Author: Sri Kanth

cat

Hero cat rescues abandoned baby

Masha is a long haired Feline cat who lives in Obninsk city Russia. The cat has saved the life of an abandoned baby boy who was less than 12 weeks. 

Apparently the cat heard the cries of a baby in a cardboard box. The baby was crying because he was cold. So the cat has stepped in to the cardboard box and wrapped itself around the boy to keep him warm. 

Hearing cats loud meows in the morning resident Irina Lavrora rushed there to check if the cat was injured. Then she discovered the baby who was now calm. The baby is now safely handed over to the relevant authorities and is in healthy condition.

Masha is a communal cat who is looked after by the residents of the area and now she’s hailed a hero by the residents for her heroic act. 

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Italian man takes books to rural villages on 3 wheels

Basilicata is a small city in the far south of Italy. In the past this area was very rural and isolated. It was formerly called Lucania. The things have changed now and its a good tourist destination. However some villages in the hills are still isolated.

Antonio La Cava is a retired teacher who worked for about 42 years before retirement. He has decided that he still can do something for the children in his region. He turned his Piaggio Ape in to a small mobile library.

He drives this library to the isolated areas in his region inviting children to donate or borrow books. For these children living in rural areas it may be very difficult to reach a library. For such , what Mr. Cava does is a very useful activity. In his library he visits communities which have less than 1000 people.

He has been doing this service for 10 years now driving through villages, stopping , chatting and offering books to children.

One other special thing is that he carries exercise books in this library. When he meets children in one village he invites them to write the first paragraph of a story in them. Another paragraph will be written by the children of another village. This way creates a story book with less effort and with the contribution of children in all villages. 

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Sony unveils an electric car

Under its Vision S initiative, Sony cooperation unveiled their electric car on Monday.

The car equipped with autonomous driving was introduced by Sony CEO and president Kenichiro Yoshida at at a media preview of Consumer Electronics tradeshow in Las Vegas.

The vehicle has about 30 sensors in and out for object detection. However this version of the electric car does not seem to be fully autonomous like Tesla cars. It has some features such as auto parking and summoning as well as the auxiliary braking . But according to Sony , with the future software updates it may be possible to drive auto pilot. The car also features a 3d high quality sound system for a greater experience.

Sony plans to test the car on the roads by March 2021. However currently they don’t have plans for a mass production of a commercial level.

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Space X launches 60 more satellites to Starlink network

Elon Musks Space X network launched 60 more satellites to its Starlink network. With this 60 , the total satellites in orbit that belongs to Starlink will be 182. Which means, Starlink operates more commercial satellites in orbit than any other company now.

The latest went on a Falcon – 9 rocket which belongs to Space X. The satellites were put in orbit as part of a plan to provide  broadband internet globally through the satellites. The company has permission to launch 12000 satellites according to regulations. But Space X has requested permission for 40000 depending on how the project progresses.

Two more batches of 60 is to be launched before the end of this month.

But this is highly criticized by astronomers worldwide who claim that a large number of artificial objects block their view of the space.

However the Space X believes that the concerns are overstated. The company says that the Starlinks are bright shortly after launch but this is the result of the configuration the satellites adopt as they raise themselves up from an altitude of 290km to 550km. Once in the final orbit the objects should be barely visible. Said the company. They also provided astronomers each satellites coordinates to plan the observations without any obstruction. The latest batch of 60 also had an experimental coating to reduce the reflectivity.

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Mighty Mice return from Space

Genetically enhanced mice were on ISS since December 8th as a part of scientific experiment. The mice were donated by the nonprofit Jackson Laboratory in Maine. They were genetically modified  for muscle growth to experiment the zero gravity effects on human body.

The mice returned to earth on Tuesday in a Space X Dragon capsule which landed in pacific ocean.

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The experiment is called Rodent Research-19 and it researches on myostation and activin, Which are molecular signalling paths of muscle degradation.

During long term space flights, Some astronauts have experienced bone and muscle loss. Experiments like this can help to understand how to manage these kind of problems. Researchers believe that these kind of experiments can help to prevent muscle and brain loss during missions and to  help with recovery efforts after the astronauts return to earth.

