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  • ENVIRONMENTAL TECHNOLOGY

    Earth is the only planet to sustain several technologies innovated by humans. Many of these technologies have been either treating the environment positively or impacting it with negative impacts. Environmental technology has by far been the prime tool to deal with the altering environment….

    What is Environmental Technology?

    Often referred to as green technology, Environmental technology is basically the application of environmental sciences for the betterment of environment. These sciences help in the development of new technologies that observe, protect or reduce the harm caused due to the excessive use of natural resources. Environmental technology aims for development that benefits the environment and slows down the depletion of natural resources and reduce the amount of pollution.

    How can it be pursued as a career?

    Environmental technology is a broad field. It includes anything and everything related to technology that would benefit the environment. In short, it is technology that would help sustain the environment in its natural form.  The field has multiple aspects that can be termed as specializations or individual careers. Each of these aspects of the field brings in various ways and methods to conserve the environment. Let’s learn about a few careers that the field offers –

    Environmental technician

    These technologists inspect and maintain tools, manage waste and look after waste operations by collecting samples and studying them in testing laboratories. They monitor the environment to find the sources of pollution that affect human health and often work under the guidance of an environmental scientist.

    Environmental scientist

    A scientist collects data from air, soil, water, food samples and perform detailed research. On the basis of their findings, they develop plans to prevent, control or fix environmental problems. They prepare technical reports and presentations to explain their findings.

    Environmental engineer

    An engineer designs systems or tools and implements measures to prevent, control or fix environmental dangers. They often work on recycling and treating all kinds of waste after studying the data collected by technicians and researched by scientists.

    Environmental manager

    A manager often supervises environmental activities in private and public organisations. He/she work on plans and observes various strategies to promote environment sustainability. A manager also sees to it that the necessary changes are applied.

    Environmental Consultant

    A consultant conducts desk-based research. He/she understands data collected by field surveys to check the pollution levels or contamination caused in an area. Through the interpretation, he/she writes reports with the help of software to share the survey findings.

    What educational requirements do careers in Environmental Technology offer?

    A career in environmental technology usually needs formal education with a bachelor’s degree for entry-level work. To pursue a career in Environmental technology, one needs to hold a bachelor’s degree from science stream. One can enrol for B.Sc. in Environmental sciences or enrol for a B.E. in Environmental technology. He/she would need a study of chemistry, biology, geology and hydrology. To study environmental technology on a post-graduate level, one can enrol for M.Sc or M.Tech. Students can also enrol for two-year skill based degree programs which enable them on-the-job training. Many institutes also offer certificate programmes for undergraduate or post-graduate candidates.

    What personal attributes does one need to opt a career in environmental technology?

    Careers in environmental technology need technical skills and abilities. One needs to possess excellent reading skills to understand data and survey. He/she also needs to have critical thinking skills. Often one needs to possess good communication skills as one may need to be working as a team member. One thus needs to have strong listening, speaking and writing skills. One must also have good social skills in order to convey facts correctly and clearly. Above everything, one needs to have very good observational skills. He/she must be able to recognise and identify possible environmental issues and try to find appropriate solutions.  Candidates should also have excellent maths, science and computing skills so as to plan and design systems and understand the data. He/she should also have a passion for working towards a better environment and conserve natural resources. One should be able to learn new techniques and adapt to newer technologies.

    Noel Fernandes

    ScienceNow Digital

  • Let us be Science Capitalists

    In the modern-day societal ecosystem, according to Bourdieu, three dominant types of resources function as capital – economic, cultural and social. To further simplify and make things self-explanatory…

    ECONOMIC CAPITAL refers to the amount of money and material resources one possesses; CULTURAL CAPITAL is indicative of the cultural resources one has – it could be interpreted in terms of educational qualifications, which also includes informal cultural dispositions;

    SOCIAL CAPITAL is best understood as the network of people one has access to, and is able to mobilise so to achieve instrumental ends

    For Bourdieu, these forms of capitals were central to structuring of any society, and thereafter identifying them into different social classes and class fractions. In Bourdieuan scheme of things, ‘Capital’ signified the Social, Cultural and Economic resources that one should be able to use to manage the affairs of life. Social Capital referred to the Networks, Connectivity and Connectedness that an individual has in the Society. Similarly, Cultural Capital referred to cultural dispositions and academic qualifications

