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Next up on the Radio

Wednesday 27th March 2019
10:30 am - 11:00 am
Australian Eastern Standard Time
Dr Karl joins Nicole Dyer on ABC Gold Coast
Wednesday 27th March 2019
11:00 am - 11:30 am
Australian Eastern Standard Time
Dr Karl joins David Bevan on ABC Adelaide

Dr Karl on Screen

Recent Articles

Barcode invention: part 2

Tuesday 19th March 10:24 am

Barcodes look deceptively simple, but it took 25 years - and two episodes of Great Moments in Science! - to get from that lightbulb moment on a beach to the first barcode and scanner at a checkout.

Barcode invention: part one

Tuesday 12th March 10:03 am

The story of the barcode has everything - from gangsters to newborns and a whole lot of sand.

Latest Books

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Contact Karl

Follow Dr Karl on Twitter, as he seems to answer questions quite often especially when he needs some Avoidance Behaviour, such as when Deadlines approach
Call into Triple J (Thursday AEST 11.00-12.00) and ask your question live during the show. Just call 1300 0555 36
Call BBC Radio 5 Live 'Up All Night'
Australia: (Thursday AEST 12.00pm - 1.00pm) and ask your question live during the show. Just call +44 8085 909693
From the UK: (Thursday BST 3.00am - 4.00am). Just call 08085 909 693 (calls are free from mobiles and landlines in the UK). Email upallnight@bbc.co.uk
Would you like to book Dr Karl for your corporate event? Please contact his agent, Claxton Speakers International, on 02-9909-0033 or email: drkarl@claxtonspeakers.com
Julius Sumner Miller Fellow, University of Sydney Office Phone: (02) 9351 2963