The research also helps other patients on earth with the bone and muscle loss conditions on their treatments. This includes muscular dystrophy, osteoporosis and diseases that cause muscle wasting like cancer, heart disease, sepsis and AIDS.

These mice have a muscle mass of two times compared to average mice, so they are called the “Mighty Mice”. 40 female mice were sent to the space station. They will be compared with 40 normal female mice (Unaltered) on earth as a control.

The research knowledge is also to be applied on future Mars and Moon missions.

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Irwin family treated more than 90000 animals during Australian wildfires

Irwin family is a well known family due to their activities related to animal welfare and their Australian Zoo. This is the family of well known Steve irwin who was also known as the “Crocodile hunter”. After his tragic death in 2006, his wife Terry Irwin and his two children continued to operate the zoo.

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Steve Irwin - The Crocodile Hunter

The family has a world class animal hospital at the zoo. They have dedicated the past few weeks on treating rescued animals from the Australian wildfires.

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Rob , Terri and Bindi

“With so many devastating fires within Australia, my heart breaks for the people and wildlife who have lost so much” wrote Bindi Irwin, the daughter of Steve and Terry. The 21 year environmental activist also wrote,”I wanted to let you know that we are SAFE. There are no fires near us @AustraliaZoo or our conservation properties”.

In this Instagram she wrote that they are busier than ever rescuing and treating the animals at the hospital and they have treated more than 90000 animals.

She captioned a photo of herself standing in front of a photo of her father and grandmother together. “My parents dedicated our Australia Zoo Wildlife Hospital to my beautiful grandmother,We will continue to honour her by being Wildlife Warriors and saving as many lives as we can.” she wrote.

Bindis brother Robert also posted about the rescue efforts. According to him the 90000th patient of the hospital is a platypus named “Ollie”.

Over the last 16 years, the hospital has provided 24/7 wildlife rehabilitation and an incredible animal rescue service. We’re so proud of this world-class facility! Thank you for your support – with pressures from drought to bushfires, wildlife need our help now more than ever”, he added.

More information about their zoo can be obtained here through their official web site.
https://www.australiazoo.com.au/

 

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Chinese Paddle-fish officially declared extinct

China officially declared that its Paddle-fish has extinct. This species were also known as ‘the Pandas of the Yangtze River’ due to its enormous size which can be up to 22 feet in length. 

Humans destroying their habitats through pollution and urbanization is one cause of this extinction. Another cause is the lakh of reproduction in species. Building of the Gezhouba Dam in 1981 also played a major role in this extinction because it blocked the migration route of the fish. However the main cause seems to be over fishing of the species.

scientists at the Yangtze River Fisheries Research Institute say that this species scientifically known as Psephurus gladius went extinct between  2005 to 2010.

The average length of this species was 10 feet. The species were native to Yangtze River, the longest river in Asia. The team conducted a survey in the river between 2017 to 2018. Over 300 species of fish were found but not a single live specimen of Chinese Paddle-fish. The team also reported another 140 historically reported fish species that were not found, most of which considered highly endangered. 

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A specimen of Psephurus gladius exhibited in the Museum of Hydrobiological Sciences of Wuhan Institute of Hydrobiology

Some extinct species can be resurrected through using gene technologies such as cloning and genome editing. This process is known as de-extinction. But a living tissue of Psephurus gladius has not been conserved anywhere.

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Google AI detects Breast Cancer more accurately than doctors

Google has developed an artificial intelligence system which detects the breast cancer. This systems detection is more accurate than doctors.

This system was developed through collaboration between the tech giant and cancer researchers.

The study which tested the accuracy of this system is published in the Scientific Journal Nature.

To train the system to detect breast cancer, the team used volunteers from UK and US. Early research shows that it can produce more accurate detection than human radiologists or doctors.

According to this research the system also has very low false positives and low false negatives. False positive is wrongfully detecting cancer even when its not present for real. False negative is, not detecting it even when the real thing exists.

Unlike the human radiologists and doctors, this system requires less information to detect cancer. It detects more accurately even if the information such as patients history is not provided.

