Adds alt text across blog posts

Author: microcosm

app/_includes/image

@@ -22,18 +22,19 @@
 {% capture image  %}{{ imagepath | append: include.file  }}{% endcapture %}
 {% capture image2 %}{{ imagepath | append: include.file2 }}{% endcapture %}
 
-{% if include.alt.size > 0 %}
-	{% capture alttext %}{{ include.alt }}{% endcapture %}
-{% elsif include.caption.size > 0 %}
-	{% capture alttext %}{{ include.caption }}{% endcapture %}
-{% endif %}
+{% capture alttext %}{{
+	include.alt |
+	markdownify |
+	strip_html |
+	strip_newlines
+}}{% endcapture %}
 
-{% capture alttext %} alt="{{
-	alttext |
+{% capture alttext2 %}{{
+	include.alt2 |
 	markdownify |
 	strip_html |
 	strip_newlines
-}}"{% endcapture %}
+}}{% endcapture %}
 
 {% capture captiontext %}{{
 	include.caption |
@@ -52,9 +53,9 @@
 	<a href="{{ include.link }}">
 	{% endif %}
 
-		<img src="{{ image }}"{{ alttext }} />
+		<img src="{{ image }}" alt="{{ alttext }}" />
 		{% if include.file2.size > 0 %}
-			<img src="{{ image2 }}"{{ alttext }} />
+			<img src="{{ image2 }}" alt="{{ alttext2 }}" />
 		{% endif %}
 
 	{% if include.link.size > 0 %}
@@ -70,5 +71,6 @@
 {% capture image  %}{% endcapture %}
 {% capture image2 %}{% endcapture %}
 {% capture alttext %}{% endcapture %}
+{% capture alttext2 %}{% endcapture %}
 {% capture captiontext %}{% endcapture %}
 {% capture figureclass %}{% endcapture %}

app/_posts/2016-05-09-announcing-the-program.markdown

@@ -1,5 +1,5 @@
 ---
-title     : "Announcing the Thoughtworks Artist Residency"
+title     : "Announcing the Thoughtworks Arts Residency"
 ---
 Thoughtworks is excited to announce the launch of our arts residency program. Based out of our New York offices, the residency offers artists access to our facilities, equipment and staff for a period of sixteen weeks.
 
@@ -12,6 +12,7 @@ Our aim for this program is to create a space where leading technology artists a
 The residency is inspired by some of Thoughtworks [core values](https://www.thoughtworks.com/about-us). Working with artists who are at the forefront of the creative technology field augments our ability to champion software excellence and provides an opportunity to think critically about its potential and use for social change.
 
 {% include image file='artahack.jpg'
+   alt='Nine people look on as a workshop participant shows work on a laptop screen'
    caption='Participants taking part in Art-A-Hack, 2015' %}
 
 The residency compliments our existing public programming from Thoughtworks New York including the weekly meetup [Hardware Hack Lab](https://hardwarehacklab.io/) and the annual co-creation experiment [Art-A-Hack](https://artahack.io/).

app/_posts/2016-05-23-introducing-cyborg-foundation.markdown

@@ -5,6 +5,7 @@ tags      : [time-sense, seismic-sense]
 We are very happy to introduce the first artists to the Thoughtworks Arts Residency program. Moon Ribas and Neil Harbisson are artists who use technology to explore the concept of cyborgism - the permanent integration of humans and machines to create new senses.
 
 {% include image file='republica.jpg'
+   alt='Neil Harbisson speaks with his webcam antenna on display while Moon Ribas stands nearby'
    caption='Moon and Neil speaking at re:publica 2013 (credit <a href="https://www.flickr.com/photos/re-publica/8719248246/in/photolist-ehuqJj-ehqnmQ-ehqnh5-ehoGKB-ehoGP4-nvx7Uz-59nbLe-nvBQdE-nvBQ5J-59vhrc-eikB4T-59zvGY-59ndD8-59zwkd-59zw3E-nvCqXi-eikAMg-59vhGr-59ndVr-59nd4v-59rqej-59ndne/">Gregor Fischer</a>)' %}
 
 Moon and Neil will be working out of the Thoughtworks New York office for the next sixteen weeks as our first artist-in-residence.
@@ -16,6 +17,7 @@ Moon and Neil will be working out of the Thoughtworks New York office for the ne
 > "The very first thing I looked at with it, outside the classroom, was a red noticeboard. It made the note F, the lowest sound on the spectrum. Red was my favourite colour for years."
 
