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Unit 1 Goal 1: Unique Planet
Unit 1 Goal 1: Unique Planet

... field.This field extends from the magnetic North Pole to magnetic South Pole and out into space. ...
Exam 1 - cloudfront.net
Exam 1 - cloudfront.net

Plate Tectonics and the Ocean Floor opens with a brief history of
Plate Tectonics and the Ocean Floor opens with a brief history of

Chapter 29 Magnetic Fields Due to Currents
Chapter 29 Magnetic Fields Due to Currents

... use this procedure to compute the force on wire a due to the current in wire b, we would find that the force is directly toward wire b; hence Parallel currents attract each other, and antiparallel currents repel each other. The definition of ampere: the ampere is that constant current which, if mai ...
EMP-Presentation
EMP-Presentation

... varying radius, certain areas on the planet are more susceptible to an EMP attack because of the Greater Strength in the Earth’s Magnetic Field over that area. If We were to be attacked by an EMP This is how it would be described, but EMP isn’t as simple as being used completely for weapons ...
Earth as a System Section 1
Earth as a System Section 1

... – Do now: • Get into groups of three and discuss all you know about Earth. ...
NMR web handout
NMR web handout

... concerned with nuclei having a spin quantum number of 1/2. In particular we are interested in 1H (most common isotope of hydrogen by far) and 13C (rare but useful isotope of carbon, the most common isotope being 12C). Recall from general chemistry that the number 1,12, 13 etc. is the atomic mass, th ...
4 layers of Earth and Plate Activity notes
4 layers of Earth and Plate Activity notes

... • Bottom layer of chocolate- inner core, solid iron and is the hottest layer (almost as hot as sun) ...
The evolution of Life in the History of Earth
The evolution of Life in the History of Earth

... 1. Horizontal deposition of strata 2. Tectonic tilting of strata (this takes millions of years) 3. New horizontal deposition on top ...
There are 180,000 of these per square cm in this photograph
There are 180,000 of these per square cm in this photograph

... ...
Plate Tectonics Earth`s Layers Boundaries Earthquakes Wild Card
Plate Tectonics Earth`s Layers Boundaries Earthquakes Wild Card

... Name the special instrument used to measure seismic waves. ...
Slide 1
Slide 1

... • Focus- center of earthquake beneath Earth • Epicenter- center of earthquake on Earth’s surface • P waves- longitudinal waves like sound waves (accordion), first detected • S waves- transverse waves, can’t travel through liquid • Surface waves- when seismic waves reach Earth’s surface, slower than ...
GEOSPHERE The geosphere is the Earth itself, the rocks, minerals
GEOSPHERE The geosphere is the Earth itself, the rocks, minerals

... interior. Below the crust, which varies from about 5 km beneath the ocean floor to up to 70 km below the land surface, temperatures are high enough for deformation and a paste-like flow. At one time, roughly 200 million years ago, the continents were joined together in a supercontinent called Pangae ...
Name____________________________
Name____________________________

... Continental Crust: Less-dense crust that makes up the continents. Continental Drift: A theory stating that the Earth's continents have been joined together and have moved away from each other at different times in the Earth's history. Pangaea: Single, giant landmass, or continent, that later broke a ...
PHYS 1443 – Section 501 Lecture #1
PHYS 1443 – Section 501 Lecture #1

... section lies along the z axis and the other is along the line y = 2x in the xy plane. A current of 20A flows in the wire – down the z axis and out the line in the xy plane. The wire passes through a uniform magnetic field given by B - .318i T. Determine the magnitude and direction of the total force ...
Earth- information sheet Homework T4 Wk1
Earth- information sheet Homework T4 Wk1

... hemisphere (meaning half of the Earth’s sphere) has winter. At this time the southern hemisphere is tilted very slightly towards the Sun and the southern hemisphere has summer. Winter in Britain means summer in New Zealand. Closer to the Equator there is much less difference between summer and winte ...
Plate Tectonics-1-1
Plate Tectonics-1-1

... How is the theory of plate tectonics different from continental drift? drift is based on the movement of the continents DUE to plate tectonics  Continents are NOT the same as plates  Tectonic plates can be made up of both oceanic crust and continental crust  Continental ...
Long and Short-term Changes in Climate
Long and Short-term Changes in Climate

... Why do Interglacial and Ice Ages happen? Serbian engineer and astronomer Milutin Milankovitch theorized that the ice age cycles occur because the earth’s orbit around the sun changes in 3 main ways: ● Eccentricity: shape of orbit (more or less ...
© UKRIGS Education Project: Earth Science On-Site
© UKRIGS Education Project: Earth Science On-Site

... Fossils provide evidence of how much (or how little) different organisms have changed since life developed on Earth. Chemistry 1a Products from Rocks: Substantive contexts: ...
ch01 (1)
ch01 (1)

... lithosphere and the effect of this movement in forming Earth’s crustal features. Divergent boundaries are places where plates move apart. Convergent boundaries are places where plates move together. Transform boundaries are places where plates glide past one another without converging or diverging. ...
The Earth - Humble ISD
The Earth - Humble ISD

... Although the earth seems like a solid ball, it is really more like a series of shells that float on one another. Core – solid metallic center made of nickel and iron _______________ – soft layer of molten rock (magma) Crust – thin layer of rock on earth’s surface Continental Drift – ________________ ...
Rephrasing Faraday`s Law
Rephrasing Faraday`s Law

... a source of electric field.”3 Similar statements are found in many of the texts that share or have shared the introductory physics market over the years.4 A few texts say that the electric field is “associated with”5 or “accompanied by,”6 rather than “produced by,” the changing magnetic field; howev ...
Discussion on the Theory of the Physiological Effects of the Nikken
Discussion on the Theory of the Physiological Effects of the Nikken

... In magnetic therapy there are basically two well-known types of EMFs. As previously stated they are Pulsed Electromagnetic Fields (PEMF) and Alternating Current or Sinusoidal Electromagnetic Fields (AC EMF). PEMFs are generated by pulsing current through a conductor, normally a coil. This pulsing e ...
Layers of the Earth Power Point Presentation
Layers of the Earth Power Point Presentation

... • The mantle is the largest layer of the Earth. • It is made of hot, dense rock. The rock in the mantle flows like asphalt because of the temperature differences found in the mantle. ...
Fundamentals of Applied Electromagnetics
Fundamentals of Applied Electromagnetics

... 4-2.2 Magnetic Field of a Magnetic Dipole ...
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History of geomagnetism



The history of geomagnetism is concerned with the history of the study of Earth's magnetic field. It encompasses the history of navigation using compasses, studies of the prehistoric magnetic field (archeomagnetism and paleomagnetism), and applications to plate tectonics.Magnetism has been known since prehistory, but knowledge of the Earth's field developed slowly. The horizontal direction of the Earth's field was first measured in the fourth century BC but the vertical direction was not measured until 1544 AD and the intensity was first measured in 1791. At first, compasses were thought to point towards locations in the heavens, then towards magnetic mountains. A modern experimental approach to understanding the Earth's field began with de Magnete, a book published by William Gilbert in 1600. His experiments with a magnetic model of the Earth convinced him that the Earth itself is a large magnet.
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