Professor Ara Darzi, one of the authors of the paper and the director of the Cancer Research Uk Imperial Center has not expected such and impressive result from this system.

Breast cancer is the second leading cause of death for women. The disease can be cured if detected early. Currently even the largest scale breast cancer screening programs in developed countries fail to detect one in five breast cancers according to American Cancer Society.

“The performance of even the best clinicians leaves room for improvement,” the study’s authors wrote in Nature. “AI may be uniquely poised to help with this challenge.”

This technology also can be used as a solution to the shortages in radiologists. The report forecasts that nearly 2000 additional radiologists would be required to close the shortfall in 2023. In places where two radiologists interpret each mammogram, the AI system can replace the second radiologist allowing him to perform another mammogram.

The study was published on Wednesday as a collaboration between Google Health, Cancer Research UK Imperial Center, Northwestern University and Royal Surrey County Hospital.

Source – CNN, Nature

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Scientists say they can move the solar system

As explained by a video in the you tube channel Kurzgesagt, It is theoretically possible to move our entire solar system using a giant mega structure spaceship.

This Stellar Engine uses solar energy and matter to produce energy through nuclear fusion reactors.The energy produced is fired through jets. A Dyson sphere is required to focus a huge energy from sun in to this engine and the engine is placed near the sun to absorb the energy. A second jet fires a stream towards the sun for the purpose of pushing it and to avoid the jet from falling in to the sun.

They call it the “Caplan Thruster”, after Dr.Matthew Caplan who proposed this theory.

But why is this necessary? As you all know our solar system orbits around the center of the galaxy. It may face various threats such as asteroids,giant black holes and supernova explosions throughout its journey. In such cases it will be useful if there’s a way to avoid threats by changing the course. Apart from avoiding such threats, humans can use the whole solar system as a spaceship to explore the universe. Humans can even colonize life supporting planets if they find any in the path while traveling.

At the present our civilizations are not capable of practically using this theory but who knows? We would evolve in to a such civilization in 100 years or thousand years.

Watch the entire video.

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Delhi gets its first smog tower

India’s New Delhi opened its first smog tower today (3rd January 2020). This tower was built through a project which was launched to tackle its smog problem. The tower was inaugurated by the famous Indian cricketer Gautam Gautam Gambhir.

This giant 20ft tall air purifier is installed at south delhi Lajpat Nagar market. According to the experts involved in this project, the aim of building this tower is to reduce particulate matter in the air by 80%. 

Recently Delhi had a high toxic air quality. Air quality indexes named the city as “Severe” in their indexes.

Smog towers work as large scale air purifiers which contain multiple layers of air filters.

However the technology is inspired from China who already use two smog towers. One in the capital city Beijing and the other one in Xi’an city. This one in Xi’an city is the largest in the world.

The Delhi experiment is being headed by the Indian Institute of Technology (IIT) Bombay in collaboration with IIT Delhi. The central pollution control board and the University of Minnesota are involved in the process. The University of Minnesota had earlier helped in the Xi’an project, too.

Some experts however are skeptical about its success. They say that no data has been published any where in the world to prove that these towers serve its purpose.

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Astronauts blood clot treated by doctors on earth

A NASA astronaut who was in a long term mission has developed a blood clot in the  jugular vein partway. NASA called Dr. Stephan Moll, a blood clot expert from the University of North Carolina to get advise on how to treat the Astronaut while he’s in space.

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The name of the astronaut is not revealed yet. However he was in for a mission of six months and discovered this clot after the first two months of his mission. The discovery was made when he got a neck ultrasound scan for a research on how body fluids are redistributed in zero gravity.

This was the first time a blood clot has been found in an astronaut in space, so there were no established methods for treatment in zero gravity.

“Knowing there are no emergency rooms in space, we had to weigh our options very carefully,” Moll said in a UNC statement on Thursday.

Moll and a NASA medical team used Blood Thinners to treat the clot. But how did they get the pharmaceuticals in to the International Space Station? Well NASA keeps a very small amount of medical supplies in ISS and luckily a limited amount of a blood thinner called Enoxaparin (Lovenox®) were available on board.

