One thing we were curious to try with hota-time is to see whether the idea and the code could be applied beyond looking at London-Sydney travel times. And it can! Here is the output for Melbourne-Sydney travel times, in hours rather than days:
Lots of data points, roughly the same as for the London-Sydney plot. It does look like there is some sort of trend over time, but it's pretty messy. So let's break it down a bit so we can see what's going on.
...continue readingNearly four years ago, I wrote a post about a software project Tim Sherratt and I were working on for Heritage of the Air called hota-time. Briefly, the idea was that hota-time would extract and then plot travel times between London and Sydney mentioned in Trove Newspaper headlines, as a quantitative way to gauge the qualitative impact that aviation had on Australian perceptions of distance -- or, to be more precise, travel time. We (Tim) wrote the code, proved the concept to our satisfaction, uploaded the project, and then didn't get around to writing it up for publication. Which we are now remedying… nearly four years later! (The writing, that is, not yet the publication.)
As part of this process, we've been cleaning up the data and trying some different visualisations. Here's one of the more interesting plots.
This is an updated version of the first plot in the old post, but instead of just lumping all the data together, it is separated out by colour:
That is, present travel times are those reported as actually having been achieved, whereas future travel times have not yet been achieved (usually because they are medium or long-term forecasts, but shorter-term schedule changes fall into this category too). So dark red + yellow tracks actual travel times between London and Sydney, while indigo + teal tracks predicted travel times. Or dark red + indigo tracks sea travel, while yellow + teal tracks air travel.
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With Twitter's future looking increasingly nasty, brutish and/or short, I've made alternative arrangements for my array of Airminded social media accounts at Mastodon. My main account is:
This instance, hcommons.social, is run by Humanities Commons, an open-access scholarship repository (where I already have a presence).
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After 1903, 1911, 1913 and 1928, it's time to round off this miscellany of Australian mystery aircraft with 1939 and 1940 -- separated by little over a year in time, but quite far apart in place and circumstance.
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Continuing this miscellany, on 23 August 1913 the Maitland Daily Mercury published a letter from the Reverend G. W. Payne reporting that he, his wife, and a Mr and Mrs Preston had seen 'an aeroplane with searchlight hovering fairly high over Newcastle and the Hunter Valley'.1 This was just before 4am on 22 August 1913, though Mr Preston had also seen the light at 2am on 21 August. What they were all doing at such an early (or late) hour is unclear, but it was 'A reflection of the light on the still waters of the lake' (presumably Lake Macquarie) which first caught their attention:
...continue readingThe four of us watched it traversing a line from the direction of Newcastle north and west. Though at a considerable distance from us and fairly high in the air, the nature of the light was quite unmistakeable. It passed away in a westerly direction after loitering some time over the Hunter Valley.2
It's been a while since I've done a mystery aircraft post, so here are a few Australian ones I've been saving up for a rainy day (or days):
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A few years back, my article 'William Le Queux, the Zeppelin menace and the Invisible Hand' was published in Critical Survey, with the following abstract:
In contrast to William Le Queux's pre-1914 novels about German spies and invasion, his wartime writing is much less well known. Analysis of a number of his works, predominantly non-fictional, written between 1914 and 1918 shows that he modified his perception of the threat posed by Germany in two ways. Firstly, because of the lack of a German naval invasion, he began to emphasise the more plausible danger of aerial attack. Secondly, because of the incompetent handling of the British war effort, he began to believe that an 'Invisible Hand' was responsible, consisting primarily of naturalised Germans. Switching form from fiction to non-fiction made his writing more persuasive, but he was not able to sustain this and he ended the war with less influence than he began it.
Now you can read the green open access version, which can be downloaded for free from here. Or you can simply enjoy the above cover of Le Queux's 1916 novel The Zeppelin Destroyer.
It seems like only last week that I was spruiking a podcast appearance -- actually, it was last month, which is also not very long ago! This time it was on the History of the Second World War podcast with Wesley Livesay, chatting about the German air raids on Britain of the First World War (and how that affected British thinking and planning for the air raids of the Second World War).
Wesley is indefatigably thorough, or possibly thoroughly indefatigable: this was his 27th interview for this podcast, on top of 97 regular episodes, and he's still only in the interwar period! (This is after doing 295 podcast episodes on History of the Great War, too: clearly he knew what he was getting into.) So there is plenty more world war content to consume -- including another five episodes on interwar airpower, and an interview with Alan Allport on 1930s Britain -- and when you've finished with all that you can go read Wesley's sources.
In September 1909, rather late in Invasion's run, an article appeared in Pearson's Weekly explaining not only some of the pyrotechnical mechanics behind the spectacle, but also the underlying airpower theory. Because it was not merely an popular entertainment and a commercial one at that, but a response to the question 'Invasion by aeroplane, is it possible?'((Pearson's Weekly (London), 9 September 1909, 204.))
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This photo, according to the Illustrated London News, shows 'THE FIRST SHELL DISCHARGED FROM AN AEROPLANE OVER ENGLAND'.((Illustrated London News, 12 June 1909, 7. Another version of the same photo appears in Daily Mirror (London), 5 June 1909, 4.)) But it doesn't really, because the 'aeroplane' almost certaintly wasn't real but a non-flying mock-up strung on a wire or something, and while the 'shell' no doubt contained gunpowder it probably wouldn't have done much damage unless it happened to blow up directly in your face.((The word 'bomb' existed but was only just becoming associated with aerial warfare.)) This was June 1909, and the 'aeroplane' was part of a nightly (except Saturdays) live action pyrotechnic entertainment at the Crystal Palace's football ground called Invasion, described in an advertisement in the Globe as a:
COLOSSAL SIGHT. ABSOLUTE NOVELTY.
BATTLE OF THE FUTURE.
BOMBARDMENT BY AIRSHIPS.
A VILLAGE DESTROYED.
NOVEL SET PIECES.
A REAL TREAT FOR FOREIGN VISITORS.((Globe (London), 17 June 1909, 9.))
Of which last the Westminster Gazette wrote sardonically, 'We admire that final touch. England is destroyed to make a foreign holiday'.((Westminister Gazette, 10 July 1909, 3.))
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