herone, Eurasian golden oriole, comb duck, cuckoos;
- History of Science
Segment
- Anglo-Irish
Chemist Robert Boyle – Born in Jan 1627 – Known for Boyle’s Law – Describe
the relationship between absolute pressure and volume of gas if the
temperature is kept constant in a closed system;
- American
Physicist of German origin Polykarp Kusch – Born in Jan 1911 - awarded
Nobel prize in physics in 1955 – for the determination of magnetic moment
of the electron is greater than its theoretical value;
- Indian Scientist
Raja Ramanna – Born in Jan 1925 – known
for his leadership in directing the Indian Nuclear Programme – India’s
First Nuclear Device was tested under his supervision in Pokhran 1974 –
held important positions like Secy, Dept of Atomic Energy and DG of DRDO;
- Cannadian
Chemical Engineer – Lewis Urry – Born in Jan 1927 – invented the alkaline Battery
& Lithium Battery – For this he used Manganese oxide and Zinc powder in an alkaline medium - the
batteries worked 40 times longer than the zinc carbon battery;
- South African
Virologist Max Theiler – Born in Jan 1899 – developed a powerful vaccine
against yellow fever – was awarded Nobel Prize in Physiology / Medicine
in 1951;
- American Chemist
– William Richards – Born in Jan 1868 – Methods for determining the Atomic
weight of many chemical element – helped in the research on Isotopes Awarded
with the Nobel prize in Chemistry in 1914;
- Science Express –
S & T Activities
- Indian fast
growing largest user of Mobiles in the world – Report on Mobile Internet –
Internet & Mobile Association of India (IMAI) and IMRB international;
- NASA and NOAA
(National Oceanic & Atmospheric Admin.) Research – 2014 as Earth’s Hottest year on
record – sore in temperature due to expulsion of GHG by burning fossil
fuels;
- Symposium on
Transforming Mountain Forestry – by Dehradun based Mountain research
Institute and ICIMOD (Kathmandu) International Centre for Integrated
Mountain Development – developing
conducive boundry politically and institutionally to protect the forest
ecosystem in the Hindukush Himalayan Region; Addressing the inaugural, Minister invited more Trans boundary
cooperation;
- Harsh Cold Wave –
Sanjay Gandhi Biological Park, Bihar – steps to create warmth to protect
animals;
- World Economic
Forum 2015 – Dr. David Nabarro, (US) invited - $1 Bn initiative to fight deadly
disease Ebola in the African continent;
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