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FLICKR: @STÉFAN
GRANNY WAS A HACKER 
KNITTING AS 
COMPUTER CODE
BINARY 
KNITTING 
• “Decoder Hat” by Zabet 
Stewart 
• Ribbing used to encode 
binary message. 
• One = knit; zero = purl 
• Message length restricted 
by size of hat. 96 stitches = 
12 ASCII characters in 
binary at 8 stitches each
BINARY 
KNITTING 
• “Binary Scarf” by 
heycarrieann 
• Source code of ravelry.com 
(knitting website) 
converted into binary
BINARY 
KNITTING 
• “The Viral Knitting Project” 
by Kirsty Robertson and 
Roberto Buiani 
• Code Red computer virus 
turned into a knitting 
pattern
F L ICKR :@DE VABURGE R RAV E L RY:@CYN
BINARY 
KNITTING 
• “Braille Socks” by Jessica 
Landers 
• Uses knit and purl stitches 
to mimic Braille writing 
• Encodes a stanza from Dr. 
Seuss’s Oh, The Places 
You'll Go!
CODED COLOURS 
FLICKR:@ADAMKNITS
CODED 
COLOURS 
• “Morse Code” by Kate 
Atherley 
• Uses colour to represent 
dots and dashes 
• Left mitten reads “My Left 
Mitten”, thumb reads 
“Thumb”, etc
FROM: KNITTY.COM 
F ROM: S T R INGGE EKE RY.COM F ROM: WOOL LY THOUGHT S
CODED 
COLOURS 
• Probably the most literal 
example of knitted code 
• Average scarf holds about 
120 bytes of information 
FLICKR: @JACQUELINE-W
QR CODE 
• Yes, it really works. 
FLICKR: @BEKATHWIA
REALLY GEEKY STUFF 
FLICKR: @BEKATHWIA
ARECIBO 
MESSAGE 
• Filet crochet by Devon 
• Message written by Carl 
Sagan (and others), 
broadcast into space via 
radio wave in 1974 
• Includes atomic numbers, 
double helix of DNA, 
graphic of solar system, 
etc
KNITTED 
APPLICATION 
• iTunes No. 6 by Phillip 
Stearns 
• Digital forensics tools used 
to extract, process, and 
visualise raw binary data 
• Knitted and woven by 
computer
THANK YOU 
Kris Howard @web_goddess

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Granny Was a Hacker: Knitting as Computer Code

  • 2. GRANNY WAS A HACKER KNITTING AS COMPUTER CODE
  • 3. BINARY KNITTING • “Decoder Hat” by Zabet Stewart • Ribbing used to encode binary message. • One = knit; zero = purl • Message length restricted by size of hat. 96 stitches = 12 ASCII characters in binary at 8 stitches each
  • 4. BINARY KNITTING • “Binary Scarf” by heycarrieann • Source code of ravelry.com (knitting website) converted into binary
  • 5. BINARY KNITTING • “The Viral Knitting Project” by Kirsty Robertson and Roberto Buiani • Code Red computer virus turned into a knitting pattern
  • 6. F L ICKR :@DE VABURGE R RAV E L RY:@CYN
  • 7. BINARY KNITTING • “Braille Socks” by Jessica Landers • Uses knit and purl stitches to mimic Braille writing • Encodes a stanza from Dr. Seuss’s Oh, The Places You'll Go!
  • 9. CODED COLOURS • “Morse Code” by Kate Atherley • Uses colour to represent dots and dashes • Left mitten reads “My Left Mitten”, thumb reads “Thumb”, etc
  • 10. FROM: KNITTY.COM F ROM: S T R INGGE EKE RY.COM F ROM: WOOL LY THOUGHT S
  • 11. CODED COLOURS • Probably the most literal example of knitted code • Average scarf holds about 120 bytes of information FLICKR: @JACQUELINE-W
  • 12. QR CODE • Yes, it really works. FLICKR: @BEKATHWIA
  • 13. REALLY GEEKY STUFF FLICKR: @BEKATHWIA
  • 14. ARECIBO MESSAGE • Filet crochet by Devon • Message written by Carl Sagan (and others), broadcast into space via radio wave in 1974 • Includes atomic numbers, double helix of DNA, graphic of solar system, etc
  • 15. KNITTED APPLICATION • iTunes No. 6 by Phillip Stearns • Digital forensics tools used to extract, process, and visualise raw binary data • Knitted and woven by computer
  • 16. THANK YOU Kris Howard @web_goddess