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Introduction:

The other day, my regular interlocutors at our local shopping centre regaled me with a new question: "What is AI?" And that turned into a discussion about ChatGPT.

I had to confess that I'd never used it. So, I thought I would 'kill two birds with one stone' and ask ChatGPT, for material for an article for my website.

Since watching the movie Oppenheimer, reviewed elsewhere on this website, I've found myself, from time-to-time, musing about the development of the atomic bomb and it's profound impact on the modern world. 

Nuclear energy has provided a backdrop to my entire life. The first "atomic bombs" were dropped on Japan the month before I was born. Thus, the potential of nuclear energy was first revealed in an horrendous demonstration of mankind's greatest power since the harnessing of fire.

Very soon the atomic reactors, that had been necessary to accumulate sufficient plutonium for the first bombs, were adapted to peaceful use.  Yet, they forever carried the stigma of over a hundred thousand of innocent lives lost, many of them young children, at Hiroshima and Nagasaki.

The fear of world devastation followed, as the US and USSR faced-off with ever more powerful weapons of mass destruction.

The stigma and fear has been unfortunate, because, had we more enthusiastically embraced our new scientific knowledge and capabilities to harness this alternative to fire, the threat to the atmosphere now posed by an orgy of burning might have been mitigated.

Method:

So, for this article on the 'atomic bomb', I asked ChatGPT six questions about:

  1. The Manhattan Project; 
  2. Leo Szilard (the father of the nuclear chain reaction);
  3. Tube Alloys (the British bomb project);
  4. the Hanford site (plutonium production);
  5. uranium enrichment (diffusion and centrifugal); and
  6. the Soviet bomb project.

As ChatGPT takes around 20 seconds to write 1000 words and gives a remarkably different result each time, I asked it each question several times and chose selectively from the results.

This is what ChatGPT told me about 'the bomb':

 

ChatGPT created all that follows, selectively edited by me but otherwise unchanged, except for my comments (as marked in blue). 

(note that it occasionally uses American spelling and likes to say "However," instead of "Yet," or "But"):

How IT (ChatGPT) does this is the subject of a separate article.

  

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Travel

Poland

Poland

 

 

Berlin

We were to drive to Poland from Berlin.  In September and October 2014 were in Berlin to meet and spend some time with my new grandson, Leander.  But because we were concerned that we might be a burden to entertain for a whole month-and-a-half, what with the demands of a five month old baby and so on, we had pre-planned a number of side-trips.  The last of these was to Poland. 

To pick up the car that I had booked months before, we caught the U-Bahn from Magdalenenstraße, close to Emily's home in Lichtenberg, to Alexanderplatz.  Quick - about 15 minutes - and easy.

Read more: Poland

Fiction, Recollections & News

The First Man on the Moon

 

 

 

 

At 12.56 pm on 21 July 1969 Australian Eastern Standard Time (AEST) Neil Armstrong became the first man to step down onto the Moon.  I was at work that day but it was lunchtime.  Workplaces did not generally run to television sets and I initially saw it in 'real time' in a shop window in the city.  

Later that evening I would watch a full replay at my parents' home.  They had a 'big' 26" TV - black and white of course.  I had a new job in Sydney having just abandoned Canberra to get married later that year.  My future in-laws, being of a more academic bent, did not have TV that was still regarded by many as mindless.

Given the early failures, and a few deaths, the decision to televise the event in 'real time' to the international public was taking a risk.  But the whole space program was controversial in the US and sceptics needed to be persuaded.

Read more: The First Man on the Moon

Opinions and Philosophy

Carbon Capture and Storage (original)

(Carbon Sequestration)

 

 

 


Carbon Sequestration Source: Wikimedia Commons

 

At the present state of technological development in NSW we have few (perhaps no) alternatives to burning coal.  But there is a fundamental issue with the proposed underground sequestration of carbon dioxide (CO2) as a means of reducing the impact of coal burning on the atmosphere. This is the same issue that plagues the whole current energy debate.  It is the issue of scale. 

Disposal of liquid CO2: underground; below the seabed; in depleted oil or gas reservoirs; or in deep saline aquifers is technically possible and is already practiced in some oil fields to improve oil extraction.  But the scale required for meaningful sequestration of coal sourced carbon dioxide is an enormous engineering and environmental challenge of quite a different magnitude. 

It is one thing to land a man on the Moon; it is another to relocate the Great Pyramid (of Cheops) there.

Read more: Carbon Capture and Storage (original)

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