An earthquake is caused due to the movement beneath the earth’s surface. It is caused by the vibration of rocks and the sudden release of energy in the earth’s interior. When two tectonic plates slip past each other and pressure starts to build up at the edges, vibrations called seismic waves are created. The extent…
Historical Development of Databases Hierarchical Database Model A data model in which data is organized in a top-down, or inverted tree structure with lower level records subordinate to higher-level records A lower level record is called a child and a higher level record is called a parent Each parent record can have many child records,…
Major Technological Advancements: 1837-Morse Code and Telegraph invented by Samuel F.B Morse, extremely important to the progression of communication technology. 1846- Sewing Machine by Elias Howe 1850- Oil refining first used, which is where crude oil is processed into gasoline, diesel, oil and more. 1858- Sewage system invented in London by Joseph Bazalgette. Extremely important,…