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Light-based information stored as sound for the first time
short by Dishant Sharma / on 18 Sep 2017,Monday
Researchers at the University of Sydney have successfully managed to store light-based information as sound waves on a computer chip for the first time. The successful conversion and reversion of light-based information to sound waves will help in the development of photonic computers, which are claimed to be 20 times faster than current electronic computers.
short by Dishant Sharma / 10:43 pm on 18 Sep
How much does a newly-recruited NASA astronaut earn?
short by Dishant Sharma / on 18 Sep 2017,Monday
A newly-recruited NASA astronaut's salary lies between ₹42 lakh and ₹92 lakh per year. The space agency revealed that it received a record 18,300 entries when it invited applications for a new class of astronaut trainees last year, from which only 12 were selected. NASA requires applicants to be graduates in a field of science, technology, engineering or mathematics.
short by Dishant Sharma / 09:13 pm on 18 Sep
12-yr-old in Chhattisgarh diagnosed with all 4 malaria types
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
A 12-year-old Chhattisgarh boy was diagnosed with quadruple malaria, wherein all four malaria-causing species are found in a single blood sample, making it the first such reported case from India. Of the four species, P. falciparum was the dominant one, which has been found in 70% of the 4.86 lakh malaria cases reported till July this year, doctors said.
short by Gaurav Shroff / 05:07 pm on 20 Sep
How does DNA hold genetic information?
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
DNA (deoxyribonucleic acid) consists of two polynucleotide strands that twist around each other to form a double helix. DNA's ability to store genetic information comes from the fact that its A,C,G,T bases link across the two strands in a specific manner. The information can be replicated as each strand can act as a template for generating a complementary strand.
short by Gaurav Shroff / 04:44 pm on 20 Sep
Who was Oetzi, the Stone Age Iceman?
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
Oetzi, a 5-foot-3-inch-tall iceman, believed to have lived 5,300 years ago is Europe's oldest known mummy, having been found in Italy's Oetztal Alps on September 19, 1991. According to scientists, Oetzi possibly died aged 45 from an arrow wound after which his body got preserved in ice and has since contributed to present knowledge of Neolithic mankind's lifestyle.
short by Gaurav Shroff / 07:34 pm on 19 Sep
Underwater 'city' built by octopuses found, named Octlantis
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
US-based researchers have discovered underwater dens with pilings of shells and holes dug into sand, home to about 15 octopuses, off the Australian coast. At the site, dubbed 'Octlantis', researchers observed mating and signs of aggression, with some octopuses seen evicting other animals. The site was a few hundred metres away from the first such site 'Octopolis', found in 2009.
short by Gaurav Shroff / 01:19 pm on 19 Sep
NASA-backed team returns from 8-month isolation near volcano
short by Gaurav Shroff / on 18 Sep 2017,Monday
After eight months of living in isolation near the world's largest active volcano in Hawaii, a six-member crew emerged from their Mars-like habitat on Sunday. The NASA-funded study was aimed at understanding long-term space mission's psychological effects on astronauts. In isolation, the crew wore spacesuits, shared a 111-sq-meter habitat and had a 20-minute communication delay with outside world.
short by Gaurav Shroff / 09:16 am on 18 Sep
Paris deal's 1.5ºC limit still achievable, claims new study
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
An international team of researchers has claimed the "ambitious" Paris climate goal to limit global warming at 1.5ºC by 2100, is still possible. A researcher associated with the new analysis said, in 2015, the carbon cuts needed were "incompatible with democracy", however, with the current dip in prices of renewables, a 66% chance of meeting the goal still exists.
short by Gaurav Shroff / 09:44 am on 20 Sep
Highest temp ever recorded on Earth due to meteorite: Study
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
An international team of researchers has found evidence of a meteorite hitting Earth 38 million years ago, which produced the highest temperature ever found to exist naturally on the planet's surface. The team analysed a 28-kilometre-wide crater in Canada and found that the heat generated by the impact would have reached a temperature of at least 2,370ºC.
