Author Archive for Matthew Connell

4000 years of mistakes

Digital Dark Age book cover

Recently we were doing the final proofs for a new book about the issues of long term preservation of digital information. I came across a discrepancy in two separate entries on the same object that introduced its own issue about information preservation.

The book, Digital Dark Age: a cautionary tale, is a collaboration between the Parramatta Heritage Centre and the Powerhouse Museum and draws on the graphic art work of Matt Huynh. It looks at the issues associated with the storing of personal and society’s information records using technology that is likely to be obsolete in a few short years.

One of the Museum’s objects that feature in the story is a Sumerian clay tablet which is a record of a financial transaction that took place 4000 years ago.

Sumerian clay tablet, receipt for livestock, 2041 BCE, 85/452

Sumerian clay tablet, receipt for livestock, 2041 BCE, 85/452

The tablet is mentioned in the body of the text and in a glossary of objects. A translation of the cuneiform script on the tablet in the body text referred to a receipt for ‘..five sheep, one lamb and four grass-fed male kids..’.  Later in the object glossary the caption referred to ‘receipt issued- Total: five grass-fed sheep, Total: one lamb. Total: four male kids’.

I drew a red ring around both entries and made a note to find out whether the sheep or the kids had been grass-fed and wondered if it was me who was the duffer who had incorrectly transcribed the information from the acquisition record or whether I could blame someone else.

I went to the Collection’s  database record and found that the transcriptions for the front and back sides of the tablet were the source of the error. Obviously who ever transcribed the information from the original paper file had made the mistake. (The tablet had been acquired in 1985 before the museum had a computer based collection records system.) That let me off the hook.

So I went to the original file to find out the true identity of the grass-eaters but again  found the accession form had the same discrepancy.

I had decided that modern museum professionals should all hang their heads in shame and that we would have to get the cuneiform translated again when I found a note at the very back of the file – the original translation.

Translator's notes for Sumerian clay tablet  85/452

Translator's notes for Sumerian clay tablet 85/452

Click above image to see the original transcription.

Note to self: if my records are going to be preserved I’ll have to make sure they are correct.

The Powerhouse Museum celebrates Ada Lovelace Day

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Ada Lovelace, 19th century British mathematician (1836). Painting by Margaret Carpenter (1793-1872).

We are delighted to be participating in Ada Lovelace Day, an international day of blogging on 24 March 2010 to celebrate the achievements of women in technology and science.

Ada Lovelace, daughter of Lord Byron, is an intriguing figure. Mary Somerville, one of the very few recognised women mathematicians and scientists of the day, took the 17 year old Ada to London to introduce her to society. Through Mary, Ada met Charles Babbage, a scholar and inventor whose expertise included mathematics, astronomy, meteorology, ophthalmoscopy and linguistics, who showed Ada his working model of the Difference Engine.

Collection: Powerhouse Museum

Babbge had designed the Difference Engine to eradicate errors in the calculation of mathematical tables. Calculations of this sort were used to produce charts – such as used in shipping. To this date, errors in mathematical tables resulted in accidents and death – such as in accidents at sea due to mistakes in charts. So there was great practical potential to developing the Difference Engine.

Babbage was impressed to note that Ada understood its complicated operation. From that meeting a 19 year friendship and partnership began.

In 1995 the Powerhouse Museum acquired its specimen piece of Charles Babbage’s Difference Engine No1 (pictured above). Included in the auction lot were 2 letters addressed to Charles from Ada Lovelace.

Later when the acquisition brought us in to contact with Charles’ descendants in Australia we acquired from them, among other items, a small envelope addressed to Babbage containing the calling card of Countess Lovelace.

Collection: Powerhouse Museum

Hand written on the back is the mysterious and tantalising “Very Interesting”. We are delighted to have these items in the Museum’s collection, evidence of Charles’ and Ada’s association.

