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Gresham College: Over four
centuries of adult education
Raymond Flood
ALM-23, Maynooth
Wednesday 6th July 2016
Sir Thomas Gresham (1519-79)
Sir Thomas Gresham, 1544
(aged 26)
Sir Thomas Gresham, 1565-70
(aged 46-50)
Career
• Employed on Business abroad; trading in gunpowder for Henry VIII
• Royal agent for Edward VI, then Mary I
• Raising loans and negotiating interest for the Crown; saved Crown from bankruptcy by application of ‘Gresham’s Law’
• Continued under Elizabeth I (1558). Knighted in 1559
• Built Royal Exchange 1565
• Died in 1579 and left his estate for benefit of the City of London
The Will: the Corporation
I Will and Dispose that one Moiety.. shall be unto the Mayor and Commonalty and Citizens of London … and the other to the Mercers … and from thence, so long as they and their Successors shall by any means or title have hold or enjoy the same , they and their successors, shall give and distribute, to and for the sustenation, maintenance and Finding Four persons, from Tyme to Tyme to be chosen, nominated and appointed …. And their successors to read the Lectures of Divinity, Astronomy, Musick and Geometry…
The Will: the Corporation
I Will and Dispose that one Moiety.. shall be unto the Mayor and Commonalty and Citizens of London … and the other to the Mercers … and from thence, so long as they and their Successors shall by any means or title have hold or enjoy the same , they and their successors, shall give and distribute, to and for the sustenation, maintenance and Finding Four persons, from Tyme to Tyme to be chosen, nominated and appointed …. And their successors to read the Lectures of Divinity, Astronomy, Musick and Geometry…
The Mercers were responsible for the appointment of the other
three original professorships in Law, Physic (Medicine) and
Rhetoric.
Dr. Valerie Shrimplin, Academic Registrar of Gresham College
… an important fact for the history of science in England is that the Chairs for Astronomy and Geometry at Gresham were the first Chairs in those subjects at any English university. In choosing these subjects, Thomas Gresham appeared to have clearly understood and recognised their importance as separate disciplines in scholarship, many years earlier than either Oxford or Cambridge, where they continued to be studied only as part of a broader classical curriculum. Gresham recognised the importance of applying in practice the knowledge gained from theoretical study. In astronomy for example, the emphasis was on its use for mariners in navigation and geography generally.
10 Andrew Tooke 1704
11 Thomas Tomlinson 1729
12 George Newland 1731
13 William Roman 1749
14 Wilfred Clarke 1759
15 S Kittleby 1765
16 Samuel Birch 1808
17 Robert Pitt Edkins 1848
18 Benjamin Morgan Cowie 1854
19 Karl Pearson 1890
20 William Henry Wagstaff 1894
1939–45 Lectures in abeyance
21 Louis Melville Milne-Thomson 1946
22 Thomas A A Broadbent 1956
23 Sir Bryan Thwaites 1969
24 Clive W. Kilmister 1972
25 Sir Christopher Zeeman 1988
26 Ian Stewart 1994
27 Sir Roger Penrose FRS 1998
28 Harold Thimbleby 2001
29 Robin Wilson 2004
30 John D. Barrow 2008
31 Raymond Flood 2012
1 Henry Briggs 1596
2 Peter Turner 1620
3 John Greaves 1631
4 Ralph Button 1643
5 Daniel Whistler 1648
6 Laurence Rooke 1657
7 Isaac Barrow 1662
8 Arthur Dacres 1664
9 Robert Hooke 1665
Gresham Professors of Geometry
Henry Briggs Logarithms
log10 1 = 0 and log10 10 = 1.
Then to multiply two
numbers one simply added
their logarithms.
log10 ab = log10 a + log10 b
Karl Pearson
1857 - 1936
Charles Darwin
1809 - 1882
10 Andrew Tooke 1704
11 Thomas Tomlinson 1729
12 George Newland 1731
13 William Roman 1749
14 Wilfred Clarke 1759
15 S Kittleby 1765
16 Samuel Birch 1808
17 Robert Pitt Edkins 1848
18 Benjamin Morgan Cowie 1854
19 Karl Pearson 1890
20 William Henry Wagstaff 1894
1939–45 Lectures in abeyance
21 Louis Melville Milne-Thomson 1946
22 Thomas A A Broadbent 1956
23 Sir Bryan Thwaites 1969
24 Clive W. Kilmister 1972
25 Sir Christopher Zeeman 1988
26 Ian Stewart 1994
27 Sir Roger Penrose FRS 1998
28 Harold Thimbleby 2001
29 Robin Wilson 2004
30 John D. Barrow 2008
31 Raymond Flood 2012
1 Henry Briggs 15967
2 Peter Turner 1620
3 John Greaves 1631
4 Ralph Button 1643
5 Daniel Whistler 1648
6 Laurence Rooke 1657
7 Isaac Barrow 1662
8 Arthur Dacres 1664
9 Robert Hooke 1665
Gresham Professors of Geometry
Sir Christopher Zeeman
Sir Roger Penrose
Ian Stewart
Harold Thimbleby
Robin Wilson
John Barrow
Current Gresham Professors
www.gresham.ac.uk
• Background of the audience
• Expectations of
– The audience
– Me!
