Transcript Peter McOwan

The Maths & Computing Magic
Show
Peter McOwan
Queen Mary, University of London
Tonight....
Maths, Computing &
• Astonishment & classics
of magic!
• The magician’s code!
• ‘secret’ + performance
• Principles to create your
own
Torn and restored card trick
Mind control...
you will all think of the same
card!
More
Shuffling…
Your
card
has
been
torn….
????
Here is how...
The princess card trick
Trick dates back to 1905 and is credited to American magician Henry Hardin
What does it have to do
with your MP3 player?
Mp3 coding for music
Masker
Masked
Sounds
Brain Experiments!
Eyes & seek app
www.qappsonline.com
The Piano Trick
(aka the invisable palm)...
The Piano Trick
• Algorithm and user interface
• Secret 7+1 =8
• Simple algorithm hidden in Misdirection!
The importance of
understanding humans…
The perfect shuffle
Brett Morris – PhD computer memory patent
Body language experiment...
Algebra- Lets call them...
R0
R1
B1
B0
R2
B2
R0
R1
B1
R0+R1+R2(26 reds)
B0+B1+B2(26 blks)
B0
R2
B2
R0 = R1+B1
B0 = R2+B2
(R1+B1)+R1+R2=(R2+B2)+B1+B2
2R1+B1+R2=R2+B1+2B2
R1=B2
Classic of magic…
Cutting a person in 0.5
First Public sawing-P T Selbit 1921
(Stage name of Percy Thomas Tibbles )
Finsbury Park
13 People
12 People
How is it done?
Watch the heights as 12- 13!
Research Questions….
•How big a change can we make for it to still
be ‘invisible’ to the audience?
•Does it work in 2D?
Apply Artificial Intelligence to solve the
problem….
For books, links, videos and the ISS
www.cs4fn.org
http://teachinglondoncomputing.org/resources/