    SCIENCE CAPITAL IN TODAY’S CONTEXT

    The modern form of ‘Science Capital’ as developed by Professor Louise Archer is a way to understand why these Science Related Resources, Attitudes and Aspirations led some children to pursue Science, while others did not. It has been constructed entirely on the 5-year research study involving children aged 10–14 and their families. Prof. Archer found those children from families having greater exposure to Science related-resources and those having parents engaged in scientific pursuits/ hobbies or careers were more likely to pursue ‘Science’ at their school, and later as a career. Ashtamanam – The Eight Dimensions of Science The ‘Science Capital’ acquired by a learner can be broadly categorized into Eight Dimensions:

    1. Scientific Literacy: It is the knowledge and understanding package that a student has about Science. It includes his renewed confidence over the acquired knowledge, which is based on his ‘competence’ and his just feeling that they know ‘Science’.
    2. Attitudes and Perception: This dimension involves science-related Attitudes, Values and Dispositions. Here the perception possessed by the student is that ‘Science is relevant to everyday life’ and he is aware of its importance.
    3. Applicability of Science: The individual is in complete know about the ‘transferability of Science’. There is an implicit belief in the value of the various scientific methods.
    4. Hunger for Science: It describes the engagement of the student with ‘Science Stuff’ in all forms of the media – television, books, journals, Internet, etc. and there is a strong desire for more science based information and knowledge.
    5. World is my classroom: Looking far beyond the four walls of the formal classroom, the frequency and intensity with which the individual will try to seek informal learning of Science.
    6. A Science Family: In all likelihood, the urge for exploring science and beyond would be seen as spreading within the family of the learners. If there are Science and Technology related Skills, Jobs, Qualifications or Interests in one of the members of the family, the reflection of the same will be visible in all.
    7. Reverence and Respect: Familiarity would breed respect for people possessing higher knowledge of the science, especially, the people whom the learner knows in their circle. This would include family, friends, peers and society community who are contributing to the build-up of the ‘Science Capital’.
    8. Scientific Lingua: The final dimension will be visible in the form of ‘Science Conversation’ with important people in the daily encounters, which would in turn amount to Science talk in everyday life.

    Science Capital – Bag & Candle Metaphor

    Illustratively, the ‘Science Capital’ could be visualised as a bag that every learner carries throughout his life. The Eight Dimensions mentioned above are but the four critical differentiating factors, namely: What you know about Science? How you think about it? What you do? Who you know? The first three could be loosely categorized ‘Cultural Capital’, whereas the fourth could be looked at as ‘Social Capital’.

    Now the ‘Burning Candle’ is a good metaphor to illustrate the learner’s engagement with Science, and the role of the social milieu. The ‘flame’ represents the learner’s Science Engagement. How elegantly it burns depends on context and time, whereas the ‘candle’ corresponds to the learner’s attitudes, dispositions and capital. The igniting spark to set the flame on could be the ‘Science Teacher’ or a ‘Science Encounter’. Just as the amount of Oxygen and the state of the air decide the brightness and the stability of the flame; Expectations, Opportunities and Recognition of the learner determine the quality of the learner’s Science Career.

    Teaching and Learning Science It is now a universally acknowledged maxim that the higher the Science Capital, the greater the engagement with Science. Teachers can make a significant difference to learner engagement with Science by recognizing and appreciating leaner’s Science Capital. Enlightened and eclectic Science Teachers can use this methodology to broaden what matters. The three firm foundations for enhancing Science Capital of learners are: ‘Personalizing and Localizing’, ‘Eliciting, Valuing and Connecting’ and ‘Augmenting the Science Capital Dimensions’.

    Science Capital is a paradigmatic shift in Science Education to make learners future ready. Many learners in India fail to see Science as relevant to their life. They view it as something not for them, thus making their engagement with Science difficult. Social justice demands improved Science engagement with increased Science Capital for the maximum benefit of maximum learners…Let us be Science Capitalists!

    Dr. A. P. Jayaraman,

    Chairman.

