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  • Star Chart : April

    Star Chart : April

    Take a look at the fascinating sky at night..

    This star chart is for early  April  9 pm mid  April 8 pm and end  April  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 

    Monthly phases

    Full moon

    06 April 2023 10:05

    Last quarter

    13 April 2023 14:41

    New moon

    20 April 2023 09:43

    First quarter

    28 April 2023 02:50

     

    Suhas Naik-Satam

    Nehru Planetarium

  • Science News – Catch the latest in Science News…

    ‘Water from Air’ served at Hockey WC Odisha

    Watergen, the atmospheric drinking water devices (AWG), had recently partnered with Hockey India to provide fresh, high quality, mineralized and safe drinking water created from ambient air at the two venues, where matches were played from January 13-29, 2023, free of cost.The company placed its various products including GEN-L which creates up to 6000L of water from air, GEN-M Pro which creates up to 900L of water, and GENNY which can produce up to 30L in both stadia for general public use as well as in the VIP lounge and office areas. Together, these machines generated over 2 lakh litres of water.

    NASA’s Perseverance Rover drops fourth sample on Mars

    NASA’s Perseverance Mars Rover has dropped a fourth sample tube on the Martian surface. The tube contains one of the ten samples that will be considered for a journey back to the Earth as part of the space agency’s Mars Sample Return Program.The Perseverance Mars Rover took 43 six-inch-long cylindrical titanium sample containers to Mars. Among these, 38 will be filled with different kinds of samples collected from the Martian surface while five “witness tubes” will be kept empty to document the cleanliness of the sampling system throughout the mission.

    MIT engineers develop paper-thin solar cells

    Researchers at MIT have developed an ultra-thin and ultra-light solar cell that can be used to turn almost any surface into a solar power source. The flexible solar cells are much thinner than human hair and are glued to a lightweight fabric to make it easier to install them on any fixed surface.The researchers used nanomaterials in printable electronic inks to create this novel solar cell device. They used a “slot-die coater” to deposit layers of electronic materials onto a substrate that is only 3 microns thick. They then used a screen-printing technique to print an electrode and deposit on the substrate to complete the solar cell. At this point, the printed module is about 15 microns in thickness, and researchers can peel off the plastic substrate to get the device. For comparison, human hair is around 70 microns thick on average.

    3 Indian-origin women scientists recognized

    Three Indian-Origin women are among 60 scientists, technologists, engineers, and mathematicians who have been selected as Australia’s Superstars of STEM. It is an initiative that aims to smash society’s gender assumptions about scientists as well as increase the public visibility of females and non-binary people. In 2022, among those recognized as Superstars of STEM include three Indian-Origin women- NeelimaKadiyala, Dr. Ana Baburamani, and Dr.Indrani Mukherjee. Apart from the Indians, female scientists of Sri Lankan origin have also been selected for recognition.

    World’s first nasal COVID vaccine cleared

    Bharat Biotech International Limited announced recently that its COVID-19 intranasal vaccine iNCOVACC (BBV154) has received approval from the Central Drugs Standard Control Organisation (CDSCO) under the ‘Restricted Emergency Use’ for ages 18 and above in India.As per the press release from the vaccine maker, iNCOVACC, a recombinant replication-deficient adenovirus vectored vaccine with a pre-fusion stabilized SARS-CoV-2 spike protein, is the world’s first intranasal vaccine to receive both primary series and heterologous booster approval.Bharat Biotech’s intranasal vaccine is to be used as a heterologous booster dose against the currently available COVID-19 vaccines.

    New penguin colony found in Antarctica

    After spotting bird poop using satellite mapping technology, British scientists are reported to have found a never-before-seen emperor penguin colony at Verleger Point in West Antarctica. The brown-coloured droppings were easily identifiable as a stain on ice, as per researchers. The frozen ice guano is not smelly, unlike the pungent smell of penguin colonies that breed on rocks.Housing around 1,000 adult birds, in 500 pairs with their young, there are only 66 emperor penguin colonies known to exist on the Antarctica coastline, half of which were discovered through satellite images.

    Earth’s inner core rotating slower

    Research says that Earth’s solid inner core, a hot iron ball, has stopped spinning faster than the planet’s surface and might now be rotating slower than it.The Earth’s core is roughly 5,000 kilometres (3,100 miles) below the surface we live on, this “planet within the planet” can spin independently because it floats in the liquid metal outer core.Exactly how the inner core rotates has been a matter of debate between scientists – and the latest research is expected to prove controversial.

    Scientists discover Earth-sized planet

    Scientists from NASA have discovered an Earth-sized planet in the habitable zone, where liquid water could potentially exist on its surfaces.The scientists used NASA’s Transiting Exoplanet Survey Satellite and have identified an Earth-size world, called TOI 700 e. The world is 95 per cent Earth’s size and likely rocky.Astronomers previously discovered three planets in this system, called TOI 700 b, c, and d. Planet d also orbits in the habitable zone. But scientists needed an additional year of TESS observations to discover TOI 700 e.

    Triassic Ichthyosaur was the largest animal ever

    The largest animal that is living at present is the blue whale. Now, new evidence shows that the super-predator was larger than a blue whale and it roamed the seas between 200 and 250 million years ago.Although, evidence shows that this creature was from the Triassic period and scientists believe that its evolution was expedited in some way due to its massive size. Scientists believe that ichthyosaur had a two-meter-long skull. The creature was estimated to be 21 meters long, which made it a super-predator for the time.The jaw-bone was measured to be around 96 centimetres long, the researchers said that based on the size of the bone, the super-predator could have been between 20 to 25 meters, larger than the previous specimen found in 2004.

    Mission to study Sun by June-July

    Indian Institute of Astrophysics (IIA) recently handed over to ISRO, the Visible Line Emission Coronagraph (VELC), the primary payload on board Aditya-L1, which is India’s first dedicated scientific mission to study the Sun, to be launched by June or July.IIA said it has successfully finished assembling, testing and calibrating the VELC, which is the largest and one of the most technically challenging of the seven payloads/telescopes that will fly on Aditya-L1, at its CREST campus.ISRO will now conduct further testing of VELC and its eventual integration with the Aditya-L1 spacecraft, it said in a release.

    Impacts of sea level rise will hit humans early: Study

    A study has said that the biggest inundation will happen after the first two metres of sea level rise, which would cover more than twice the land as was predicted in older elevation models. The highest level of impact would happen after the sea level rises by several metres. The study used high-resolution measurements of land elevation. The measurements were taken from NASA’s ICESat-2 lidar satellite, launched in 2018, to improve upon models of sea level rise and inundation. The radar-based data are, however, less precise, researchers have said.

    Over 90 fossil nests in India uncovered

    Researchers have uncovered 92 nesting sites containing a total of 256 fossil eggs in central India’s Narmada Valley belonging to titanosaurs, which were among the largest dinosaurs to have ever lived.The Lameta Formation, located in the Narmada Valley of central India, is well-known for fossils of dinosaur skeletons and eggs of the Late Cretaceous Period that lasted from about 145 to 66 million years ago, the researchers said.Detailed examination of these nests allowed researchers at the University of Delhi, New Delhi and colleagues to make inferences about the life habits of these dinosaurs. They identified six different egg species, suggesting a higher diversity of titanosaurs than is represented by skeletal remains from this region.

    -Team ScienceNow

     

  • Film Review – Ghostbusters

    That’s right, folks, another Ghostbusters film! Only this time we are going back to the original 1980’s gang of Murray, Aykroyd, Hudson, and Weaver returning to their original roles. Joining the crew will be Paul Rudd and Stranger Things star Finn Wolfhard….

    The third Ghostbusters film has been in various stages of development since Ghostbuster II in 1989 and is now fi nally seeing the light of day (to be released on July 10, 2020). Taking place thirty years after the events of the second movie, the plot follows a single mother and her two children who move to Summerville, Oklahoma after being evicted from their home and inherit property from their late grandfather, Egon Spengler. When the town experiences unexplained earthquakes; the children discover their link to the original Ghostbusters who have become something of a long-forgotten myth.

    -Team ScienceNow

  • Star Chart – March23

    This Star Chart is for early March 9 pm, Mid March 8 pm and end  March 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 

    Phases of Moon

    Full moon

    07 March 2023 18:10

    Last quarter

    15 March 2023 07:38

    New moon

    21 March 2023 22:53

    First quarter

    29 March 2023 08:02

       

     

    Mr Suhas Naik-Satam

    Nehru Planetarium

  • Science Calendar

    Get acquainted with Important Science Day Celebrations in March

     3rd March

    – World Wildlife Day
    This day is celebrated globally on 3rd March and is closely aligned with Sustainable Development Goal 12 that is Life without water, which focuses on marine species and highlights the problems, critical issues of marine wildlife to our everyday life. The theme of World Wildlife Day 2023 is “Recovering key species for ecosystem restoration”.

