Science News - The Hindu- Page 11

Buoyant aerosol: Smaller droplets, less than five microns, evaporate faster than they settle, hence, get carried away by air to longer distances.

Can coronavirus spread through airborne transmission of aerosols?

A study measured the size distribution, travel distance and velocity of droplets when a person coughs or speaks

Fallout: COVID-19 will take away at least six months from the productive life of PhD students.

Plight of doctoral students during the pandemic

Useful discovery: The antibody could help block infection in cultured human cells.

Monoclonal antibody to block coronavirus infection identified

Aswathi Pacha The team had isolated the SARS virus duringthe outbreak of 2002

Mannequins covered with face masks displayed at a shop in Bengaluru’s Rajarajeshwari Nagar on Tuesday.

Coronavirus | Social distancing norms of 6 feet insufficient, virus can travel nearly 20 feet: study

PTI Novel coronavirus can spread up to three times further in cold and humid weather, according to the researchers

Editor's Pick

Herd immunity: The concept is generally used to calculate how many people will need to be vaccinated in a population in order to protect those who are not vaccinated.

Aiming to achieve herd immunity naturally is ‘dangerous’, WHO warns

R. Prasad Only well-designed studies on those recovered from COVID-19 can provide the much-needed information on immunity

Traditional belief and today’s science

D. Balasubramanian

AYUSH can fight COVID-19, while Ganga Jal can only carry it

Three -layered: The middle layer is deposited with anti-viral and anti-bacterial agents.

IISc develops antimicrobial composite material and testing protocols for PPEs

Shubashree Desikan It stops particles over 0.3 micrometres in size with about 95% efficiency

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Watch | What is a heat wave?

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Watch | Nobel Prize for discovering how cells sense and adapt to oxygen levels

Chemistry Nobel goes to three scientists for developing lithium-ion batteries

Study: Indian paper wasps have favourite spots in their nests

Nobel prize in physics 2019: Award for the study of the universe

Canadian-American, Swiss star gazers win Physics Nobel

Saturn overtakes Jupiter as the planet with most moons

Three scientists share medicine Nobel for discovery of how cells sense and adapt to oxygen

William G. Kaelin Jr, Sir Peter J. Ratcliffe and Gregg L. Semenza have been jointly awarded the 2019 Nobel Prize for Physiology

India’s Vishnu Nandan among 300 researchers to join largest ever Arctic expedition

The 32-year-old polar researcher from Kerala will be the only Indian aboard the multidisciplinary drifting observatory for the Study of Arctic Climate (MOSAiC) expedition,

Chandrayaan 2: ISRO releases pictures of moon surface

Orbiter High Resolution Camera provides high spatial resolution images.

Scientist from Andhra Pradesh wins CSIR Young Scientist Award 2019

On September 26, Sasidhar B.S. accepted the CSIR Young Scientist Award in Chemical Sciences 2019 from Union Minister of Science and Technology Harsh Vardhan

Wild bonnet macaques gesture intentionally

This requires complex cognitive capacity

Bright light to study ancient scrolls

Scientists at Britain’s national synchrotron facility have harnessed powerful light beams to virtually unwrap and decipher fragile scrolls dating back

IISER Pune team synthesises photocatalyst to degrade organic pollutants

The highly unstable perovskite mineral was converted into a robust form capable of decomposing toxic organic pollutants commonly present in water

IGIB finds a protein with better precision in gene-editing

The new protein was able to correct sickle cell anaemia mutation in patient-derived stem cells

India is home to Asia’s oldest bamboo

Two fossils dating back 25 million years were found in Makum coalfield in Assam

This week, it's all chemical elements

Elon Musk unveils new Mars rocket prototype, expects missions in months

“The critical breakthrough that’s needed for us to become a space-faring civilisation is to make space travel like air travel,” said Elon Musk, chief executive of electric carmaker Tesla Inc.

International Astronomical Union names asteroid after Pandit Jasraj

The asteroid, or more formally known as a minor planet, is located between Mars and Jupiter, and was discovered on November 11, 2006.

Caught in the act: a black hole rips apart an unfortunate star

NASA’s planet-hunting telescope used for detection

Palaeo-artist breathes new life into ancient fossils

Viktor Radermacher says his job is to give the world an idea of what long-extinct species looked like

IISc: Trapping, moving nanoparticles with light

Plasmonic tweezers are limited by the fact that they are fixed in space and can therefore only trap objects that come close to them.

