In our newly opened exhibition, “Atmospheric Memory,” we proudly present a remarkable piece of history from the Powerhouse collection that inspired the very essence of this exhibition – the Babbage ‘Difference Engine No. 1’ Calculating Engine. Inspired by the visionary ideas of computing pioneer Charles Babbage.
In 1837, Charles Babbage, the inventor of the first computer, had a profoundly intriguing idea. He proposed that every word ever spoken by a human being leaves a permanent trace in the air. In his visionary mind, he imagined a sufficiently advanced computer that could calculate the movement of all air molecules, allowing us to rewind these paths and recreate the voices hidden in the atmosphere.
Babbage’s concept was not just about curiosity; it carried deep emotional significance. He yearned to hear the voices of long-lost loved ones, listen to vows unredeemed, witness promises unfulfilled, and perhaps even uncover evidence of crimes against humanity to seek historical justice.
Almost 200 years later, the dream of perfect recollection that Babbage imagined is one of the defining conditions of our digital life. We have filled the world with recording devices such as networked microphones, cameras, GPS trackers, and biometric sensors. In our social, cultural, economic, and political spheres, we willingly allow our own information to be accumulated and stored.
In this context, Babbage’s Difference Engine No. 1 takes on new significance. His vision for a machine that would relieve people of ‘routine mental labor’ and eliminate human errors in calculations with a perfect machine foreshadowed the digital age. While Babbage may not have witnessed the full realisation of his dream, his pioneering efforts paved the way for the digital revolution that has transformed the world.
In 1879, after Charles Babbage’s passing, his son Henry assembled this section of the Difference Engine, using original parts. This exhibit showcases the addition and carry mechanism and is one of six specimens constructed to demonstrate the machine’s inner workings.
As we celebrate the unveiling of our exhibition, “Atmospheric Memory,” we invite you to witness the marvel of Charles Babbage’s Difference Engine No. 1. Step back in time and immerse yourself in the visionary ideas that laid the groundwork for modern computing. Let this incredible object from our collection remind us of the profound impact of his ideas and the continuous evolution of technology in our lives today.
Karen Griffiths
Volunteer Programs Officer




Jenny Kee and Linda Jackson: