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Temperature
Temperature is the physical property of a system which underlies the common notions of "hot" and "cold"; the material with the higher temperature is said to be hotter. Physically, temperature is a ... > more -
Shaanxi Earthquake
The Shaanxi earthquake or Hua County Earthquake is the deadliest earthquake on record, killing approximately 830,000 ... > more -
Precession of the equinoxes
The precession of the equinoxes refers to the precession of Earth's axis of rotation with respect to inertial space. The precession of the equinoxes is caused by the differential gravitational forces ... > more -
1928 Okeechobee Hurricane
The Okeechobee Hurricane or Hurricane San Felipe Segundo was a deadly hurricane that struck the Leeward Islands, Puerto Rico, the Bahamas, and Florida in September of the 1928 Atlantic hurricane ... > more -
Hurricane proof building
Tornadoes, cyclones, and other strong winds damage or destroy many buildings. Here are some architectural design ... > more -
Earthquake
An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves. Earthquakes are accordingly measured with a seismometer, commonly known as a ... > more -
Groundwater
Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations. A formation of rock/soil is called an aquifer when it can yield a useable ... > more -
Seismometer
Seismometer are used by seismologists to measure and record seismic waves. By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground ... > more -
1906 San Francisco earthquake
The San Francisco earthquake of 1906 was a major earthquake that struck San Francisco and the coast of northern California at 5:12am on Wednesday, April 18, ... > more
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