short by Gaurav Shroff / 01:21 pm on 19 Sep
New method uses sound waves for blood tests
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
MIT scientists have used sound waves to extract biological messages carried by exosomes in blood, which could be used to diagnose problems such as cancer or fetal abnormalities. The device separates cells based on sizes and compressibility using high-frequency sound waves to extract exosomes. Using the device, a 0.1-millilitre undiluted blood sample is processed within 25 minutes, said scientists.
short by Gaurav Shroff / 05:29 pm on 20 Sep
Scientists develop flexible, waterproof solar cells
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
Japanese researchers have developed an ultra-thin photovoltaic device, which can continue to provide electricity even after being soaked in water or being stretched and compressed. The prototype had an energy efficiency of 7.9%, which decreased to 7.5% on dipping in water for two hours. Further, the device worked at 80% of its original efficiency even when compressed to nearly half.
short by Gaurav Shroff / 12:30 pm on 19 Sep
NASA shares before and after pictures of islands hit by Irma
short by Gaurav Shroff / on 17 Sep 2017,Sunday
NASA Earth Observatory's photos reveal the aftermath of Hurricane Irma turning the green landscapes of the Caribbean islands into brown. The Category 5 storm hit the Caribbean last week with sustained wind speeds of 185 mph, devastating islands like Barbuda and Saint Martin. Further, Irma caused one of the largest evacuations in US history as it made landfall in Florida.
short by Gaurav Shroff / 01:13 pm on 17 Sep
Moon covers 3 planets, 2 asteroids, 1 star in a single day
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
The Moon on Monday occulted three planets: Mars, Venus and Mercury, two asteroids, and a star named Regulus within 24 hours, according to the US Naval Observatory. When the Moon blocks the view of a celestial body besides the Sun, it's called an occultation. Notably, the alignment involving the Moon, three planets and Regulus happens only once every 28 years.
short by Gaurav Shroff / 10:07 am on 19 Sep
Media shouldn't cherry pick climate science: Neil deGrasse
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
Astrophysicist Neil deGrasse Tyson in an interview said lawmakers and media "cherry pick" scientific papers to reinforce political ideals on climate change. Tyson asserted making policies based on few papers that downplay human-induced climate change is "simply irresponsible". Highlighting recent hurricanes, he feared if climate change discussion is delayed, it might become impossible to recover.
short by Gaurav Shroff / 07:38 pm on 19 Sep
Star found to spin at 320 km/sec, near to 'breaking-apart'
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
Australia-based scientists have found a star named Regulus, about 79 light-years away, spins at about 320 kilometres per second. The spin rate is 96.5% of the angular velocity for the break-up, said scientists. Further, it is the first observed to emit polarised light, a phenomenon predicted for rapidly-rotating stars by Indian astrophysicist and Nobel laureate Subrahmanyan Chandrasekhar in 1946.
short by Gaurav Shroff / 01:00 pm on 20 Sep
Body's 'bad fat' could be altered to combat obesity: Study
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
US-based scientists experimenting on lab mice have found a way to transform unhealthy "white" fat into calorie-burning "beige" fat. By blocking a specific protein, scientists turned "white" fat, usually found around hips and thighs, into a healthier halfway stage between "brown" fat, located in necks and shoulders, which generates heat by burning calories, thus reducing weight gain.
short by Gaurav Shroff / 03:04 pm on 20 Sep
Snow leopard taken off 'endangered' list after 45 years
short by Gaurav Shroff / on 17 Sep 2017,Sunday
The International Union for Conservation of Nature (IUCN), has taken snow leopard off the "endangered" list, where it was included in 1972. In the new assessment, IUCN has placed the animal under the less-threatened "vulnerable" category. To be considered endangered, species need to have global populations of fewer than 2,500 adults with a decline rate of 20% over 16 years.
short by Gaurav Shroff / 11:20 am on 17 Sep
96-year-old becomes oldest person to get robotic gastrectomy
short by Sonu Kumari / on 20 Sep 2017,Wednesday
A 96-year-old man has become the oldest person to get a part of his stomach removed through robotic surgery in a procedure called robotic gastrectomy in a Bengaluru hospital. The man had a cancerous tumour which had caused a block in his stomach. Notably, the amount of tissue violated in robotic surgery is less when compared to an open surgery.
short by Sonu Kumari / 10:15 am on 20 Sep
Nanobot made of single DNA strand can sort molecules
short by Gaurav Shroff / on 17 Sep 2017,Sunday
Caltech scientists have developed a "robot" using a single strand of DNA, that can "walk" around a surface, pick up molecules and drop them off in designated locations. The molecular prototype successfully sorted six fluorescent molecules into correct places in 24 hours. The bots could be used for delivering drugs when a specific signal is given in bloodstreams, said researchers.
short by Gaurav Shroff / 04:33 pm on 17 Sep
August 2017 was the second warmest August on record: NASA
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
August 2017 was the second warmest August in 137 years of record keeping, according to a monthly analysis of global temperatures by NASA. While August 2016 was the hottest, this year's August was 0.85 ºC warmer than the mean August temperature from 1951-1980. The analysis was assembled from publicly available data acquired by about 6,300 meteorological stations around the world.
short by Gaurav Shroff / 11:09 am on 20 Sep
Astronaut makes balloon pets as kids ask about pets in space
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
NASA astronaut Randy Bresnik, aboard the International Space Station, made balloon animals in response to his kids asking if he had any pets in space. Bresnik tweeted, "What do you do when your 7 and 11 year-old children ask you if you have pets in space?...you make them of course!". The former NASA Aquanaut is in space since July 2017.
short by Gaurav Shroff / 07:35 pm on 19 Sep
New chemical removes radioactive elements from nuclear waste
short by Gaurav Shroff / on 17 Sep 2017,Sunday
A US-based team has engineered molecules that extract radioactive elements from nuclear waste, helping in long-term storage of such waste. The chemical consists of a star-shaped lattice of carbon and nitrogen atoms with an empty centre. This shape causes negatively charged molecules like phosphates and nitrates to separate from their nuclear host and get trapped in the chemical's empty centre.
short by Gaurav Shroff / 03:42 pm on 17 Sep
Nanosat fleet proposed for voyage to 300 asteroids
short by Gaurav Shroff / on 20 Sep 2017,Wednesday
A fleet of 50 tiny spacecraft could visit over 300 asteroids in around three years, according to a mission concept proposed by Europe-based researchers. The 5-kg satellites, tethered to a main spacecraft, would be propelled by solar wind. They would flyby their target asteroids at a range of around 1,000 kilometres, imaging their surface with a resolution of 100 metres.
short by Gaurav Shroff / 12:36 pm on 20 Sep
Planet 9 formed around Sun, not captured from outside: Study
short by Gaurav Shroff / on 19 Sep 2017,Tuesday
Switzerland and UK-based researchers have claimed the yet undiscovered Planet Nine on solar system's edge was likely formed around the Sun, dismissing an earlier study which claimed it was captured from another planetary system. On simulations relating to the capture of free-floating planets, scientists found only 5-10 out of 10,000 planets could have an orbit like that of Planet Nine.
short by Gaurav Shroff / 04:12 pm on 19 Sep
2,000-year-old mummified warrior's face revealed in UK
short by Gaurav Shroff / on 17 Sep 2017,Sunday
After almost 2,000 years, the face of a Siberian warrior's mummified head, which was concealed by a clay mask, has been revealed. The exhibit shows a pierced ear, a hole in the skull, and a stitched wound running from eye to the jaw. The exhibition named 'Scythians: Warriors of Ancient Siberia' is on display at the British Museum in London.
short by Gaurav Shroff / 05:36 pm on 17 Sep
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