Visit: https://a2zcareers.viden.io
Knowledge in Earthquake
Seismograph
Earthquakes are fascinating and frightening at the same time. Have you ever wondered how scientists study these earth-shaking events? They use what's called a seismograph, also called a seismometer, which is an instrument that measures and records seismic waves that move through the earth as the result of an earthquake. A modern seismograph can help scientists detect earthquakes and measure several aspects of the event: The time at which the earthquake occurred The epicenter, which is the location on the surface of the earth below which the earthquake occurred The depth below the earth's surface at which the earthquake occurred The amount of energy released by the earthquake Scientists measure and record this data to learn more about earthquakes, tectonic plates, and Earth's layers. Earthquakes are difficult to predict, but scientists studying them hope to use seismographic measurements to be able to make more accurate predictions. How a Seismograph Works The idea behind a seismograph is fairly simple. A basic seismograph includes a solid base and a heavy weight suspended from a spring over the base. A pen hangs from the weight and a rotating drum with paper sits below it on the base. The tip of the pen touches the drum. When the earth shakes from an earthquake, the drum rotates, and the weighted pen moves back and forth due to the motion of seismic waves. The pen records the movement on the drum. The paper recording of an earthquake is called a seismogram. The most high-tech seismographs used by scientists studying earthquakes today are sophisticated and precise. They are based on the same concept as a basic, simple seismograph, but make use of electronics, magnets, and amplifiers in order to accurately and precisely measure the smallest ripples in the earth caused by earthquakes.
Anil gupta
introduction to the internal structure of the earth
internal structure of earth
leon george
Earthquake
earthquake
Atmosphere of earth
Premium
Learn about the layers of earth's atmosphere fro the notes attatched below. Content below includes topics such as Atmosphere of Earth, Composition, Structure of the atmosphere, Principal layers, Exosphere, etc. The link to the video lecture https://www.youtube.com/watch?v=KMCdVJUxojI
Learn Everyone
Quality of water and water treatment
Quality of water and water treatment
Syed Sadique Hussain
class 11 th articles with example
This PDF consists of articles school leval about English grammar. It covers topics such as sentence structure, verb tenses, and common mistakes. It also provides examples of correct grammar and explains why certain grammatical rules exist. Each article is written in an easy-to-understand manner and includes tips and tricks to help the reader remember the rules. The PDF explains how to use grammar correctly in everyday speech and writing. It is suitable for students at all levels, from beginners to advanced.
Rohit Lodhi