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Tom on The Shard was looking very special today
Alan Little on Out and about with GD1 (2): How mobile phones both cause and solve meeting up problems
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Most recent entries
- What writing for Samizdata should now (for me) mean
- Cannon Street Station at the end of the street
- Smoke over west London
- Moving speaker – unmoving listeners, video holder and books
- Pavlova reflected in double glazing
- Out and about with GD1 (3): Baritone borrows my charger
- Out and about with GD1 (2): How mobile phones both cause and solve meeting up problems
- Unusual bench?
- More keeping up of appearances
- Cats and cricket – cats and drones
- Two strangers photoed by Mick Hartley and show there (and here) without their permission
- You can tell that drones have arrived because now they are being turned into a sport
- The Shard was looking very special today
- Windsor Castle from the top of the RAF Memorial
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Category archive: War
I like cricket. And I like drones. But which is best?
There’s only one way to find out. Fight.
Actually, all the drone did there was hover, waiting to be clobbered, which, a minute and a half in, it duly was, by Chris Gayle.
What I want to see is a game where drones fight against each other. Or a war. Either would do.
Or, perhaps a demo.
In an earlier posting I mentioned that I had ordered Marc Morris’s book about The Norman Conquest, and I have now started reading this. (Although for some reason the version of it that I have seems to be the American one.)
The events depicted in the Tapestry are of course highly dramatic, but as Morris relates, so too was the subsequent history of the Tapestry:
By any law of averages, the Tapestry ought not to exist. We know that such elaborate wall-hangings, while hardly commonplace in the eleventh century, were popular enough with the elite that could afford them, because we have descriptions in contemporary documents. What we don’t have are other surviving examples: all that comes down to us in other cases are a few sorry-looking scraps. That the Tapestry is still with us almost I ,000 years after it was sewn is astonishing, especially when one considers its later history. It first appears in the written record four centuries after its creation, in 1476, when it is described in an inventory of the treasury at Bayeux Cathedral, from which we learn that the clergy were in the habit of hanging it around the nave every year during the first week of July (an annual airing that would have aided its conservation). Its survival through those four medieval centuries, escaping the major hazards of war, fire and flood, as well as the more mundane menaces of rodents, insects and damp, is wondrous enough; that it successfully avoided destruction during the modern era is nothing short of miraculous. When the cathedral’s treasury was looted during the French Revolution, the Tapestry came within a hair’s breadth of being cut up and used to cover military wagons. Carted to Paris for exhibition by Napoleon, it was eventually returned to Bayeux, where for several years during the early nineteenth century it was indifferently stored in the town hall on a giant spindle, so that curious visitors could unroll it (and occasionally cut bits off). During the Second World War it had yet more adventures: taken again to Paris by the Nazis, it narrowly escaped being sent to Berlin, and somehow managed to emerge unscathed from the flames and the bombs. The Tapestry’s post-medieval history is a book in itself - one which, happily, has already been written.
What next for it, I wonder?
Ages ago now, before I was ill, I checked out that Suicide Bridge in North London, as reported in this posting. This was a fine destination to have picked for an photo-odyssey, both because the destination itself did not disappoint, and because it was in an unfamiliar part of town, and thus was only the first of many wondrous discoveries I would make that day.
As the years go by, I accumulate more and more photo-collections of such days, and get further and further behind in mentioning them here. Which is fine, because there will soon come a time when I won’t want to be going out at all, just sitting here reminiscing. Then I can catch up. Then I can die.
So, March 8th of this year. I hoover up snaps of the view from Suicide Bridge and then walk away from the top of it in a westerly direction, along Hornsey Lane. I am in Highgate. Then I go north (actually more like west north west) along the B519, past the Ghana High Commission, until I get to a turning that looks like fun again, turning west, again (actually more like south west). I am climbing, still, getting higher and higher above central London. And I take another turn, south, and come upon a miniature version of the Alexandra Palace Tower (that being a bit further out of London, to the north east), beside a lane called Swains Lane.
Here is a web entry that says what this tower is.
