Literally, in order for a vortex to be classified as a tornado, it must be in contact with the ground and the cloud base. Weather scientists haven't found it so simple in practice, however, to classify and define tornadoes (per this essay by Doswell).
Bikini Island, 2015. Credit: Emlyn Hughes. (Phys.org)âA team of researchers from Columbia University in New York has found that all of the Marshall Islands involved in nuclear tests by the U.S. are now habitable, except for Bikini Atoll.
The outer islands of the Seychelles are mostly uninhabited, making it perfect for advanced divers. Several locations in the Seychelles have PADI dive centers (PADI is a diving society for certified Scuba divers.), and several hotels teach diving to beginners and veteran divers.Divers do not have to go to the outer islands for diving, however. The inner islands offer plenty of diving too.everal locations in the Seychelles have PADI dive centers (PADI is a diving society for certified Scuba divers.), and several hotels teach diving to beginners and veteran divers. Divers do not have to go to the outer islands for diving, however. The inner islands offer plenty of diving too.