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English physician
Natural philosopher
Father of electricity and magnetism
Queen Elizabeth
'De Magnete'
Born on the 24 of May, 1544
England
Studied at St. John’s College, Cambridge
University
Bachelor’s, master’s and doctoral degrees )
Medical practice
Research into both electricity and magnetism
President of Royal College of Physicians in 1600
Physician to Queen Elizabeth I
Died on November 30, 1603
Intrigued by the mystery's that sorounded magnetism
Conducted experiments for about 17 years to better the understanding of the phenomenon of magnetism
Magnetic forces produced circular motions
Discovery of the earth’s magnetic field
Earth had a magnetic core
Centre of the Earth was made up of iron
Two hemispheres
Basic terminology
Gilbert also developed the versorium
Electrical measuring instrument
De Magnete
For 200 years was the most important thesis on the subject of magnetism
Loadstone does not attract iron with equal force at every point
For the loadstone has points
Nearest the poles are the stronger
explained how a compass works
Needle has polarised ends of opposite forces
verticity
Metal can be magnetically charged by a magnet
Magnetism can impact the weight of metals
Five types of magnetic movements
“These movements are attractions of homogenous parts toward one another or toward the Main conformation of the whole earth"
COITION (commonly called attraction)
• an impulsion to magnetic union; DIRECTION towards the earth’s poles
• verticity of the earth toward determinate points in the universe and the standstill there VARIATION
• deflection from the meridian-this we call a perverted motion
• Declination (inclination or dip), a descent of the magnetic pole beneath the horizon
• circular movement or REVOLUTION