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Fun with synthesized RSS feeds

In an ideal world everyone would have full-content RSS feeds. Until then making your own isn’t that hard — and it’s getting easier by the day with mash-up tools like Yahoo Pipes. Here are some I’ve created:

Update: added links to source code.

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9 July 2007 6:40 pm

Get your blog iPhone-ready

Apple’s releasing a new phone today (if you didn’t know that, you’re lucky). Beside curing all manner of ills, the phone has a great web browser that should get people really interested in using the web while on the move.

Now, the thing is lots of other phones have decent browsers — many phones run Opera, for example, or at least the Opera Mini. And with reasonable data plans becoming increasingly common, it definitely makes sense to get your site ready for mobile browsing.

I used a media="handheld" stylesheet declaration on this site, but that wasn’t very well supported. So here’s a better solution that requires very little work, if you run Wordpress:

  1. Get the Wordpress Mobile Edition plugin and install it. This will create a wp-mobile.php file in your Wordpress plugins folder, and a wp-mobile folder in your Wordpress themes folder.
  2. Open wp-mobile.php in a text editor and search for the word 'iPhone'.
  3. If you don’t find it (I’m sure it’ll be added as soon as the user-agent string is confirmed) add this text exactly as shown (without double quotes) somewhere in the middle of the list of browser user-agents:  " ,'iPhone' " (search for the text 'small_browsers' to find this list). When you’re done, save the file.
  4. Optional — you can also tweak your site’s mobile appearance by going into the wp-mobile folder (under your Wordpress themes folder) and editing the files there (mainly index.php). Some knowledge of PHP is required, but you can avoid the PHP and modify only the HTML inside the file.
  5. Test your mobile site using the Opera Mini applet, iPhoney (if you’re on a Mac) or even a real iPhone ;-). Emulators for most other phone browsers are also available.

The other advantage of a mobile-ready version of your blog is that mobile versions tend to very accessible and compact. Most accessible browsers already support disabling stylesheets, images, etc, but they still have to load other text, such as blogrolls, sidebars, etc. You could use the wp-mobile theme along with a theme switcher that would allow users to switch to a compact, accessible version if they wish.

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29 June 2007 11:29 pm

CNN-IBN covers Blackle, gets most of the story wrong

According to CNN-IBN “Google has done its bit to save energy by launching Blackle — a Google search page that saves energy”, based on the theory that black pixels take less energy to display than white pixels. (Here’s a screen-grab of the story.) There are at least two problems with this.

First, this is not applicable to LCDs — the backlighting on LCD displays uses energy no matter what colors you use on the screen. The good news is that LCD displays use far less energy than CRTs do, completely eliminating the need for display hacks. LCD monitors are still not ubiquitous in India, so if you wish to save energy you should probably buy one.

Second, Blackle wasn’t launched by Google. A quick look at its About Page would have told IBN that. Or a whois check. Apparently a “Google Custom Search” logo is enough to confuse IBN’s tech reporters. Good to see that India’s mainstream media continues to remain cheerfully clueless about technology reporting.

(Update: IBN has now corrected the story. See the screen-grab if you want to see the original.)

1 Comment

6 June 2007 3:22 am

The Web Just Got an Upgrade

Google Gears is an open source browser extension that enables web applications to provide offline functionality using JavaScript APIs. According to TechCrunch, one of the first demos to use Gears will be

… Google Reader, which will add a green download button to the user interface. When you click the button, Reader will download the last 2,000 messages to your computer, preparing your computer to work offline or under a spotty internet connection.

As I’ve written before, offline capabilities are an important step towards making the Web a truly ubiquitous platform. Wifi is still not everywhere, and it’d be great if browsers were useful when you are away from an IP tone.

The next logical step would be for browser vendors to get their act together and bake this into the browser. The last thing I need is a bunch of different “lite” SQL databases and replication engines consuming cycles in the background.

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30 May 2007 11:25 pm

Happy 50th, Helvetica

The BBC celebrates Helvetica’s 50th birthday. Check out the comments, where amateur font geeks have gathered to make bad font jokes (sample: “Two fonts walk into the bar, and the barman says, ’sorry lads, we don’t serve your type.’”) and wistfully talk about their favourite fonts (”Helvetica’s sexier sister, Verdana”) (!).

PS. Windows users take note — Arial looks a lot like Helvetica, but isn’t.

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10 May 2007 3:04 am

The Network is the Computer (except from 11pm-12.30pm)

This story about IIT Bombay (IITB) disabling internet access in its hostels between 11pm and 12:30pm is not at first glance as hair-raising as the one about Chinese Internet de-addiction clinics, but it improves upon acquaintance.