 {% include image file='eyeborg.jpg'
+   alt='Neil Harbisson with a bulky webcam strapped to his head by velcro'
    caption='Neil Harbisson wearing his visual adapter interface, 2010 (credit <a href="https://www.flickr.com/photos/caseorganic/4677660848/">Amber Case</a>)' %}
 
 The current version of Neil's antenna is permanently attached to the occipital bone in his head. This gives him the unique distinction of being the first person officially recognized as a cyborg by the UK government.
@@ -27,6 +29,7 @@ In 2010, Moon and Neil co-founded the [Cyborg Foundation](https://en.wikipedia.o
 In 2013, Moon had a permanent implant installed in her arm which allows her to sense seismic activity. Regardless of where in the world the seismic activity occurs, Moon senses it at a linked intensity and duration.
 
 {% include image file='moon-tedx.jpg'
+   alt='Moon Ribas speaking on a large TEDx stage in red light with a map of Europe displayed on a screen behind her'
    caption='Moon Ribas speaking at TEDx M&#252;nchen (credit <a href="https://www.flickr.com/photos/tedxberlin/15921938041/">birdyfoto</a>)' %}
 
 During the residency period, Moon's goal is to expand her seismic sense in one of two ways. Either, by augmenting her existing sense with a geographic location awareness, or by adding another implant that senses seismic activity from the moon.

app/_posts/2016-06-03-inside-our-brand-new-hack-lab.markdown

@@ -4,6 +4,7 @@ title     : "Inside Our Brand New Lab at Thoughtworks NYC"
 This week we have been building out our new lab space here in New York. We are designing the space for internal use by employees, as well as for public use during community events and programs.
 
 {% include image file='kent.jpg'
+   alt='Kent Rahman sitting at a computer with electrical components in a drawer behind him'
    caption='Kent Rahman working in the lab' %}
 
 The lab provides facilities for exploring new hardware and emerging technologies. It features three new VR stations with powerful computers, a hardware prototyping station, and an array of other fascinating equipment - everything from 3D video rigs to Brain-Computer Interfaces.
@@ -13,13 +14,15 @@ The lab provides facilities for exploring new hardware and emerging technologies
 Attendees to our weekly [Hardware Hack Lab](https://hardwarehacklab.io/) can use the facilities to explore emerging technologies in a social setting. In addition, our annual [Art-A-Hack](https://artahack.io/) program now has a consistent home in which to bring projects to fruition.
 
 {% include image file='vive.jpg'
+   alt='Two people using a HTC Vive headset and controller'
    caption='Using a HTC Vive at Hardware Hack Lab' %}
 
 Internally, our developers and designers are assessing various emerging technologies for their potential impact on our clients. At the same time, we are undertaking tactical projects to help us explore the technical, experiential and social patterns made possible by the tech.
 
 As initiatives and engagements continue to crop up, having a consistent location to explore emerging tech helps us to build a culture, and to share that culture via public and community engagement.
 
 {% include image file='artahack.jpg'
+   alt='Two people using soldering equipment'
    caption='Art-A-Hackers using the soldering equipment' %}
 
 For artists taking part in the Arts Residency program, direct access is available to the lab whenever required.

app/_posts/2016-06-16-visioning-session-with-the-cyborgs.markdown

@@ -6,6 +6,7 @@ tags      : [time-sense, seismic-sense]
 Our first residents, the Cyborg Foundation, [came to Thoughtworks](/blog/introducing-cyborg-foundation/) with fascinating new concepts for sensory organs they would like to explore. Our aim is to help them move forward.
 
 {% include image file='neil.jpg'
+   alt='Neil drawing on a whiteboard as team members look on'
    caption='Neil detailing the vision for his new sense' %}
 
 Following on from an initial period of outreach across Thoughtworks offices, we have now assembled a global cross-disciplinary team. Yesterday the team assembled for a planned 4-hour visioning session, and I have to say I was surprised at just how effective it was.
@@ -17,6 +18,7 @@ In addition to ThoughtWorkers, attending the meeting were two recent graduates f
 Also attending was residency co-organizer Ellen Pearlman, a PhD candidate at the School of Creative Media in Hong Kong. Ellen brings a wealth of knowledge about trans-humanism, and recently premiered her [new brain opera](http://media.digitalarti.com/image/noor_a_brain_opera) at ISEA 2016.
 