    National Centre for Science Communicators

  • Lighter Moments

    Enjoy lighter moments in Science

  • QUIZ

    Get set to test Your IQ…

    1. Which processes are responsible for falling of rain?
    (A)Evaporation
    (B) Sublimation
    (C) Condensation
    (D) Liquefaction
    A. E & G
    B. E & F
    C. F & G
    D. H & E

    2. Germs in the water can be killed by __________.
    A. Condensation
    B. Boiling
    C. Filtration
    D. Decantation

    3. Which natural phenomenon is responsible to produce ozone gas?
    A. Water cycle
    B. Hail storm
    C. Lightning
    D. Earthquake

    4. Which of the following firecracker replicate the principle of launching of satellite?
    A. Atom bomb
    B. Anar
    C. Bhuichakrn
    D. Rocket

    5. In what form is energy stored in cooking gas?
    A. Light
    B. Heat
    C. Light and Heat
    D. Chemical

    6. What is 7 + 7 ÷ 7 + 7 × 7 – 7 =
    A. 0
    B. 42
    C. 50
    D. 57

    7. A 250-meter-long train crosses a pole in 15 seconds. What is its speed in km/hr?
    A. 90
    B. 45
    C. 70
    D. None of these

    8. Rs. 180 is stored in a box in the form of 1 Rupee coins, 50 paisa coins. Their ratio is 2:3:4. Find the no. of 50 paisa coins.
    A. 60
    B. 120
    C. 150
    D. 180

    9. The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number.
    A. 4.5
    B. 5
    C. 2
    D. 4

    10. Diagonal of a square is 12√2. Find the ratio between the area of this square and that of square drawn on diagonal.
    A. 2:1
    B. 1:1
    C. 1:2
    D. 1:3

    11. From where can one see the sun rising from the west?
    A. Saturn
    B. Venus
    C. Mars
    D. Mercury

    12. How many rotations does the earth take in its one revolution?
    A. 365
    B. 367
    C. 364
    D. 430

    13. Which of these contain large quantities of ice?
    A. Asteroids
    B. Stars
    C. Comets
    D. Black holes

    14. India’s satellite launchpad is located at ___________.
    A. Thumba
    B. Sriharikota
    C. Ahmedabad
    D. Dehradun

    15. About how many galaxies are there in the Universe?
    A. 25 Million
    B. 25 billion
    C. 25 quadrillion
    D. 25 gazillion

    16. What kind of simple machine is ‘Jack’ which is used, while removing a punctured wheel?
    A. Pulley
    B. Inclined plane
    C. Lever
    D. Wedge

    17. A method of growing plants without soil is called __________.
    A. Hydroponics
    B. Horticulture
    C. Agriculture
    D. Aquaculture

    18. Sound waves in the air are ___________.
    A. Transverse
    B. Longitudinal
    C. Electromagnetic
    D. Polarized

    19. Magnetism at the center of a bar magnet is ___________.
    A. Minimum
    B. Maximum
    C. Zero
    D. minimum or maximum

    20. Sound of frequency below 20 Hz is called ____________.
    A. Audio sounds
    B. Infrasonic
    C. Ultrasonic
    D. Supersonics

    21. In which part of the alimentary canal the food is churned?
    A. Stomach
    B. Small intestine
    C. Large intestine
    D. Liver

    22. What sensory function do the ears provide other than hearing?
    A. Smell
    B. Balance
    C. Temperature
    D. Radiation

    23. How many sweat glands does the average person have?
    A. 260000
    B. 2 million
    C. 2.6 million
    D. 260 million

    24. The rarest blood group is __________.
    A. O negative B.
    B negative
    C. AB positive
    D. AB negative

    25. The longest and largest bone in the human body is ___________.
    A. Spinal Cord
    B. Femur
    C. Humerus
    D. Fibul

    -Team ScienceNow Digital

    QUIZ ANSWERS 1. A; 2. B; 3. C; 4. D; 5. B; 6. C. Given 7 + 7/7 + 7 x 7 – 7 By using BODMAS rule, 7 + 1 + 7 x 7 – 7 = 8 + 49 – 7 = 57 – 7 = 50. Hence 7 + 7/7 + 7 x 7 – 7 = 50; 7. D. None of these; 8. B. 120; 9. D. 4; 10. C. 1:2; 11. B; 12. A; 13. C; 14. B; 15. B; 16. C; 17. A; 18. B; 19. C; 20. B; 21. A; 22. B; 23. C; 24. D; 25. B

  • NOVEMBER : Science Events Through Years

    Browse through the almanac…

    Nov 5, 2007

    China’s first lunar satellite Chang’e 1 goes into orbit around the Moon. The unmanned lunar-orbiting spacecraft was part of the first phase of the Chinese Lunar Exploration Program. The spacecraft was named after the Chinese Moon goddess, Chang’e.

    Nov 6, 1944

    Plutonium is first produced at the Hanford Atomic Facility and subsequently used in the Fat Man Atomic bomb dropped on Nagasaki, Japan.

    November 7, 1492

    Ensisheim Meteorite – the oldest meteorite with a known date of impact, strikes the earth around noon in a wheat field outside the village of Ensisheim in France. November 8, 1895 While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.