And here are some of the photos I took of it and of various decorative effects that it had on its surroundings, on a day that, although getting very dark in parts, is still topped off with a bright blue blue sky, worthy of Hartley himself:
And here is another web entry, which explains what an excellent war this contraption had:
The British immediately realised that the powerful Alexandra Palace TV transmitter was capable of transmitting on the transponder frequencies and instigated ‘Operation Domino’. Using the receiving station at Swains Lane, Highgate, the return signal from the aircraft’s transponder was retransmitted back to the aircraft on its receiving frequency by the Alexandra Palace TV transmitter and hence back to the aircraft’s home station. This extra loop producing a false distance reading.
The Swains Lane receiver station was connected by Post Office landline to the Alexandra Palace transmitter. By using a low-voltage motor, this line controlled any drifting in the lock-on carrier beam, thus eliminating any give-away heterodyning beat-notes.
Which you obviously wouldn’t want, would you?
I love the way things like this look. Totally functional, but … sculptors eat your hearts out. It beats most of what you guys do without even giving it a thought.
Actually, slight correction provoked by actually reading some of what I linked to above. The current structure at Swains Lane is the metal successor structure to its wooden predecessor structure, and it was the wooden predecessor structure which had a good war, but was then blown down by a gale in October 1945.
Had it not been for this extreme weather story, pride of place there would have gone to the report about Quisling getting shot.
I love the internet.
I’ve been reading Paul Kennedy’s Engineers of Victory, which is about how WW2 was won, by us good guys. Kennedy, like many others, identifies the Battle of the Atlantic as the allied victory which made all the other victories over Germany by the Anglo-American alliance possible. I agree with the Amazon reviewers who say things like “good overview, not much engineering”. But this actually suited me quite well. At least I now know what I want to know more about the engineering of. And thanks to Kennedy, I certainly want to know more about how centimetric radar was engineered.
Centimetric radar was even more of a breakthrough, arguably the greatest. HF-DF might have identified a U-boat’s radio emissions 20 miles from the convoy, but the corvette or plane dispatched in that direction still needed to locate a small target such as a conning tower, perhaps in the dark or in fog. The giant radar towers erected along the coast of southeast England to alert Fighter Command of Luftwaffe attacks during the Battle of Britain could never be replicated in the mid-Atlantic, simply because the structures were far too large. What was needed was a miniaturized version, but creating one had defied all British and American efforts for basic physical and technical reasons: there seemed to be no device that could hold the power necessary to generate the microwave pulses needed to locate objects much smaller than, say, a squadron of Junkers bombers coming across the English Channel, yet still made small enough to be put on a small escort vessel or in the nose of a long-range aircraft. There had been early air-to-surface vessel (ASV) sets in Allied aircraft, but by 1942 the German Metox detectors provided the U-boats with early warning of them. Another breakthrough was needed, and by late spring of 1943 that problem had been solved with the steady introduction of 10-centimeter (later 9.1-centimeter) radar into Allied reconnaissance aircraft and even humble Flower-class corvettes; equipped with this facility, they could spot a U-boat’s conning tower miles away, day or night. In calm waters, the radar set could even pick up a periscope. From the Allies’ viewpoint, the additional beauty of it was that none of the German systems could detect centimetric radar working against them.
Where did this centimetric radar come from? In many accounts of the war, it simply “pops up”; Liddell Hart is no worse than many others in noting, “But radar, on the new 10cm wavelength that the U-boats could not intercept, was certainly a very important factor.” Hitherto, all scientists’ efforts to create miniaturized radar with sufficient power had failed, and Doenitz’s advisors believed it was impossible, which is why German warships were limited to a primitive gunnery-direction radar, not a proper detection system. The breakthrough came in spring 1940 at Birmingham University, in the labs of Mark Oliphant (himself a student of the great physicist Ernest Rutherford), when the junior scientists John Randall and Harry Boot, working in a modest wooden building, finally put together the cavity magnetron.
