Cairo Tiling with no math

Geoff Ebbs /15 June, 2020

Got a ruler, a pencil and a piece of paper? You have everything you need to delve into the fascinating world of tessellation with pentagons. Cairo Tiling is a fascinating pattern named after some street pavers in the Egyptian city and part of a fascinating set of space-filling Pentagons that has been the subject of Continue Reading →

Out with Sax-Coburg-Gotha

Geoff Ebbs /10 June, 2020

White Australians struggling with approaches to justice for First Nations people might consider Radical Republicanism, writes Geoff Ebbs.

To map or not begs the wrong question

Geoff Ebbs /19 April, 2020

The privacy versus safety debate examines the wrong dilemma, according to Geoff Ebbs. Numerous podcasts and current affairs programs have raised privacy concerns this week around track and trace software proposed by the Australian government. They generally framed the debate with safety as one horn of the dilemma and privacy as the other. The question Continue Reading →

SARS-CoV-2 as our crystal ball

Geoff Ebbs /26 March, 2020

The CoViD 19 pandemic is a window into the future and the way that we individually and communally respond is the template that we will carry forward to deal with the next challenge and the next challenge and the one after that as the global systems that support our unsustainable lifestyle fail in the face of increasingly complex challenges

Bend the curve: The hammer and the dance

Geoff Ebbs /23 March, 2020

If you are actually interested in the public policy surrounding the decisions around the Corona virus, this article is thoroughly researched and incredibly informative. As always the devil is in the detail. The primary consideration is what is different about Singapore and South Korea compared to Italy and Spain? https://lnkd.in/gtfiCf4 #coronavirus #hammerdance #closetheschools #bendthecurve #bendingthecurve Continue Reading →

sideways replacement of sleepers

Union warned of derailment in 2011

Geoff Ebbs /29 February, 2020

Alarm bells rang in the Cage when a derailment occurred on the Melbourne Sydney track on February 24th 2020 due to “mud holes” on the track. The Rail Tram and Bus Union reported in 2011 that the practice of replacing sleepers without lifting the track, known as sideways replacement, was causing mudholes that could lead Continue Reading →