For 40 days the drug was delivered by an injection in to the skin. After 43 days a supply of Apixaban (Eliquis®) which is an oral pill was delivered to the ISS by a supply spacecraft.

In this treatment period which lasted about 90 days the astronaut performed ultrasound scans of his own neck with the guidance from a radiology team on earth, so they can monitor his blood clot from the earth. Moll also connected and had conversations with him through phone calls and email, Just like his other patients on earth.

“When the astronaut called my home phone, my wife answered and then passed the phone to me with the comment, ‘Stephan, a phone call for you from space.’ That was pretty amazing,” said Moll.“It was incredible to get a call from an astronaut in space. They just wanted to talk to me as if they were one of my other patients. And amazingly the call connection was better than when I call my family in Germany, even though the ISS zips around Earth at 17,000 miles per hour.”

The treatment was stopped before 4 days of astronauts return to the earth. This measures were taken because of possible dangers when entering the earths atmosphere. If any injury occurs during injury, blood thinning may be dangerous.

Now the astronaut is safely on earth and has even stopped treatment, because he does not require treatments now.

Source  : unchealthcare.org

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Why most fish never sink to the bottom of the ocean

Did you ever wonder how fish rise and sink in water?
To understand this first you need to know what forces work underwater. Water is a fluid. Two forces mainly work in an object(in this case the fish) immersed in a fluid. 

  • Downward pull by the gravity
  • Upward thrust by the buoyancy

Force of bouncy is equal to weight of fluid an object displaces when it’s immersed in water. If the buoyancy force is higher than the object’s weight, it will float on water’s surface. However if the object’s weight exceeds the buoyancy force , it will sink to the bottom. When the buoyancy force is exactly the same as the object’s weight, the object has neutral buoyancy and remains at its level.

This means that the density of the object is also important. Objects with higher densities have a higher mass and displaces a low volume of water. In this case the mass to volume ratio is high. if the same volume is displaced through a low density object the mass to volume ratio is low. This way the objects denser than water will sink while objects less dense than water will float.

So in the case of fish, it has to increase the volume without changing the mass to float, or decrease the volume to sink. For this purpose fish have a special organ called the swim bladder.

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Swim bladder from a bony (teleost) fish

The swim bladder is an inflatable organ like the human lung. Fish fills the bladder with oxygen which is gathered from the surrounding water, by using its gills. This way the bladder inflates and the volume is increased, without changing its mass. So the fish floats. when the swim bladder is filled in full capacity the fish floats to the surface. To sink in to the water, fish deflates the bladder and reduces its volume accordingly. To float in an exact level it inflates its swim bladder to a level that displaces an amount of water which weighs the same as its body.

However there are species that do not have a swim bladder. Some fish such as sharks propel using their fins in the same way that an airplane flies.

Various diseases in swim bladder may cause irregularities  such as swimming upside down.

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Swim bladder disease has resulted in this female ryukin goldfish floating upside down
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Canadian Scientists to plant billion trees using drones

In Canada a group of scientists have plans to plant trees cheaply and more quickly using drones. Their target is to plant a billion trees by 2028 ( in 8 years). This is done as a part of an effort to fight against the negative effects of climate change and deforestation.

This group is called the “Flash Forest“. They began testing this in August and were able to plant 100 trees successfully with a single drone.

In September the methods were developed, and they were able to plant 1033 pods using a drone.

In October the methods were further developed and they were able to plant over 2000 trees in three minutes.

According to their web site the current capacity is 100000 seeds per day.

The group says that timber industry has engineered and mastered efficient harvesting technologies, capable of quick clearing with minimal human involvement. Tree planting, on the other hand, still operates with bags and shovels. Flash Forest plans to change that.

They also say that they can plant at 10 times the normal rate and at 20% of the cost of traditional tree planting techniques.Their method is more accurate and precision they say.