     4th March

    – National Safety Day
    National Safety Day is celebrated in India on 4th March by the National Safety Council of India. This day is celebrated to make people get safe from several issues like financial loss, health problems, and also any other problems that people are facing in their life.

    8 March

    – International Women’s Day
    This day is observed globally every year on 8 March to celebrate the social, economic, cultural, and political achievements of women. Also, it is an action for accelerating gender parity. Purple is the colour that symbolizes women internationally. The combination of the purple, green and white colour is to symbolize the equality of women which is originated from the Women’s Social and Political Union in the UK in 1908. Do you know that purple signifies justice and dignity, green symbolises hope and white purity?

    9 March

    – No Smoking Day 

    No Smoking Day is observed every year on the second Wednesday of March to raise awareness about the harmful health effects of tobacco via smoking and to encourage people all over the world to quit smoking. This year, it falls on 9 March.

     10 March

    – CISF Raising Day
    The Central Industrial Security Force (CISF) Raising Day is observed every year on 10 March. The CISF was set up in 1969 under the act of the Parliament of India. It works under the Union Ministry of Home Affairs and its headquarter is in New Delhi. This organization works for seaways, airways, and some of the major installations in India. There are some reserved battalions in the CISF which work with the state police to protect law and orders.

     14 March

    – Pi Day
    On 14 March Pi Day is celebrated around the world. Pi is a symbol used in mathematics to represent a constant. It is the ratio of the circumference of a circle to its diameter which is approx. 3.14.

     15 March

    – World Consumer Rights Day
    It is observed on 15 March every year for raising global awareness about consumer rights and needs. This day is a chance to demand that the rights of all consumers are respected and protected and to protest against social injustices.

     16 March

    – National Vaccination Day
    On 16 March every year, National Vaccination Day is observed in India which is also known as National Immunisation Day (IMD). It was first observed on 16 March 1995 when the first dose of Oral Polio Vaccine was given. It is an attempt to increase awareness for the eradication of polio from the planet earth.

     18 March

    – World Sleep Day

    World Sleep Day is held the Friday before Spring Vernal Equinox of each year. This year, it will be observed on 18 March 2023. It is a call to action on important issues related to sleep, including medicine, education, social aspects, and driving. The slogan of World Sleep Day is Better Sleep, Better Life, Better Planet. .

    20 March

    – World Sparrow Day
    World Sparrow Day is celebrated across the world on 20 March to raise awareness about the conservation of sparrows. This day also celebrates the relationship between people and sparrows; spread a love for sparrows, awareness about their importance in our lives, etc.

     21 March

    – World Forestry Day
    On 21st March, World Forestry Day or International Day of Forests is celebrated every year to raise public awareness about the values, significance, and contributions of the forests to balance the life cycle on the earth. In 1971, World Forestry Day was established at the 23rd General Assembly of the European Confederation of Agriculture.

     22 March

     – World Water Day
    On 22 March, World Water Day is observed annually to raise awareness about the importance of freshwater and advocate for the sustainable management of freshwater resources. It was recommended to celebrate in 1992 at the United Nations Conference on Environment and Development (UNCED) in Rio de Janerio. And then, in 1993 the first World Water Day is celebrated.

     23rd March

    – World Meteorological Day
    World Meteorological Day is celebrated on 23rd March every year to attract attention towards weather and climate for the safety and well-being of the society. On 23rd March 1950, the World Meteorological Organisation came into force. The theme of World Meteorological Day 2023 is “Early Warning and Early Action. Hydrometeorological and Climate Information for Disaster Risk Reduction.”

     24 March

     – World Tuberculosis (TB) Day
    World TB Day is celebrated every year on 24 March annually to commemorate the date when Dr. Robert Koch announced his discovery of Mycobacterium tuberculosis, the bacillus that causes TB in 1882. This Day is observed to educate people about TB, its impact around the world.

     26 March

     – Purple Day of Epilepsy

    It is observed on 26 March to spread awareness about epilepsy and its impact on people’s lives. The day also reminds people suffering from epilepsy that they are not alone.

    -Team ScienceNow

  • Review – AVATAR

    James Cameroon’s “Avatar” is not simply a sensational entertainment; it is a technical breakthrough. …\

    The story unfolds sometime around 2154 when the earth is on the threshold of ecological doom. The only solution is a mineral called Unobtainium, found in abundance in Pandora. To get this mineral, the US Armed Forces’ scientific team works towards creating humanoids (human beings whose DNAs are manipulated to make them hybrids) that resemble the Na’vis—pale blue creatures with thin, elongated bodies, wide-set eyes and a flat nose and let them loose in Na’vi land, to persuade the natives to leave their land. The film takes us deep into Pandora with Jake Sully (Sam Worthington), a former marine who is crippled by war. As Cameron surges through the creeks, plateaus, fuming water streams and twinkling bushes with Jake, the film gathers momentum and ends in a catastrophic, morally loaded end.