This saucer-sized object possessed an amazing capacity to detect small metal objects, such as a U-boat’s conning tower, and it needed a much smaller antenna for such detection. Most important of all, the device’s case did not crack or melt because of the extreme energy exuded. Later in the year important tests took place at the Telecommunications Research Establishment on the Dorset coast. In midsummer the radar picked up an echo from a man cycling in the distance along the cliff, and in November it tracked the conning tower of a Royal Navy submarine steaming along the shore. Ironically, Oliphant’s team had found their first clue in papers published sixty years earlier by the great German physicist and engineer Adolf Herz, who had set out the original theory for a metal casement sturdy enough to hold a machine sending out very large energy pulses. Randall had studied radio physics in Germany during the 1930s and had read Herz’s articles during that time. Back in Birmingham, he and another young scholar simply picked up the raw parts from a scrap metal dealer and assembled the device.
Almost inevitably, development of this novel gadget ran into a few problems: low budgets, inadequate research facilities, and an understandable concentration of most of Britain’s scientific efforts at finding better ways of detecting German air attacks on the home islands. But in September 1940 (at the height of the Battle of Britain, and well before the United States formally entered the war) the Tizard Mission arrived in the United States to discuss scientific cooperation. This mission brought with it a prototype cavity magnetron, among many other devices, and handed it to the astonished Americans, who quickly recognized that this far surpassed all their own approaches to the miniature-radar problem. Production and test improvements went into full gear, both at Bell Labs and at the newly created Radiation Laboratory (Rad Lab) at the Massachusetts Institute of Technology. Even so, there were all sorts of delays - where could they fit the equipment and operator in a Liberator? Where could they install the antennae? - so it was not until the crisis months of March and April 1943 that squadrons of fully equipped aircraft began to join the Allied forces in the Battle of the Atlantic.
Soon everyone was clamoring for centimetric radar - for the escorts, for the carrier aircraft, for gunnery control on the battleships. The destruction of the German battle cruiser Scharnhorst off the North Cape on Boxing Day 1943, when the vessel was first shadowed by the centimetric radar of British cruisers and then crushed by the radar-controlled gunnery of the battleship HMS Duke of York, was an apt demonstration of the value of a machine that initially had been put together in a Birmingham shed. By the close of the war, American industry had produced more than a million cavity magnetrons, and in his Scientists Against Time (1946) James Baxter called them “the most valuable cargo ever brought to our shores” and “the single most important item in reverse lease-lend.” As a small though nice bonus, the ships using it could pick out life rafts and lifeboats in the darkest night and foggiest day. Many Allied and Axis sailors were to be rescued this way.
For all his joie de vivre, Jardine is a master drone builder and pilot whose skills have produced remarkable footage for shows like Australian Top Gear, the BBC’s Into the Volcano, and a range of music videos. His company Aerobot sells camera-outfitted drones, including custom jobs that require unique specifications like, say, the capacity to lift an IMAX camera. From a sprawling patch of coastline real estate in Queensland, Australia, Jardine builds, tests, and tweaks his creations; the rural tranquility is conducive to a process that may occasionally lead to unidentified falling objects.
Simply put, if you’ve got a drone flying challenge, Jardine is your first call.
So, Mr Jardine is now flying his flying robots over volcanoes. There are going to be lots of calls to have these things entirely banned, but they are just too useful for that to happen.
When I was a kid and making airplanes out of balsa wood and paper, powered with rubber band propellers, I remember thinking that such toys were potentially a lot more than mere toys. I’m actually surprised at how long it has taken for this to be proved right.
What were the recent developments that made useful drones like Jardine’s possible? It is down to the power-to-weight ratio of the latest mini-engines? I tried googling “why drones work”, but all I got was arguments saying that it’s good to use drones to kill America’s enemies, not why they are now usable for such missions.
Incoming from 6k, with apologies for taking so long to post it:
Would a photo thinned to 18px in height be a record for BrianMicklethwaitDotCom?
For some idiot reason, when I first came across the big image, sideways scrollable, at that site liked to above, I couldn’t seem to manage to download the image, and gave up, hence my request. All I got was the entire page. Just now I tried it again, and succeeded at once. That kind of thing often happens with me. 6K mentioned a resizing site. But of course, resizing images is something I do all the time, with my regular photoshop-clone. My problem was not having the image file in the first place. (I now realise that I did download the image, several times. I just didn’t realise where it had gone. That also happens to me a lot.)
6k also mentions another Bayeux Tapestry sighting he recently made, of bits of it redone with Lego.
First, the BMdotcom headline of the day:
These drones are being used to “monitor”, not for bombing or shooting. Nevertheless, interesting.
