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Meetup no longer supports file uploading. To upload photos, please use the Photos section of your Meetup group; for other file types, we recommend that you use another service, many of which are mobile-friendly and free, such as Dropbox or Google Drive.

Files that have been previously uploaded are still accessible below. We recommend that you save any files that you want to keep to your computer.

Name/Description Type Size Uploaded By Uploaded On

A short history

A very short history of Astronomy.

PowerPoint presentation 237K A former member Jun 13, 2013

ear candles

Monster Ear Candle

PowerPoint presentation 3.4M A former member Apr 22, 2012

The Debunking Handbook

Debunking myths is problematic. Unless great care is taken, any effort to debunk misinformation can inadvertently reinforce the very myths one seeks to correct. An effective debunking requires three major elements.

Adobe Acrobat file 554K Greg P. Feb 21, 2012


Tim Mendham investigates unnatural sciences in our universities.

Adobe Acrobat file 702K A former member Feb 12, 2012

Not even wrong v1.1

My 'not even wrong' presentation.

PowerPoint presentation 1.3M A former member Jan 22, 2012

1 The Nature of Arguments (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 101K Greg P. Aug 31, 2011

2 Different Types of Arguments (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 103K Greg P. Aug 31, 2011

3 Setting out Arguments - Logic Book Style (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 141K Greg P. Aug 31, 2011

4 What is a Good Argument - Validity and Truth (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 112K Greg P. Aug 31, 2011

5 Evaluating Arguments Part One (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 142K Greg P. Aug 31, 2011

6 Evaluating Arguments Part Two (slides)

Critical Reasoning for Beginners

Adobe Acrobat file 368K Greg P. Aug 31, 2011


Is it possible to predict the future?

Adobe Acrobat file 405K A former member Apr 18, 2011

Alt Med Flowchart

Alternative 'Medicine' Flowchart

an image 763K Greg P. Apr 8, 2011


Three Worlds KARL POPPER THE TANNER LECTURE ON HUMAN VALUES Delivered at The University of Michigan April 7, 1978

Adobe Acrobat file 173K A former member Mar 27, 2011

Argument from popularity

Argumentum ad populum, or the fallacy known as the argument from popularity, as presented by Tim Harding to the Celestial Teapot meetup group, 17 February 2011.

Adobe Acrobat file 96K Tim H. Mar 2, 2011


The WA Coroners inquest findings. The very sad story of the death by quackery of Penelopy Dingle.

Adobe Acrobat file 613K A former member Feb 16, 2011

Better Health Channel petition

Adobe Acrobat file 68K A former member Feb 12, 2011

Better Health Background

Adobe Acrobat file 59K A former member Feb 12, 2011

What is rationality

Paper presented by Tim Harding to Mordi Skeptics, 1 February 2011.

Adobe Acrobat file 165K Tim H. Feb 3, 2011

Faulty Generalisation

As the "Logical Fallacy of the Month" for our January 2011 meetup, I presented a fairly common fallacy known as Faulty Generalisation.

Adobe Acrobat file 27K Tim H. Jan 20, 2011

Argument from authority and ad hominem

Short presentation by Tim Harding to Celestial Teapot meetup, 16 December 2010.

Adobe Acrobat file 31K Tim H. Dec 17, 2010


Outcome of FTP inquiry into Dr Wakefield.

Zip archive 297K A former member Jan 29, 2010

On the Value of Skepticism

Evaluating the claims of quacks and the like is useful because it provides a sandpit where we can learn how to spot flawed reasoning and faulty logic without getting hurt. In this essay Russell explores how to evaluate ideas beyong our reasoning.

Adobe Acrobat file 94K A former member Dec 18, 2009


More lies about homeopathic vaccination

Adobe Acrobat file 19K A former member Sep 8, 2009

Eye of the Needle

This file is an article telling the story of the late Dana McCaffery who died from pertussis, a preventable disease.

Adobe Acrobat file 434K A former member Jul 25, 2009

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