    November 9, 1921

    Albert Einstein is awarded the Nobel Prize in Physics for his work with the photoelectric effect. November 9, 1967 NASA launches the unmanned Apollo 4 test spacecraft atop the first Saturn V rocket from Cape Kennedy, Florida.

    November 11, 1930

    Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator. Nov 13, 1971 The American space probe Mariner 9 becomes the first spacecraft to orbit another planet successfully, swinging into its planned trajectory around Mars.

    Nov 19, 1998

    The first module of the International Space Station, Zarya, is launched. Nov 20, 1877 Thomas Edison announces his invention of the phonograph, a machine that can record and play sound.

    Nov 24, 1969

    The Apollo 12 command module splashes down safely in the Pacific Ocean, ending the second manned mission to the Moon.

    Nov 25, 1867

    Swedish chemist and engineer Alfred Nobel patented dynamite – an explosive made of nitroglycerin, sorbents and stabilizers, in Geesthacht. It rapidly gained wide-scale use as a more powerful alternative to black powder.

    Team ScienceNow Digital

  • Riddles: Science FUN

    Let’s Try some Trivia….

    What is the loneliest of all physics concepts?

    The singularity

    What kind of chemical element hates to be a follower?

    Lead

    What can kill with only a thimble worth; yet is around you at all times?

    Oxygen

    What is the most uninteresting of all the periodic elements?

    Boron

    What did scientists say when they found 2 isotopes of Helium?

    They said “HeHe”.

    What period of time has the least weight?

    A light year

    What number do Nickel and Neon make when combined?

    Nine (NI + NE)

    Who eats a lot of iron without getting sick?

    The rust.

    What can be measured, but has no length, width or height?

    The temperature.

    What do chemists call a benzene ring with iron atoms replacing the carbon atoms?

    A ferrous wheel

    Team ScienceNow Digital

  • Star Chart November

    Watch the Sky in Winter Nights….

    This star chart is for early November 9 pm mid November 8 pm and end November 7 pm .To use this chart, hold the star chart vertically, face any direction in the sky. Turn the star chart around so that the direction you are facing is at the bottom.

    Now, the stars shown at the bottom in the chart are the stars you will see in the sky.

    Dots represent stars. The larger the dot the brighter the star.

    Lines between stars are imaginary and aid location.

    Names of constellation are along each side each constellation

    Monthly phases

    Full moon

    08 November 2022 16:32

    Last quarter

    16 November 2022 18:57

    New moon

    24 November 2022 04:27

    First quarter

    30 November 2022 20:07

    Full moon

    08 December 2022 09:38

     

    Suhas Naik-Satam

    Nehru Planetarium

  • Covid and Mental Health

    Recent study published in The Lancet Psychiatry journal states that having symptoms of COVID-19 infection is associated with poorer mental health and lower life satisfaction, The study focused at the impact of COVID-19 infection on subsequent mental health and wellbeing….

    The study was conducted by researchers at King’s College London and University College London (UCL) in the UK. The sample size of 54,442 participants included patients with and without self-reported COVID-19.

    It was revealed that rises in psychological distress, depression, anxiety, and lower life satisfaction were associated with prior self-reported COVID-19. The associations with poorer mental health did not lessen over time after infection, highlighting the potential enduring impacts of the disease and the need for a longer follow-up processes.

    Self-reported COVID-19 were consistently associated with psychological distress, regardless of whether people tested positive for antibodies to the virus. The study suggests that the infection of COVID-19 might impact mental health most in older people.

    These findings suggest that there were prolonged mental health consequences of COVID-19 infection for some people at the beginning of this pandemic.

    Dr Siddhi Barve

    ScienceNow Digital

  • Nobel Prizes 2022

    Physiology and Medicine Nobel : Svante Paabo is honoured with the Nobel Prize in Medicine for his extraordinary discovery which proved modern humans share DNA with extinct relatives.

     

    Paabo has developed new revolutionary techniques which can compare the genome of modern humans with other hominins

     

    Physics Nobel : The Nobel Prize for Physics 2022 is shared by three scientists, Alain Aspect, John F Clauser and Anton Zeilinger for their work on quantum mechanics for the pioneering work in Quantum Information Science

     

    Chemistry Nobel : The Nobel Prize in Chemistry 2022 is awarded jointly to Carolyn R. Bertozzi,
    Morten Meldal and K. Barry Sharpless for the development of click chemistry and utilizing it in the living
    organisms