Forensicmad Posted July 3, 2006 Share Posted July 3, 2006 Does anyone know? I know that sailors used to use compasses to navigate but does anyone know who actually identified the field surrounding Earth? The person who found out what caused the compasses to actually work in the way they do? Thanks in advance Link to comment Share on other sites More sharing options...
Klaynos Posted July 3, 2006 Share Posted July 3, 2006 http://www.bookrags.com/sciences/sciencehistory/earths-magnetic-field-wsd.html looks like it might be worth a read for you... Link to comment Share on other sites More sharing options...
Forensicmad Posted July 3, 2006 Author Share Posted July 3, 2006 Thank you very much Klaynos. Its exactly what I need Link to comment Share on other sites More sharing options...
Klaynos Posted July 3, 2006 Share Posted July 3, 2006 Google is an amazing tool But np Link to comment Share on other sites More sharing options...
Forensicmad Posted July 3, 2006 Author Share Posted July 3, 2006 *I googled it but all i could find was stuff about the largest one ever found because of 2 neutron stars, or how people were making huge ones. I guess i will just have to look harder. Thanks anyway Link to comment Share on other sites More sharing options...
Rocket Man Posted July 6, 2006 Share Posted July 6, 2006 the magnetic feild of the earth was used for navigation before anyone ever thought of the concept of magnetics. they found minerals rich in magnetite, hung them from strings and got their bearings off that. this was done with the thinking of a flat earth, the rock simply stayed at the same angle relative to the ground. no one could have thought of a magnetoshpere untill they thought of a round earth. you could try googling "history, magnetic, navigation" Link to comment Share on other sites More sharing options...
frostbite Posted July 6, 2006 Share Posted July 6, 2006 hey... i have a question regarding on earth's magnetic sphere. its been quite bugging me ever since i got it in my physics exam. physicists say that the actual north of the earth is actually the south and that the south is actually the north. i don't quite understand it. i'm sorry for the abrupt question. i'll try to get the given question (from my physics teacher) and i'll try to post it next time. i hope i kinda gave you some idea. Link to comment Share on other sites More sharing options...
Klaynos Posted July 6, 2006 Share Posted July 6, 2006 well magnets alway form pairs in the form N--SN--S When you join them together so obosites attract you get a north magnet and float it in water the North is attracted to the norht pole of the earth, therefore it must be a south end of the magnet (the earth) Link to comment Share on other sites More sharing options...
chitrangda Posted July 15, 2006 Share Posted July 15, 2006 when u hold a magnet freely it points to wards the north.this is because earths south is what we call as north and north is what we call as south. we know that opp poles attract and alike poles reppel each other.hence south of the earth attracts the north pole of the magnet and vise versa Link to comment Share on other sites More sharing options...
KaiduOrkhon Posted July 17, 2006 Share Posted July 17, 2006 James Van Allen - discovered the inner - magnetic field -belt in the late '50's. Early satellites proved the outer belt. There is controversy as to when and by whom the outer belt was discovered - via Russian satellite, or American. Link to comment Share on other sites More sharing options...
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