Science and Technology finds a lot of importance in the exams that are conducted by various Government authorities. Aspirants of UPSC Civil Services, SSC and NDA, CDS etc would be aware of the importance of Science and Technology. Listed below are all the important events that have happened over the past week in this field. Know all about the latest developments and inventions in the past week here.
DRDO's Air Independent Propulsion (AIP) System
- Due to DRDO's latest inventions the submarines can stay in submerged state for longer hours.
- Air Independent propulsion test also makes the subsurface platform deadlier by decreasing the noise levels it makes while travelling making it hard to detect.
Significance:
- The AIP technology would make the Indian submarines more lethal.
- It would also help them avail the advantage of internal refraction that rises in the equatorial waters due to differences in temperatures within the ocean and on the surface.
- This technology is only available with the US, France, China, UK and Russia and now with India.
Who has developed AIP technology?
The system is being developed by Naval Materials Research Laboratory (NMRL) of DRDO.
Some Facts about AIP:
- DRDO’s AIP technology is based on a Phosphoric Acid Fuel Cell. All AIP fitted submarines do not have to surface for charging their batteries and can thus remain underwater for a longer duration.
- The marine propulsion technology allows many non nuclear submarines to function without accessing the atmospheric oxygen
- AIP equipped submarines are called SSP while the diesel attack submarines are called SSK
GISAT-1:
India would be launching the Geo Imaging Satellite, GISAT 1 on March 28, 2021.
It is a series of satellites with the first satellites named GISAT 1 and next being GISAT 2.
These are earth observatory satellites (EOS-03)
The satellite weighs 2268 kgs and is the first state of the art agile Earth observation satellite
It would be placed in a Geosynchronous Transfer Orbit by GSLV-F10 and would then be positioned in the geostationary orbit which is almost 36000 kilometres above the Earth's surface over the equator.
Significance and Uses:
It would provide near real-time imaging of the large area of the Indian subcontinent timely
This satellite will be helpful for quick monitoring of natural disasters or any short-term events/ episodes
It would also help in disaster management by issuing regular warning, cloud properties, snow and glacier and oceanography
It would help obtain spectral signatures of agriculture, forestry, mineralogy etc.
Some Notable Topics that need Revision:
| Topic | Explanation |
| Solar Heated Tent | Sonam Wangchuk has built a portable military tent that can be heated through solar panels and can seat 10 jawans at a time. Some Major Topics that need revision: The front end of the tent is called the Greenhouse section, which uses solar energy to be heated. It is not more than 30 kgs in weight and is specifically made portable keeping in mind the mountain tops and heights the soldiers have to walk.The rear end has a sleeping chamber in which the soldiers can sleep during the nights |
| Stethoscope | It is an acoustic medical device used for listening to the internal sounds of an animal or human body. It is the most commonly used medical device. |
| Carbon Footprint | A carbon footprint is the measure if the impact created by people's activities on the amount of CO2 generated by buring of fossil fuels. It is expressed in terms of weight of carbon dioxide in tonnes. |
| PiMo | IIT Madras’ nurtured startup Pi Beam has recently launched an electric two-wheeler (e- bike) named PiMo. This vehicle stands between an electric bicycle and entry-level electric scooter. |
| Koo App | It is like Twitter, that is a microblogging site. It is used to express views and opinion on various topics. The app supports multiple Indian regional languages. The App along with the other Made in India applications like Zoho and Chingari- won the challenge. |
| SKAO | Square Kilometre Array observatory is an intergovernmental organisation which is new and dedicated to radio astronomy. It is headquartered in the UK |
.jpg "Science and Tech Weekly Brief: All major updates from February 6-12, 2021")
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