 {% include image file='call.jpg'
+   alt='Moon Ribas drawing on a whiteboard as team members watch through a Zoom call'
    caption='Moon Ribas describes her new sense to a cross-disciplinary team' %}
 
 The key objective for the session was to get all the ideas out on the table, in such a way that it enabled this globally distributed team to start working.
@@ -37,20 +39,23 @@ While I acted as facilitator, Danelle acted as scribe, capturing ideas on a virt
 Whenever the questioning reached natural cadences, we turned attention to the wall for validation and modification by the group. We would then draw a line under that area of inquiry and ask the group: "who has more questions we _haven't_ covered yet?"
 
 {% include image file='wall-nonactionable.png'
+   alt='A screenshot of non-actionable tasks'
    caption='Non-actionable ideas arranged on a wall' %}
 
 The wall above shows where all the non-actionable ideas ended up. These ideas are crucial, and there were several key moments where our understandings of the conceptual underpinnings of the project were questioned, corrected and aligned with reference to this wall.
 
 The actionable ideas ended up on a wall of their own, where they were discussed and prioritized. After this, we transferred the ideas onto Trello as tasks, and asked who in the group would like to volunteer for ownership of which tasks.
 
 {% include image file='wall-actionable.png'
+   alt='A screenshot of a Trello board of actionable tasks'
    caption='Actionable ideas arranged as tasks' %}
 
 This left people feeling enabled and ready to go. However, Ellen reminded us of something crucial at the end - the need to clearly set expectations about what success might look like.
 
 We only have this team assembled for a short time during the residency. We agreed that some form of prototype 'exo-sense' could be possible, but not the development of full implants.
 
 {% include image file='oryan.jpg'
+   alt='A man seen from behind in a bathroom wearing a synthetic shape down his spine with interlaced electronics'
    caption='Oryan wears his \'exo-sense\' thesis project' %}
 
 As Neil pointed out, an exo-sense is different to a wearable, in that it will be worn 24 hours a day, 7 days a week. Oryan walked us through what this looks like in practice, showing us his exo-sense thesis project from ITP.

app/_posts/2016-06-29-team-gets-started-on-research.markdown

@@ -6,6 +6,7 @@ tags      : time-sense
 Moving on from our successful [visioning session](/blog/visioning-session-with-the-cyborgs/), the team has started to coalesce around tasks. At this early stage that means research and experimentation, along with the creation of simple test rigs to measure results.
 
 {% include image file='oryan.jpg'
+   alt='A man solders components on a dummy head'
    caption='A mannequin head for Neil\'s time sense' %}
 
 In this post, we'll look at the progress of the engineering team for Neil Harbisson's new "time sense".
@@ -19,6 +20,7 @@ Let's begin with a quick review of what Neil hopes to achieve. Neil wants to cre
 Neil will eventually consider achieving this via a permanent implants. However, this residency project has a different focus. The team is helping Neil create an 'exo-sense' — an external sensory organ, or wearable sense.
 
 {% include image file='exo-sense-sketch.png'
+   alt='A 3D generated image representing a synthetic headband with embedded heat sources'
    caption='Oryan\'s sketch for the exosense' %}
 
 As was the case with Neil's existing [antenna implant](/blog/introducing-cyborg-foundation/), the intention of this first wearable prototype is to discover how the sense feels when experienced consistently for a period of time.
@@ -42,6 +44,7 @@ Once manufactured, Neil will wear the exosense for a prolonged period of time, a
 However, before creating a finalized wearable exosense, the team is experimenting with prototypes. They are also designing test rigs, enabling them to build and refine these early prototypes.
 
 {% include image file='diagram.jpg'
+   alt='A paper sketch of a human head with points plotted on it representing moments of high heat at specific locations around the head'
    caption='A \'moment of heat\' generated by resistors' %}
 
 In our first prototype, resistors are positioned on a headband worn around the skull. Short bursts of [pulse-width modulated](https://en.wikipedia.org/wiki/Pulse-width_modulation) current is applied to create a brief 'moment of heat' in each resistor, with a gentle incline and decline.
@@ -62,6 +65,7 @@ Let's take a look at the progress made on each stream in turn.
 In the first test stream, the team needs to know how various individual resistors respond to different applications of current. Initially, the team ran tests applying current directly to a variety of resistors, with the results illustrated below.
 