Collection: Powerhouse Museum

From today’s perspective the culmination of this partnership is the much repeated writing of the ‘first computer programme’ by Ada in her description of Babbage’s Analytical Engine. The paper, written in 1843, is a translation from the French of a paper on the Analytical Engine written by Italian engineer (and later Italian Prime Minister) Luigi Menabrea. Menabrea had reported a lecture by Babbage on his Analytical Engine in Turin. But Ada’s paper included extensive notes of her own and incorporated a table or plan which shows how to set up the Analytical Engine to generate the numbers of the Bernoulli series. It is this table (a copy pictured below) which is commonly held to be the program.

Collection: Powerhouse Museum

Now it’s questionable that this work constitutes a program. It is also likely that Babbage provided much of this material to Ada, but she still had remarkable understanding of a technology which had no precedent. She also saw possibilities for its application that go beyond Babbage’s conception. She was a remarkable person who contributed to our understanding of the world and who we are.

The first Ada Lovelace Day took place on 24 March 2009. The aim then was for 1000 people to blog about women in science and technology; almost 2000 people took part. This year the organisers hope for 3072 people to blog about women in science and technology. At lunchtime on 23 March 2010 (the day before Ada Lovelace Day), there are pledges for just over half of the 3072 hoped for. If you are interested in encouraging the involvement of women in science and technology, you may wish to pledge to blog on here and help this enterprise in support of women in science and technology.

Atlassian come to perve

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I love doing tours of our basement store but this one was especially gratifying. 24 programmers from Atlassian, the company that brings us Confluence and Jira amongst other programs, came to the museum for a bit of R and R.

They loved the tote (0ne of my personal favorites too!)DSC_0080

the first international telegraph cable, the slide rules, the Edison phonographs, the music box discs, and the Arithmometer (Which was the first commercial mechanical calculator in production for nearly 100 years)
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But what really set them off was the NeXT Cube, particulary the ports at the back.
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It’s the true belivers who check out the connections at the back (while claiming “This is nerd porn!”)

Photos courtesy of Seb Ruiz and Brendan Humphreys © All rights reserved.

Meet the curator- Matthew Connell

Matthew Connell with Thacher's Calculating machine. Photography by Jean-Francois Lanzarone © Powerhouse Museum all rights reserved

Name
Matthew Connell

What is your specialty area?
My speciality area started as computing and mathematics, but now extends into other areas of IT. It includes calculation and logic, and computing histories, robotics, human computer interaction, new media, gambling machines and digital records.

How long have you been working at the Museum?
I have been at the museum for 17 and half years which some of my friends (esp non museum) think is very disturbing. Of course by museum standards I’m just a newbie.

What is your favourite object in the collection?
My favourite object is the Tote Model built by George Julius between 1908 and 1912 as a prototype and demonstration for prospective customers of his automatic totalisator. It is a beautiful piece of complex machinery which led to the establishment of an Australian company (Automatic Totalisators Limited) that dominated the international tote industry for 67 years. I am also very fond of idea that Australia’s contribution to the history of computing stems as much from our gambling urges as to our military and scientific endeavours.

What piece of research or exhibition are you most proud of in your career at the Museum?
The Curious Economist:William Stanley Jevons in Sydney is a modest little exhibition that I curated with Lindsay Barrett from University of Western Sydney. The exhibition explores Jevons time in Sydney, his approach to science and the impact influence of his Sydney sojourn on his later work in Economics. Reading Jevons’ letters and journal and looking at his photographs for the first time was one of the highlights of my time here.

nb: Information on Thachers calculating machine can be found here

The first Atlantic submarine telegraph cable

If you’re reading this then you are more than likely sitting at your computer using the internet, or if you’re one of the ‘cool kids’, and technologically savvy, then you may be reading it from your iphone on the bus.

But, do you ever stop to think about how we progressed from sending inked letters via ship, horse, and carrier pigeon, to today, when sending a message overseas is as easy as pushing a few buttons?

Check out curator Matthew Connell tell an amazing story about a little piece of cable and the epic part it played in connecting the world.