Scientific way of reviving fragments of rainforests

Degraded forest areas studied in Anamalai Hills recovered significantly in terms of numbers of trees and species

Why do we nod off during lectures?

The longer the lecture the more were the nodding-off events per lecture

Bio-restoring degraded patches of Sunderbans

Lack of essential nutrients and increasing salinity were main reasons for decline

Food insecurity affects children’s learning

Indian adolescents’ performance in maths, reading, vocabulary was affected, a study finds

Want your name to go to Mars? NASA gives you a chance!

Over 9.8 million people have submitted their names so far

Putting STEM to work

It is not enough to learn science, technology, engineering and mathematics. We need to encourage innovation and help students connect their lessons with real-world problems

Watch | The first Arab on the International Space Station

Hazzaa al-Mansoori will make history as the first Arab on the International Space Station. Mansoori belongs to the United Arab Emirates. He tweeted

Chandrayaan 2 Vikram Lander had a hard-landing, may be hiding in a shadow: NASA

NASA releases images of Vikram’s targeted landing site captured by its Lunar Reconnaissance Orbiter.

NASA’s 1969 moon landing lab to be demolished next year

NASA says the Houston building where Apollo 11 astronaut Neil Armstrong and his colleagues emerged from quarantine after their 1969 moon mission has

Planned for six months, India’s Mars mission Mangalyaan completes five years

The Mars Orbiter Mission is the only artificial satellite that could image the full disc of Mars in one view frame and also image the far side of Deimos.

A student-built robot reports for duty

Meet SARA, the humanoid assistant created by six girls from Shri Shankarlal Sundarbai Shasun Jain College for Women

ISRO initiates ‘Project NETRA’ to safeguard Indian space assets from debris and other harm

ISRO takes serious steps at space situational awareness

Giant earthworm found at the foot of Western Ghats

Measuring 3 ft 5 cm, it was discovered by farmworkers

Chandrayaan 2’s Vikram lander, Pragyan rover fade into lunar sunset, their batteries likely dead

Lander had unexpectedly crashed on moon minutes before its descent.

Genes implicated in bipolar disorder identified

The team studied a large family with many affected members and identified the relevant gene variations linked to the disorder

A sensitive sensor detects drug-resistant leukaemia

The sensor was able to detect multidrug-resistant leukaemia cells even when just 10 cells per ml were present

Nanocurcumin enhances BCG vaccine efficacy

Curcumin also helps in the activation of innate immune cells known as macrophages and dendritic cells

Novel technology helps reverse baldness in mice

Reversing baldness in the future may be as simple as wearing a hat, thanks to a new noninvasive, low-cost hair-growth-stimulating technology tested

Genetics reveals origin and evolution of blackbuck, chinkara

Blackbuck ancestors came into India from the Saharo-Arabian region about two million years ago

Sivan terms Chandrayaan 2 mission a huge success

Country is raring to go on Gaganyaan (crewed orbital spacecraft) mission, says the ISRO chairperson

From DNA, scientists create skull of mysterious Neanderthal cousin

The genetic material came from the finger bone of a female member of the Denisovans, a population known mostly from small bone fragments and teeth recovered in Siberia’s Denisova Cave.

Catch a cold and help scientists make new vaccines

Under a new model, volunteers will be infected with viruses or bacteria

Keezhadi excavations: Sangam era older than previously thought, finds study

Carbon dating suggests that the cultural deposits may be 300 years older than believed

Chandrayaan 2: As lunar night falls, ISRO to call it a day on revival of Vikram Lander

Meanwhile all eight devices on the orbiter have been fully turned on, tested and are working well, it said.

NASA orbiter captures images of Chandrayaan 2 Lander Vikram’s attempted landing site

The Lunar Reconnaissance Orbiter images, captured during its flyby of Vikram’s attempted landing site near the moon’s uncharted south pole, are still being processed, a NASA official said.

Dust cloud from asteroid collision shaped life on Earth 466 million years ago, say scientists

“For the first time, scientists can now present another example of how an extraterrestrial event formed life on Earth,” said Birger Schmitz, the lead author of the research paper

ISRO thanks all Indians for support after it lost contact with Chandrayaan-2’s Vikram lander

ISRO got support from the entire nation, despite it losing communication with the lander ‘Vikram’ ahead of the touchdown on September 7

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