 {% include image file='initial-tests.png'
+   alt='A trendline showing resistance versus temperature'
    caption='Test results from application of direct current' %}
 
 To further this research, Kelvin Rojas has been experimenting with different resistive materials, such as [nichrome wire](https://en.wikipedia.org/wiki/Nichrome), which acts as a resistor and could be a good candidate material. Nichrome is typically used in devices where electric heating is required, for example 3D printers and electronic cigarettes.
@@ -71,6 +75,7 @@ Kelvin has written Arduino code which allows him to apply a variable pulse-width
 You can see the full codebase at [kr0/Arduino-PyPlot](https://github.com/kr0/Arduino-PyPlot).
 
 {% include image file='moment-in-heat.jpg'
+   alt='A trendline recorded from real sensor data'
    caption='Kelvin\'s first moment of heat' %}
 
 The illustration above shows the results of applying a short electrical pulse to the nichrome coil. The ambient temperature response is shown in red, the contact temperature response in blue.
@@ -86,6 +91,7 @@ Moving forward, we will test directly on Neil's head. Given that each resistor w
 In this second context, the test rig must allow us to compare the sensations Neil reports with a live feed of heat data from the collection of resistors.
 
 {% include image file='sam-oryan.jpg'
+   alt='An image of two engineers at work overlaid with a heat sensor image of a man\'s head'
    caption='Sam and Oryan working on the test rig' %}
 
 To do this, Samual Sadtler and Oryan Inbar have been experimenting with a [thermal camera](https://en.wikipedia.org/wiki/Thermographic_camera). Thermal cameras read infra-red radiation, which gives us an indication of heat output throughout an image area. Inset to the picture above is an initial test shot with the camera.

app/_posts/2016-08-31-introducing-heather-dewey-hagborg.markdown

@@ -15,13 +15,15 @@ In her breakthrough piece, _Stranger Visions_ (2013), Heather went undercover co
 Heather took these samples to [Genspace](http://genspace.org/), a "community bio-lab" in Brooklyn, and sequenced the DNA found within. She then used this data to build imagined 3D sculptural masks of what these anonymous people might look like.
 
 {% include image file='stranger-visions.jpg'
+   alt='A 3D-printed face mask (left) and a cigarette butt (right)'
    caption='DNA from saliva used to generate a 3D-printed face model' %}
 
 The results are astonishing and chilling, showing how easy it is to reconstruct physical traits from discarded everyday items. 
 
 Stranger Visions was also indicative of an emerging and [much larger market](https://snapshot.parabon-nanolabs.com/), using traits of DNA analysis for a variety of purposes, such as [criminal investigation](http://www.nytimes.com/2015/02/24/science/building-face-and-a-case-on-dna.html) and [public shaming](http://time.com/3890499/hong-kong-littering-campaign/). Realizing there was a burgeoning market for this re-purposed DNA, Heather wrote extensively about its dystopic social implications.
 
 {% include image file='dna-faces-separator.jpg'
+   alt='A grid of synthetic faces with unscientifically oriented gender and skin tone variations'
    caption='The \'face space\' in the algorithms make entirely unscientific generalizations' %}
 
 Heather also exposed how pre-existing racial and ethnic and gender stereotypes and biases are rife in the creation of seemingly benign, neutral algorithms. This seriously flawed practice contains a bias that affects everyone’s information, and by extension their life: credit, medical analysis, and potentially even job status.
@@ -35,6 +37,7 @@ The companion spray _Replace_ obfuscates the remaining DNA; it contains 50 rando
 During her time at Thoughtworks, Heather intends to begin a new body of work, currently named _Sell/Bio_, in which she will research the "histories, infrastructures, protocols and business models" that position DNA as a "commodity to be bought and sold on the open market."
 
 {% include image file='exhibition.jpg'
+   alt='An array of face masks presented onn a gallery wall'
    caption='_Stranger Visions_ on display at Artefact 2015 (credit [Carolien Coenen](https://www.flickr.com/photos/carolienc/15983790824/))' %}
 
 Taking inspiration from _Rebecca Skloot_’s bestseller [The Immortal Life of Henrietta Lacks](http://rebeccaskloot.com/the-immortal-life/), _Sell/Bio_ "connects the dots, giving a face and a name to supposedly anonymous DNA, derived from human cells and put up for sale, presenting a visceral portrayal of the invisible subjects of biological exploitation."