General Awareness

SCIENCE & TECHNOLOGY - June 2017

Jun 2017

Nov 28, 2019

Researchers Develop Portable Device to Screen Cervical Cancer

Researchers at the Indian Institute of Technology (IIT) Mandi in collaboration with Bengaluru-based Aindra Systems developed an artificial intelligence-powered point-of-care device to screen for cervical cancer by analysing microscopy images.
The research was undertaken by a team led by Anil Sao and Arnav Bhavsar, professors at IIT Mandi along with research scholars -Srishti Gautam and Krati Gupta. The team, along with the industry collaborators, developed AI-based algorithms that enable the device to undertake automatic screening for cervical cancer.
The difference between a conventional system and Aindra's point-of-care system is that, the latter is portable and can be taken to the potential patients. In the conventional system, the people have to visit the pathology laboratory to get themselves screened.

India's Cartosat-3 and 13 Nano Satellites Put in Orbit

India's Polar Satellite Launch Vehicle-XL (PSLV-XL) rocket carrying advanced earth observation satellite Cartosat-3 and 13 US nano satellites lifted off from the second launch pad.
CARTOSAT-3, which is the ninth in the series, was launched from the second launch pad at Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota. This was the 74th launch vehicle mission from Sriharikota.
CARTOSAT-3 is the highest resolution civilian satellite. ISRO has 13 missions up to March 2020- 6 large vehicle missions and 7 satellite missions.
CARTOSAT-3 is a third-generation agile satellite with high-resolution imaging capabilities.
The satellite will replace the IRS series, according to Isro. The CARTOSAT-3 has a panchromatic resolution of 0.25 metres, which helps it conduct satellite imaging with the highest resolution. The space research organisation said this mission is a huge leap from the previous payloads in the CARTOSAT series.

Nov 27, 2019

Cartostat-3 is Most Advanced Satellite Developed in India

Chairman of the Indian Space Research Organisation (ISRO) K. Sivan termed Cartostat-3 the most complex and advanced satellite India has ever developed.
It is also the satellite with the highest-ever resolution that the ISRO has developed till date.
Mr. Sivan said that the 26-hour countdown for the launch of PSLV-C47, which will carry the Cartostat-3 as well as 13 other customer satellites, has brgun.
Cartostat-3 is mainly an earth observation satellite, which will provide various spatial, spectral and temporal data for various fields including urban planning, agriculture, water resource management, environment and disaster management.

Nov 26, 2019

Researchers Report First Recording of a Blue Whale's Heart Rate

The largest heart on earth — a 400-pound blood-pumping machine — beats about 13 times a minute.
That's according to scientists' first recordings of the heart of a blue whale. The research team documented the rhythms thanks to a few suction cups that kept a heart rate monitor attached to a whale swimming and diving around California's Monterey Bay.
This is the first heart rate recording of any wild large whale, and the biggest one to boot: Blue whales are the largest animals ever known to have lived on Earth. And the recordings might hint at a biological limit for heart size in mammals. Based on their recordings, the researchers believe blue whales' hearts might be just about as big as they come.

Nov 25, 2019

NASA's Alien Hunter Rover in Antarctica

NASA scientists are dropping an upside-down underwater rover into the icy oceans of Antarctica. The robot, Buoyant Rover for Under-Ice Exploration (BRUIE), is a prototype of the rover that could search for life in frozen alien oceans. It's part of NASA's plans to explore the secret oceans of two distant icy moons, Europa and Enceladus. NASA plans to launch the next spacecraft to Europa in 2025. NASA began testing an alien-hunting underwater rover in Antarctica. Instead of relying on its weight to keep it on the ground, BRUIE relies on buoyancy to keep it afloat.

Insta's 'Close Friends' on FB Soon

Facebook is going to add one of Instagram's favourite features, 'Close Friends', — to the main app. The feature was added as a built-in privacy tool that let users choose to share content to only a select few. The feature was first spotted inside Messenger by reverse engineering master and frequent tipster Jane Manchun Wong. Instagram made a single Close Friends list with a dedicated button for sharing.

Nov 24, 2019

NASA's Infrared Analysis Of Tropical Storm Sebastien Sees Wind Shear

Tropical Storm Sebastian continued to move in a northeasterly direction through the North Atlantic Ocean as NASA's Aqua satellite passed overhead. Infrared imagery from an instrument aboard Aqua revealed very high, powerful storms with very cold cloud top temperatures in the southwestern quadrant of the storm. It also revealed that the storm was being sheared apart by outside winds.
Tropical cyclones are made of up hundreds of thunderstorms and infrared data can show where the strongest storms are located. They can do that because infrared data provides temperature information, and the strongest thunderstorms that reach highest into the atmosphere have the coldest cloud top temperatures.

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