Archive for the ‘Science’ Category

Sanity Now Statistical

Wednesday, March 18th, 2009

Our modern tradition of trial-by-evidence is easy to take for granted. Having only just edged out trial-by-ordeal and gladiatorial combat to take its place amongst pillars of modern civilisation, it now attracts some suspicion when someone proposes that a person be convicted based on popular opinion, and this is a point which I may come to appreciate even more in my later life.

Politicians the world over, however, can have rather a poor grasp of the relationship between evidence and democracy. If I were to dedicate my time to documenting every instance of this in Australia, my server would probably collapse under the weight of the miniature black holes thus created. But Dr Dennis Jensen, Australian Federal Member for Tangney, has managed to be a little bit more offensive than usual for his rank (while still managing to maintain the level of mediocrity unique to Australian politics).

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MRI Explained

Sunday, August 3rd, 2008

A very succinct explanation of magnetic resonance imaging from the TV series Duckman.


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Avatar

Monday, May 5th, 2008

There’s this episode of Avatar in which the main characters come across an obviously phony fortune teller, and spend most of the time trying to make the villagers realise this. Laurie thought I’d find it funny.


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Yes. Yes it can.

Post-Positivism

Sunday, August 20th, 2006

Originally from a Bad Science post asking about post-positivism…

[Tessa K]: positivism is the view that physical theories should only relate experimentally measurable — or even directly observable — quantities. For example, before the existence of atoms or molecules were verified, molecular theories of thermodynamics are not positivist.

Einstien worked in an environment very much influenced by positivists (like Mach), and you’ll note that his theories are very much oriented around observables (Heisenberg also).

POST-positivism comes after. With the advent of large, collaborative scientific endeavours (such as the Manhattan Project, Hollywood films and ridiculing P.T. Barnum until he made a lot of money), it was necessary to compile authoritative lists of things that could be measured. However, the question of whether the list itself could be experimentally verified to exist caused a great deal of consternation amongst the scientific community, leading to such famous quarrels as Russell’s paradox, the EPR paradox and Feynmann’s infamous “I know you are but what am I?” paradox.

Consequently, the list was split into four parts, each given to four little known physicists who died horrible deaths soon after. It is said that whoever finds and assembles the four parts will see the truth in whatever topic haunts them, shortly before dying a horrible death — making it a perfect present for that kid in the back seat who has just asked “are we there yet?” for the hundredth damn time.

What was the question?