Super 8 Sky Garden

James Turrell's Sky Garden

Timelapse / Super 8

Haunting on Henrietta Street

I have long been fascinated by a peculiar chapter in recent Irish history; a set of experiments conducted in the early 1970s to record the voices of the dead. Not only does this illuminate the unusual nexus of science and religion that existed at the time but it also appeals to some distinctly Irish traits; the sense of time being thin, the communion with the dead and the love of a good ghost story.

Thanks to Darn and Mella at Darkroom, I finally captured some of the story of Electronic Voice Phenomenon in Ireland on film last week. The footage is now with Crystal Media for telecine but Darn organised a rough screening before I sent it, so I know it is in good order. Here's a cameraphone photo from the test screening.

Shot off the wall

This is a subject that has fascinated me since I found 'Breakthrough: An Amazing Experiment in Electronic Communication with the Dead' by Konstantin Raudive, as recommended by William Burroughs, and then the local history of the same sensation, 'Voices on the Tape' by Peter Bander. It contains that irresistible clash of rationality and superstition, religion and science that I think appeals to our distinctive cultural make-up.

In 1971 a group of Vatican-sanctioned researchers teamed up with electronics experts from Pye Laboratories to pore over tapes recorded in Faraday cages on high-end audiophile equipment, listening to the howling ether, as Aleander Graham Bell's assistant Watson did, in the hope of picking out voices from across the Great Divide.

Voices

Priestwerk

The reconstruction was filmed in 7 Henrietta Street on the 28th of November. We used a 16mm Bolex and Fomapan black and white stock. Other than a problem with the smoke machine triggering the fire alarms, everything went off without a hitch.

On set

Winding the Bolex

The film opens with Tim Hawkins, playing a priest in the 18th century, experiencing a paranormal phenomenon that causes his death. Not that this actually happened, but it does give our real investigators an interesting haunting to work with.

Reading a book

The second scene picks up the thread when priests from the International Society for Catholic Parapsychologists (played by Sean Swords and Alan Lambert) supported by scientists from the Dublin Institute of Advanced Studies (played by me) set up their equipment to detect traces of this ancient horror.

The equipment we used included a Bang & Olufsen Beocord 2000 reel-to-reel (as specified in the book) and a Compaq Portable II Computer. This experiment has a precedent in Ireland; WB Yeat's attempts to make radio contact with the deceased (as described in Roy Foster's biography as well as connections with a whole host of Irish parascientific endeavors, such as time travel outlined in J.W. Dunne's 'An Experiment with Time', 1927.

Christian Brother

We also got to do a lot of work on Tim's short film, 'The Inheritance'. An unlucky beneficiary of a will (played by me) discovers odd things in the walls of his new house, all the while watched over by the previous inhabitant's spectral widow (Nodlag Houlihan).

Yesterday upon the stairs

Scaling Angular applications @ AngularJs Google

I was given the opportunity by Xavier from the AngularJs Dublin group to present at Google's auditorium on Barrow Street yesterday.

stage

The talk I gave was on scaling Angular Apps for large development teams to work on. The slides are here

The other talks were by Danilo Castro from Media One, on creating bullet proof directives that can be used on any website, even those not running on AngularJS and Filipe Silva from KonnectAgain, about the importance of using Angular Style Guides in your next project. All the talks are archived here.

stage

Migrating from Wordpress to GhostJs on the Raspberry Pi

This might be useful if you are finding Wordpress and the LAMP stack a little slow on the Raspberry Pi.

Hardware

The first step is to get a Pi2 - this will require you to purchase a new 2.1w power supply and possibly new memory if you're using one of the old, large format cards. You'll know pretty quickly if the old power supply is not up to scratch - the Pi2 will start rebooting when it tries to do anything substantial, like installing new packages.

The second optimisation you can make at the hardware stage is buying a high-speed USB key. This will be much faster than running from an SD card and is better suited to frequent read/writes. It's simple enough to do, open cmdline.txt on the SD card and change root=/dev/mmcblk0p2 to root=/dev/sda2.

Preparation

Before you tear down your existing site, make sure you install the Ghost Export plugin to download all your posts as JSON. You'll also need to run the Categories-to-Tags plugin first because Ghost can't deal with categories yet.

I also found that the plugin needed some help to work. I had to add this line to /var/www/wordpress/wp-content/plugins/ghost/class-ghost.php;

add_theme_support('post-thumbnails');

and there was also some clean-up required in the output. In the end, the easiest thing to do was export an empty blog from Ghost and replace the <posts> section with the output from Wordpress.

You'll also need to handle your images outside Ghost. You can use the recommended Cloudinary solution but for now it is probably just best to take a copy of your wordpress/wp-content/uploads directory for safe-keeping.

Installation

Next you'll need to install NodeJs and GhostJs. Not so easy on the Pi2. First of all there's a problem with the latest version Node with GhostJs, specifically how it links to SqlLite, and I had to downgrade to version v0.10.38 to get it to work.

These steps should do the trick;

wget https://ghost.org/zip/ghost-latest.zip  
unzip -d ghost ghost-latest.zip  
cd ghost/  
npm install  

You will need to customise the config.example.js file and rename it to config.js. I found that using Forever worked best for keeping Ghost up and running. The command line to add Ghost looks like NODE_ENV=production forever start index.js

Now you should be able to access Ghost via http://localhost/ghost/debug - this is where you import the JSON file you carefully exported earlier.

Congratulations! You now have a rather plain Ghost installation.

Load Balancing

One of the main reasons for having a blog hosted on a Raspberry Pi is to avoid having to use cloud storage but there is nowhere to host images or static content with Ghost occupying port 80. This is where Nginx comes in;

apt-get install nginx  
service nginx start  

This should get things started. Nginx is extremely fast at rewriting urls and serving static content.

You can point Nginx at your directories with a configuration that looks something like this (presuming you left Ghost running on port 2368);

/etc/nginx/sites-enabled/default

        location / {
                proxy_buffering off;
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Scheme $scheme;
                proxy_pass http://localhost:2368;
                proxy_pass_header X-CSRF-Token;
                client_max_body_size 10M;
        }
        rewrite ^(/wordpress/.*) $1 break;
        location /wordpress {
                internal;
               autoindex on;
                root /<path-to-your-wp-content-copy>;
                expires 1h;
        }
Statistics

So what are the results like? Well here are the raw stats accessing my site;

Wordpress 13.2 MB 22.02s (onload: 21.56s)

GhostJs 105.6 KB (onload: 607ms)

This is very misleading though; the default Ghost skin only shows a preview of the first few posts and includes no plugins. The Wordpress pages is loading widgets, flash movies and video clips. Still, by removing the webserver, database and the php engine and then precompiling the pages, serving with Node and delivering static files with Nginx, you are guaranteeing a massive boost to page delivery.

Pushtar effects shots

I have been working on some shots for Alan Lambert’s forthcoming sci-fi feature. The camera is very far out, so you don’t get to see the detail on these wandering princes of the steppes;