Every year our planet loses 13 billion trees and regains less than half of that. We started Flash Forest with one clear goal: healing our planet’s lungs. Until that job is done well, no other job matters.  – Flash Forest

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Scientists transfer data between quantum chips

Scientists at the University of Bristol and the Technical University of Denmark have found a way to transfer data between computer chips through quantum entanglement without using any physical connection. This is the first time anyone has used quantum teleportation successfully , to transfer data between computers. This discovery opens new possibilities on quantum computing and quantum internet they say. The scientists could teleport data from one chip to another at remarkable speeds. So if this technology is used on the internet, the opportunities are unimaginable.

The Scientists could achieve this through the “Quantum entanglement” theories. Quantum entanglement is a label for the observed physical phenomenon that occurs when a pair or group of particles is generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the pair or group cannot be described independently of the state of the others, even when the particles are separated by a large distance.

So theoretically this means that there’s no limit for the distance. By changing properties of one particle, the properties of other particles can be changed accordingly regardless of the distance between them. The team used a pair of such photons in both chips and changed the properties of one chip. These changes were reflected on the partner photon accordingly.

This type of teleportation do not move any matter. Only information is transferred as quantum bits or the basic of quantum information.

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New woman astronaut world record by NASA

NASA’s Christina Koch has set a space record by spending more consecutive days in space than any other female astronaut. As for last Tuesday Koch has been living and working in the International Space Station (ISS) for  292 days.

The previous record for the longest consecutive space flight by a female was held by NASA’s Peggy Whitson. That was 288 days.

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Koch arrived on ISS on March 14, for a 6 month mission. But eventually her mission extended till April 2020 to give scientists a chance to gather data on the effects of long-term spaceflight on astronauts’ health and performance. NASA will be using this data to develop Moon and Mars missions. By the time she heads back to earth the total days spent in space will be 328 days.

Earlier on October Koch made history by joining the first all female space walk with fellow astronaut Jessica Meir. This was to make a broken part in the power network.

 

jessica SUBJECT: Official NASA Astronaut Portrait in EMU – Jessica Meir..PHOTOGRAPHER: Josh Valcarcel


Former record holder Whitson congratulated Koch on Twitter, saying that “records are made to be broken.” How ever she still holds the record for the most cumulative time spent in space, by a US astronaut. She has a total of 665 total days in space by participating in several missions.

The record holder for the most cumulative time in space is a Russian astronaut, Gennady Padalka. He has a total of 879 days in space.

864px-Padalka Gennady Padalka

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Twitter bans Animated PNG

Twitter is a well known social media platform which the users can interact with a mass audience through tweets which can be up to 280 characters. The social media platform has recently banned users from using animated PNG files.

This decision was taken after an attack carried out on the handle and hashtags of the Epilepsy foundation. The attackers sent seizure inducing animated photos to photo sensitive individuals through using the hashtags and the handle of the foundation. 

As the root cause of this issue, Twitter recently found a bug which neglects auto play protection.

Animated PNG files currently in twitter will remain as it is but users will not be allowed to publish new files.

The epilepsy foundation has filed a criminal complaint with US law enforcement. It is said that the attackers posted flashing and strobe lights to trigger seizure in epilepsy sufferers. According to the foundation most people are unaware that they are sensitive to strobe lights until they get a seizure. They claim that this attack is similar to , a person carrying a strobe light into a convention of people with epilepsy and seizures with intentions of harming the participants. 

However it’s not clear how many users got affected, but Twitter has taken this action as prevention. Twitter also added that it will build a similar but better feature in lieu to animated PNG s to enhance the user experience.

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Indian Navy bans usage of Facebook among Navy personnel

After seven personnel were caught leaking sensitive information to the Pakistani Intelligence agencies, Indian Navy has banned the usage of Facebook among naval personnel.

Smart phones are also prohibited in Indian naval bases,dockyards and on-board warships.

10 days back Andra Pradesh Police has unveiled details about a Pakistani spy racket which runs on social media by Pakistani Intelligence Operatives. Seven Indian Navy personnel were arrested in connection to this racket.

It is said that there are “honey traps” run through social media networks and these seven officials fell victims of these honey traps. The ban is imposed to avoid more personnel from falling victims to such honey traps.