ANSWER: C
Why in news ?
European Space Agency (ESA) will launch world’s first wooden satellite called WISA Woodsat in Earth’s orbit by the end 2021.
WISA Woodsat
It will be launched to test the applicability of wooden materials such as plywood in spacecraft structures. Mission will expose wooden materials to extreme space conditions like heat, cold, vacuum and radiation. Wooden satellite will be launched to space by end of 2021 with a Rocket Lab Electron rocket. It will be launched from Mahia Peninsula launch complex in New Zealand. Satellite has been designed and built in Finland.
Features of satellite
Satellite will orbit at around 500-600 km altitude in polar Sun-synchronous orbit. It is a10x10x10 cm nano satellite which was built up using standardised boxes and surface panels of plywood, which is usually found in hardware store and are used to make furniture. Wood have been placed in a thermal vacuum chamber to keep dry when it is in space. Thin layer of aluminium oxide has been applied to it to minimise vapour coming from wood and to protect it from erosive effects of atomic oxygen. The non-wooden external parts of satellite are corner aluminium rails which will be used for its deployment into space and a metal selfie stick.
ANSWER: B
Why in news ?
While speaking at UN Trade Forum 2021, Union Minister Piyush Goyal has said, India’s per-capita carbon dioxide emission is lowest amongst big economies.
About:
UN Trade Forum was established as a space for dialogue on how trade can be harnessed to get a prosperous, inclusive and sustainable world.
ANSWER: D
Why in news ?
Stockholm International Peace Research Institute(SIPRI) has released the SIPRI Yearbook 2021. The report assesses the current state of armaments, disarmament and international security.
About:
ANSWER: C
Why in news ?
The first commercial consignment of Geographical Indications (GI) certified Jardalu mangoes from Bhagalpur; Bihar was exported to the United Kingdom.
About:
ANSWER: B
Why in news ?
ANSWER: A
Why in news ?
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