Coimbatore Blog

Pragyan (Sanskrit: प्रज्ञान, romanized: prajñāna, lit. wisdom Pronunciation was the rover of Chandrayaan-2 and is the rover for the Chandrayaan-3 mission, two lunar missions developed by the Indian Space Research Organisation (ISRO), Chandrayaan-2 launched on 22 July 2019.

Pragyan was destroyed along with its lander, Vikram, when it crash-landed on the Moon on 6 September 2019 and never got the chance to deploy. The launch of Chandrayaan-3 occurred on 14 July 2023, at 2:35 pm IST, and landed on the Moon on 23 August 2023.

The 26kg rover called Pragyaan (the Sanskrit word for wisdom) was carried to the Moon in the Vikram lander's belly.

It was landed on Moon 23/08/2023 at 6.04pm.
After landing 24/08/2023, panels on one side of Vikram opened to deploy a ramp to enable Pragyaan to slide down to the lunar surface.

It will now roam around the rocks and craters, gathering crucial data and images to be sent back to Earth for analysis.

Pragyaan is carrying two scientific instruments which will try to find out what minerals are present on the lunar surface and study the chemical composition of the soil.

Pragyaan will communicate only with the lander which will send the information to the orbiter from Chandrayaan-2 - which is still circling the Moon - to pass it on to the Earth for analysis.

The World Health Organisation has a new naming system, using the Greek alphabet, for coronavirus variants of concern. The Delta variant was previously known as the “Indian variant”, as it was first found in India. It's one of three sub-lineages of the Indian variant, and is also known as B.1.617.

"UK variant" B.1.1.7 and "South African variant" B.1.351, the "Indian variant" B.1.617 is another variation of the virus that causes COVID-19. the variant was first identified in Maharashtra, India, in October,and spread to more than 40 other countries, including Australia.

CORONO -DELTA VS Covaxin

A study by researchers from the National Institute of Virology in Pune, the Indian Council of Medical Research and vaccine manufacturer Bharat Biotech has found that Covaxin is effective against the Beta and Delta variants of Covid-19.

CORONO -DELTA VS Covishield

A preliminary study conducted by the All India Institute of Medical Science (AIIMS) Delhi claimed that the presence of COVID-19 Delta variant (B1.617.2) is predominantly found even after getting a single dose or both doses of COVID-19 vaccine.

The study included 63 people who got breakthrough infections; of which 36 patients received two doses, while 27 had received one dose of vaccine.

236 million doses of the COVID vaccine have been given in India. More than 45 million people have received 2 doses of the vaccine and are considered fully vaccinated.

A startup in Chennai, Tamil Nadu has devised an innovative plan using technology to reduce the risk of sanitation workers getting exposed to deadly novel coronavirus, or Covid-19.

The four-year-old startup Garuda Aerospace, said to be pioneers in using drones for agricultural purposes, has devised a plan to use drones to spray disinfectant.

The Tamil Nadu government, approving the innovative plan, on March 23 sent out the first drone which disinfected Rajiv Gandhi Government General Hospital in Chennai.

"Novel coronavirus is tightening its grip over India. Doctors and healthcare personnel are irreplaceable. They always have been. So, to protect them from the risk of contracting the virus, we took help of technology to serve them better," founder and president of Garuda Aerospace Agnishwar Jayaprakash said.