Weekly update on all the happening
in Science & Technology, in and around the nation;
Headlines/Highlights
- MOM geared up to
capture Comet
MOM
orbiting the red planet 25 days – spacecraft send pictures which further our
knowledge about Mars – ready to capture the comet siding spring; Distance
between the Mars & Comet will be 82K miles, MOM will be 400 Kms from the
surface of the Mars and 140,000 Kms form the Comet; Spectacular cosmic event –
comet will leave behind debris & dust particles – hazardous to the
sensitive electronic parts of the MOM - The orbit of MOM was altered to save it
from the impact – Orbit was shortened to 72,200 km from about 78,000km; Now MOM
will move behind the Red planet – will be protected in the shadow of the red
planet;
- ISRO successfully
launches IRNSS Satellite (IRNSS 1C using PSLV-C26)
3rd
Series in the series IRNSS- from Satish Dhawan Space Centre – Indian Regional Satellite Navigation System – aims to provide navigational
& security services – Satellite Initially put in to sub-synchronous Geo
orbit and then lifted to the Geosynchronous Orbit; Spacecraft weighs more than
1400 kg – IRNSS 1C – third in the series
of 7 satellite constellation of IRNSS; Space & Ground Segment and User
Receiver system are developed in India; Unlike
GPS, it could be fully in the control of GoI; Purpose: Marine & Terrestrial Navigation, Disaster Management,
Vehicle tracking, flight Management; Dual
purpose: firstly Standard positioning for civilian use and restricted service for military purpose; IRNSS
is similar to US’s GPS, Russia’s Glosnass, Europe’s Galileo, China’s Biedo,
Japan’s Quasi-Zenith Satellite System; The Entire IRNSS Constellation to be
completed by 2015;
- Student builds an
innovative Bio-Converter @ 4th DST INSPIRE
Unique
feature of Bio Converter – Hermetia
Sanitizer Bio Converter – Novel type of compost Unit developed by 10th
class Zuleika Juliet Antao – for Bio degradable wastes; based on breeding of
Black Soldier flies (Hermetia Illucens)
– Unit is affordable & environment friendly; Remarkable speed of
decomposition & absence of rotting smells;
Plants absorbs more carbon than predicted by the climate model
- DRDO – 2nd
International Conference in Feb 2015 – Theme “ IT Yesterday, Today,
Tomorrow” following the success of last year’s Role of Science &
Technology in the progress of the world;
- Cyclone Hudhud (IN
FOCUS)
Timely
& Accurate prediction by the IMD have helped in the evacuation of the large
population which in turn saved thousands of life; why these cyclones are so
devastating;
Atmosphere
is made of unique combination of elements with unique property – makes it
hospitable & habitable planet;
Cyclones
are very strong thunderstorms – Minimum wind speed of cyclones is 74 mph – Wind
carries the moisture & is in closed circular motion - Cyclones are a
combined action of ocean water & air;
Formation: during summer – due to heat- warm moist air over
the ocean rises up from near the surface – because warm air is lighter than
cold air – as it move upward – it creates a low air pressure below (cold air
form High pressure area pushed to fill the gap) – sooner the air gets heated
and rises too – the cycle continues – as the storm-system rotates faster – very
low pressure area called eye forms in the centre – creating the eye turbulent;
Cyclones
rotates in the same direction as the
earth – Speed of a cyclone is measured in a unit called Knots
Different
names across the world: Cyclone if originates in Indian ocean, Hurrican if
orginated in Atlantic, Typoon in pacific;
How Cyclones are name? Hudhud,
Phailin, Nilofar, Nilam…? (UPSC Mains
2013) Actually WMO (World meteorological Organisation) maintains a list of
names for the Cyclones – practice of naming started in Atlantic region few
hundred years ago – they were name after the Catholic Saints; Formula for
Indian Ocean Region generated in 2004- under the scheme 8 countries (Ind, Bang, Pak, Sri, Myan, Maldive, Oman, Thai) comes
under the Indian Ocean Region – contributed
list of 64 names (8 names from each country); Recent cyclone Hudhud, named by
Oman- India is constantly hit by Tropical
cyclones - 7 coastal states in India are most affected in cyclones;
Alphabetically
arranged list of name;
India
contributed: Agni, Akash, Bijli, Leher, Megh
Pakistan
contributed: Nilam, Nilofar, Titli
Srilanka
contributed: Mahasen
Thailand
contributed: Phailin
Oman
contributed: Hudhud
Familiar
cyclones hit India – Onil 2004, Nisha & Khaimuk 2008, Jal 2010, Nilam 2012,
Helen, Lehar, Phailin 2013, Hudhud 2014;
Indian
coastline densely populated - life of the people here largely affected by these
cyclones – large scale life & property loss;
IMD constantly improving itself, it has high level skills, expertise & tools;
Timely & accurate prediction – helps in major way of managing natural
disaster;
IPCC
and MOEFCC have warned about the likelihood of increase in cyclone in Eastern
coast - Coastal cities with climate resistant infrastructure is need of the hour; TERI done a study on
Infrastructure for Disaster Management;
- History of Science
- Indian Origin
American Scientist S. Chandrashekar – Born Oct, 1910 – biggest contribution to science is
Chandrashekar Limit – as the
maximum mass of the White Dwarf star – according to this the stars that
reach the mass 1.4 times the mass of the sun, become black hole;
- British Physicist
– Born in Oct, 1891 – Nobel
prize in physics in 1935 for discovering neutron;
- Swedish Scientist
– Alfred Bernhard Nobel – Born in Oct, 1833 – instituted highest award for
science- invented Dynamite & gelignite;
- American Bio
Chemist – Charles
Glen King – Born in Oct, 1896 – independently discovered ascorbic acid or
Vitamin C – which is vital for the
treatment of Scurvy;
- Indian Geologist
– Darashaw Nosherwan Wadia – Born in Oct, 1883 – First Indian Scientist to be
employed by the GSI – Dehradun based Wadia Institute of Himalayan Geology
renamed in his honour;
- S & T
activities (Science Express)
- Cities for All –
XI Metropolis World Congress – Hyderabad – Oct 2014 – keynote address by
Dr. APJ Abdul Kalam – Stress up on
the needs of Carbon free cities – Urban
areas should be the place of peaceful living – carbon neutral &
fossil free urbanization;
- Non Alcoholic party
level of disease – cause of more carbohydrate foods - no visible
symptomes Recent Study by Dr. Dinesh Jyothi and Dr. Mohammed Rela;
- NASA activated
Earth sensing observatory ISS RapidScat – measure ocean wind from space;
- Deadly Ebola
passes quickly to US & Europe;
Watch it here