#history The battle in which Cholas ravaged a Chera town in Kanniyakumari. The discovery of a Chola period epigraphy a near Chengam proves without doubt that Salai was an army training centre run by the Cheras. Udagai is the present day Udayagiri, where stands a huge fort constructed in the 18th Century by Eustachius de Lannoy, a Portuguese soldier, who later became the chieftain of the Travancore army after his defeat in the battle of Colachel. Kalingathu Parani (a literary work) also makes a reference to Raja Raja’s role in the war and how he returned to his country with a lot of elephants from Udagai. Pazhuvettaraiyars were advisers of the Chola Kings.
#culture Yerukula Tribe: Andhra Pradesh. Stuartpuram derives it’s name from Its name from Harold Stuart, a British civil servant who served as Home Minister in the early 1900s.
#geography The Congo Basin spans across six countries:
Cameroon, Central African Republic, Democratic Republic of the Congo, Republic of the Congo, Equatorial Guinea and Gabon.
#mnemonic CAR-C-DRC-RC-EG-G.
Cameroon, Central African Republic, Democratic Republic of the Congo, Republic of the Congo, Equatorial Guinea and Gabon.
#mnemonic CAR-C-DRC-RC-EG-G.
#technology OSIRIS-REx is a NASA asteroid-study and sample-return mission. The mission's primary goal is to obtain a sample of at least 60 g from 101955 Bennu, a carbonaceous near-Earth asteroid, and return the sample to Earth for a detailed analysis.
#international Wildfires at Dadia National Park in the region of Evros, Greece. RescEU: Disaster.
#technology CE-20: Developed by the Liquid Propulsion Systems Centre (LPSC), a subsidiary of ISRO. The cryogenic stage is technically a very complex system due to its use of propellants at extremely low temperatures and the associated thermal and structural problems.
It uses liquid fuels (Oxygen liquifies at -183 deg C and Hydrogen at -253 deg C) that are cooled to very low temperatures. A Cryogenic rocket stage is more efficient and provides more thrust for every kilogram of propellant it burns compared to solid and earth-storable liquid propellant rocket stages.
It uses liquid fuels (Oxygen liquifies at -183 deg C and Hydrogen at -253 deg C) that are cooled to very low temperatures. A Cryogenic rocket stage is more efficient and provides more thrust for every kilogram of propellant it burns compared to solid and earth-storable liquid propellant rocket stages.