    -Team ScienceNow

  • Do you know – Know the fascinating Facts….

    Why is Water clear?

    Water is entirely composed of hydrogen and oxygen. Both elements are gases in nature and are invisible. Being composed of such elusive and invisible elements is certainly a large reason why water has that crystal-clear appearance. However, any discoloration that may appear in water from a natural source such as a river, lake or underground streams such as a well is largely due to natural substances such as algae, leaves, dirt and numerous other particles typically brought in by rainwater.

    Why is air Invisible?

    Air is a mixture of gases, mainly nitrogen and oxygen with small molecules (particles) that are far apart. Wavelengths of light may pass by these molecules without hitting them. When they do bump a molecule, it absorbs some colour and scatters some, spreading it out in all directions. But this is too little to reach our eyes for us to notice, thus making air appear invisible

    Why do distant objects look smaller?

    The easiest way to understand this is by thinking about something called your field of view. This is how much you can see, without turning your head. When things are closer to you, they take up more of your field of view, so they seem bigger. When they’re further away, they take up less of your field of view, and so seem smaller.

    Why are vehicle Taillights usually coloured red?

    Functionally red light has less effect on human low light vision than any other visible colour. Red tail and brake lights are highly recognisable to the Rod cells in our eyes, while higher wavelength colours like green or blue are harder to distinguish.

    Team ScienceNow

  • Believe it or Not…

    Beyond Belief… But true… Explore…

    • You are taller in the morning than you are at night! The reason being when you sleep, your spine is no longer subjected to the pressures of gravity.
    • Solar flare explosions of energy on the surface of the sun can be 100,000 times more powerful than all the nuclear weapons on Earth!
    • After a year in space, astronaut Scott Kellys genetic makeup changed so drastically that his DNA no longer matches his twin brother’s!
    • Firefighters in Dubai tackle blazes in highrise buildings and bridges wearing jetpacks!
    • Albert Einstein’s eyes are in a safe deposit box in New York city!

    -Team ScienceNow

  • Star Chart – Get a guided tour of the Sky above you…

    This star chart is for early February  9 pm, mid  February   8 pm and end  February 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 

     

    Monthly phases

    Full moon

    05 February 2023 23:59

    Last quarter

    13 February 2023 21:31

    New moon

    20 February 2023 12:36

    First quarter

    27 February 2023 13:36

     

    -Suhas Naik-Satam

    Nehru Planetarium

  • This Month That Year : February

    This Month That Year : February

    The major Scientific Achievements in the Month of February are as follows…

    1974 – Venus probe

    The U.S. space probe Mariner 10 returned the first close-up photos of the cloud structure of Venus at the closest range of 5768-km. It was also the first time a spacecraft used a gravity assist from one
    planet to help it reach another planet, helping Mariner 10 reach Mercury in Mar 1974.

    1971 – Third U.S. manned moon landing

    Apollo 14, the third US manned Moon expedition, landed with two astronauts in the lunar highlands
    near the crater Fra Mauro. Commander Alan B. Shepard and Lunar Module pilot Edgar D. Mitchell
    became the fifth and sixth men to walk on the Moon.

    1962 – Conjunction of the planets

    The Sun, the Moon, and the five naked-eye visible planets – Mercury, Venus, Mars, Jupiter, and Saturn – were in conjunction. Though not in a straight line along their orbital paths, as viewed in the sky, they were within 16 degrees of each other.

    1956 – First concrete TV tower

    The world’s first concrete television tower on the Hoher Bopser hill was inaugurated in Stuttgart,
    Germany. Instead of a steel girder transmitter mast, design engineers Fritz Leonhardt, Erwin Heinle and Rolf Gutbrod originated a 217-m steel-topped concrete needle to broadcast TV and FM radio.

    1918 – Edison car starter patent

    Thomas A. Edison was issued a U.S. patent for Starting and Current-Supplying System for
    Automobiles; (No. 1,255,517).

    1850 – Calculator patent

    The first U.S. patent for push-key operation for an adding machine was patented by Dubois D.
    Parmelee of New Paltz, N.Y. (No. 7,074). His Calculating Machine; patent diagram showed 9 keys.

    -Team ScienceNow