In other drone photography news, have a look at the new Apple Headquarters, as it takes shape. This particular movie seems to be friendly, so to speak. Apple would appear to have agreed to it. But what of drone photos and drone movies that are not so friendly?
I first realised that drones would be a big deal when I saw one (with a camera attached) in a London shop window.
Lynn writes about English history, and recommends this book about the Norman Conquest of the eleventh century, which sounds good and which I immediately ordered from Amazon, together with this book, which also sounds good.
Lynn mentions the Bayeux Tapestry, which is apparently one of the key sources for what happened during the Norman Conquest. I knew very little about this, but the Internet answers all questions and answers most of them quite quickly. Lynn herself links to a site about a Victorian copy of the Tapestry (in Reading (I had no idea about that)), in her next posting.
It turns out that the Bayeux Tapestry is the ultimate in horizontalised (that link is to a clutch of horizontalised viaducts here) graphics, as in wide but thin top-to-bottom. It is 230ft wide. And it is 20 inches high. You want wide and thin? I do. That’s wide and thin. Here is a picture of the actual Bayeux Tapestry, as it is now displayed, that makes it look like a giant Metro advert.
In a perfect world, I would be able to find a giant long and thin graphic of the entire thing, which you could scroll through horizontally. And, guess what. It is a perfect world. Thank you note 3, here, towards the end.
Anyone know how I could shrink that down to 500 pixels wide?
Sixty Charlie Hebdo demo signs that say something other than “Je Suis Charlie”
Quota photo from Paris (also a selfie)
The Poppies (2): The crowds
The Poppies (1): What they look like
The illustrations for Christian Michel’s talk this Friday (plus some thoughts from me)
Michael Jennings at the Rose and Crown
Is it practise or practice? (And: would perfect communication actually be perfect?)
PID at the Times
Russian tanks in London
The Not-V2 at London Bridge Station
VC DSO DSO DSO DSO
South Bank signs
How hydrogen bombs work
Jane Austen’s naval brothers
The Times of May 24th 1940
Antoine Clarke on life and libertarianism in Britain in 1913
Bookshops as Amazon showrooms
Me and the Six Nations under the weather
Classical CDs from Gramex
Bomber Command Memorial pictures
How gun control works and how it will defend Libertaria
Remembrance Sunday photos
76 operas and a monument in the wrong place for Hermann the German
That’s what I call a Health and Safety Notice
Absolutely not a private navy (except that it probably is)
Climate science as make-work for former Cold Warriors
Bouncing bombs and spinning cricket balls
Brianmicklethwait Dot Com headline of the day
Links to this and that
Anti-aircraft guns may not have killed many enemy airplanes but they did point them out
Peaceful time in war zone
303 Squadron in the movie and on the telly
Three Gorges Dam picture
Separating the men from the toys - the future of warfare and of sport?
The cats from out of town that cleared out the rats during the siege of Leningrad
Luxembourg church in hill and Luxembourg footbridge
Frank McLynn: “Counterfactual history is the essence of history …”
Death to all who try to tiptoe past our guards while wearing giant baby costumes!
Thoughts concerning FDR’s warmongering nature
Wingtipping a V1
They aren’t complete idiots all the time
“Who are you going to sell it to if we don’t buy it?”
Resizing Slim with Expression Engine
Switching from dumb bombing to smart bombing
If the Jews have been running the world they haven’t been doing it very successfully
Terence Kealey on the Wright brothers and their patent battles
Ed Smith on how baseball defeated cricket in America
A soundbite to describe Britain a hundred years ago
Probably not right - but definitely written
Short posting with short photograph
Did Hitler have a plan to conquer the USA?
A conversation - and another outage
American war memorial by the sea at St Nazaire
Cold War winner
Islam was peaceful and tolerant until the Christians attacked it
Will twentieth century aerial warfare be repeated by toys?
What are the world’s biggest problems?
Another link to a friend and that’s your lot today
And further talk at Christian Michel’s about water and power
World War One talk at Christian Michel’s
Geoffrey Blainey on Ivan Bloch - the man who predicted World War One
“Liberty might be defended, after all” - Tom Holland’s account of the Battle of Marathon