The United States has the most tornadoes of any country, nearly four times more than estimated in all of Europe, excluding waterspouts. This is mostly due to the unique geography of the continent. Nor ...
The word tornado is an altered form of the Spanish word tronada, which means "thunderstorm". This in turn was taken from the Latin tonare, meaning "to thunder". It most likely reached its present form ...
There are many different types of volcanic eruptions and associated activity: phreatic eruptions (steam-generated eruptions), explosive eruption of high-silica lava (e.g., rhyolite), effusive eruption ...
The term tsunami comes from the Japanese 津波, composed of the two kanji 津 (tsu) meaning "harbour" and 波 (nami), meaning "wave". (For the plural, one can either follow ordinary English practice and ...
The Goldau on September 2, 1806The Cap Diamant Québec rockslide on September 19, 1889Frank Slide, Turtle Mountain, Alberta, Canada, on 29 April 1903Khait landslide, Khait, Tajikistan, Soviet Union, o ...
Etymology and usage The English word typhoon originates from the Japanese word (台風, pronounced taifū). Other possible, but incorrect, theories include that it could have originated from Persian ? ...
In addition to tropical cyclones, there are two other classes of cyclones within the spectrum of cyclone types. These kinds of cyclones, known as extratropical cyclones and subtropical cyclones, can b ...
Tropical cyclones that cause extreme destruction are rare, although when they occur, they can cause great amounts of damage or thousands of fatalities. The 1970 Bhola cyclone is the deadliest tropical ...
Tropical cyclones are areas of relatively low pressure in the troposphere, with the largest pressure perturbations occurring at low altitudes near the surface. On Earth, the pressures recorded at the ...
There are a number of structural characteristics common to all cyclones. A cyclone is a low-pressure area. A cyclone's center (often known in a mature tropical cyclone as the eye), is the area of lowe ...
In history there are trends in building materials from being: natural to becoming more man-made and composite; biodegradable to imperishable; indigenous (local) to being transported globally; repairab ...
The metric system of measure was first given a legal basis in 1795 by the French Revolutionary government. The law of 18 Germinal, Year III (7 April 1795) defined five units of measure:The metre for l ...
The term "ecosystem" was first used in a publication by British ecology Arthur Tansley. Tansley devised the concept to draw attention to the importance of transfers of materials between organisms and ...
"Pharmaceutical" derives from the Greek pharmakeutikos (from pharmakeutēs 'druggist', from pharmakon 'drug').Classification Pharmaceutical or a drug is classified on the basis of their origin.Drug fr ...
Many cultures have a recognizable cuisine, a specific set of cooking traditions using various spices or a combination of flavors unique to that culture, which evolves over time. Other differences incl ...