• Accessibility
– Assume little technical familiarity
– Assume little notational familiarity
– Use History
– Take a visual approach where possible
Accessibility
• Selection of lecture topic
• Visual aids
• Computer simulations
• Modelling the world
• Proof or framework
Shaping Modern Mathematics
Applying Modern Mathematics
Great Mathematicians, Great Mathematics
Great Mathematicians, Great Mathematics
Accessibility
• Selection of lecture topic
• Visual aids
• Computer simulations
• Modelling the world
• Proof or framework
Isaac Newton’s memorial in Westminster Abbey
From Newton’s A Treatise of the System of the
World
Gottfried Leibniz
1646 - 1716
First appearance of the Integral sign, ∫
on October 29th 1675
d (or dy/dx) notation for differentiation:
∫ notation for integration:
Leibniz notation
Memorials
Accessibility
• Selection of lecture topic
• Visual aids
• Computer simulations
• Modelling the world
• Proof or framework
Symmetric random walk
1/2
1/2
At each step you move one
unit up with probability ½ or
move one unit down with
probability ½.
An example is given by tossing
a coin where if you get heads
move up and if you get tails
move down and where heads
and tails have equal probability
Coin Tossing
Law of long leads or arcsine law
• In one case out of five the path stays for about
97.6% of the time on the same side of the axis.
Law of long leads or arcsine law
• In one case out of five the path stays for about
97.6% of the time on the same side of the axis.
• In one case out of ten the path stays for about
99.4% on the same side of the axis.
• A coin is tossed once per second for a year.
– In one in twenty cases the more fortunate player is in
the lead for 364 days 10 hours.
– In one in a hundred cases the more fortunate player is in
the lead for all but 30 minutes.
Accessibility
• Selection of lecture topic
• Visual aids
• Computer simulations
• Modelling the world
• Proof or framework
The tide predictor
www.ams.org/featurecolumn/archive/tidesIII2.html
Weekly record of the tide in
the River Clyde, at the
entrance to the Queen’s
Dock, Glasgow
William Thomson (1824–1907),
soon after graduating at
Cambridge in 1845. He became
Lord Kelvin in 1892.
Accessibility
• Selection of lecture topic
• Visual aids
• Computer simulations
• Modelling the world
• Proof or framework
Leonhard Euler, 1707–1783Read Euler, read Euler, he is the master of us all!
Portrait by Jakob Emanuel Handmann, 1756
Polyhedra
Comes from the Greek roots, poly meaning manyand hedra meaning seat.
Convex polyhedron has the property that the line joining any 2 points in the object is contained in the polyhedron, or it can rest on any of its faces.
A polyhedron has many
seats – faces - on which it
can be set down
Polyhedra
Convex Non convex
Icosidodecahedron Hexagonal torus
Euler’s formula for convex polyhedra,
V – E + F = 2
V = number of vertices
E = number of edges
F = number of faces
Tetrahedron
V – E + F = 2
Vertices, V = 4
Edges, E = 6
Faces, F = 4
V – E + F = 4 – 6 + 4 = 2
Cube or Hexahedron
V – E + F = 2
Vertices, V = 8
Edges, E = 12
Faces, F = 6
V – E + F = 8 – 12 + 6 = 2
Octahedron
V – E + F = 2
Vertices, V = 6
Edges, E = 12
Faces, F = 8
V – E + F = 6 – 12 + 8 = 2
Dodecahedron
V – E + F = 2
Vertices, V = 20
Edges, E = 30
Faces, F = 12
V – E + F = 20 – 30 + 12 = 2
Icosahedron
V – E + F = 2
Vertices, V = 12
Edges, E = 30
Faces, F = 20
V – E + F = 20 – 30 + 12 = 2
V – E + F
• If we remove an edge and a face at the same
time then number of vertices – number of edges + number of faces
stays the same. Because you are taking away one
less edge but adding on one less face
• Similarly we remove an edge and a vertex at the
same time then number of vertices – number of edges + number of faces
stays the same. Because you are taking away one
less edge but adding on one less vertex.
1: Deform the convex polyhedron into a
sphere
V – E + F left unchanged
2: Remove an edge so as to merge two
faces. Leaves V – E + F unchanged
Remove this edge, so merging the two adjacent faces into one
3: End up with only 1 face and the edges
and vertices forming a graph with no
loops – a treeRemove this edge, so merging the two adjacent faces into one
4: remove a terminating vertex and edge
from the tree.
Leaves V – E + F unchanged
Remove this edge, so merging the two adjacent faces into one
Remove this terminating edge and vertex from the tree
5: As F = 1, E = 0 and V = 1
V – E + F = 2
Remove this edge, so merging the two adjacent faces into one
Remove this terminating edge and vertex from the tree
Picture Source: 17 Equations that Changed the World, Ian Stewart, Profile Books, 2012
In a regular polyhedron all the faces are the same
and the arrangement of faces at each vertex is the
same.
Tetrahedron – four faces
each an equilateral triangle
Cube – six faces, each a
square
Octahedron – eight faces
each an equilateral triangle
Dodecahedron – twelve faces
each a regular pentagon
Icosahedron – twenty faces
each an equilateral triangle
Thank You!