Consider the consequences: one of the finest research tools invented by man is effectively off-limits to students for half a day (Is that really right? Or did the Economic Times flip an AM into a PM?) Of course, in the name of compulsory ’socialization,’ students will crowd into university clusters, which never quite have enough machines to accommodate the crowd.

Involvement in Open Source and Web 2.0 projects will drop because budding programmers at IITB will lose access just when many of them are most productive — given extremely hot Indian summers and the lack of air-conditioning in most (practically all?) dorm rooms, night-time is often the most comfortable time to start a long hack session.

Of course, the most enterprising students (especially in departments like Electronics and Computer Science) will probably use their ability to access department networks to get around this interruption in service, but a more interesting question is: in 2007, should students really have to wrangle for network time?

The point about regulations like these is that they demonstrate the knee-jerk short-term thinking that passes for leadership in many Indian institutions. Apparently the drivers for this decision included the death of IITB’s “hostel culture” (by which they mean late night vodka parties, night shows at cinemas and card games — oh wait, that was my misspent youth) and, rather more seriously, a string of on-campus suicides by some loners. Of course, while it is regrettable, it has to be asked: are the vast majority of well-adjusted (and not-so-well adjusted, trying-to-cope) students well-served by over-paternalistic regulations? Pre-Internet hostels weren’t exactly idylls.

And if IITB is scared of internet in the hostels, wait until they hear about this newfangled thing called wifi in classrooms:

“At any given moment in a law school class, literally 85 to 90% of the students were online,” Professor Herzog says. “And what were they doing online? They were reading The New York Times; they were shopping for clothes at Eddie Bauer; they were looking for an apartment to rent in San Francisco when their new job started…. And I was just stunned.”

There’s the paternalist, knee-jerk reaction of banning the undesirable, so typical of India (Here’s another great example). Then there’s the embracing of the new, and treating students like responsible human beings:

I also tend to wander around the room a lot (I’m one of those don’t-stay-behind-the-lectern professors), which may discourage some of that behavior. And I tend to call on the students who don’t seem engaged. But I don’t make any particular effort to ensure that students aren’t surfing or IM-ing or whatever. They’re grownups. If they’re willing to risk their grades, and to look dumb when they’re called on, well, I’m willing for them to do that too.

1 Comment

13 March 2007 5:11 pm

10 Things We Didn’t Know Last Week

There’s lots of cool content on the web that doesn’t have RSS feeds (or good RSS feeds). Thankfully, synthesizing feeds for most of them is pretty easy (Here’s an example in Python, from back when the Day by Day comic had lousy feeds that forced one to click to see the comic).

Now Yahoo Pipes makes it even simpler, at least for some feeds. The BBC’s Magazine publishes a blog with a great “10 Things We Didn’t Know Last Week” feature, but it doesn’t have its own feed! Thanks to Pipes, I was easily able to come up with a feed only for 10 things. Pipes won’t replace Perl anytime soon, but anything that makes it easier for people to remix data is great to find (and oh, their development environment is very cool indeed).

Update: As Aaron points out below, 10 Things does have its own feed, which I would have discovered if I had bothered to scroll down the page instead of clicking the Subscribe icon in my browser’s status bar (perhaps there’s a usability lesson in there somewhere?). Oh well, it was still a great way to get my feet wet with Pipes.

Update 2: It turns out the BBC 10 Things feed isn’t full-text but my Pipes output is, because the feed it’s based on happens to be full-text. So it turns out Pipes is useful after all. Hooray for remixing!

Subscribe to the full-text 10 Things feed.

2 Comments

20 February 2007 9:55 am

India’s Research Gap

The Telegraph writes about a recent scientometric exercise comparing India’s and China’s science & technology workforce. The results are eye-opening for anyone who still believes that China and India can still be compared at roughly the same level. If I were an Indian policymaker I’d give up the organized S&T stats game as lost for the medium term and focus on other things instead.

  China India
Research Workforce 850,000 115,000
Fresh doctorates per year 40,000 4,500
Per Capita Research Spending $12.15 $3.53
Share of global research publications 5% 1.9%

1. Re-architect the education system starting at the primary level. China’s education push in the late 1970s is really paying off now, while India is bedazzled by its IITs and IIMs that service a vanishingly small fraction of its population. Merely rebranding other institutions with the IIT rubric isn’t helpful, what’s far more essential is a commitment to good universal primary education — something we have just not seen in the past.

2. Promote private research and entrepreneurship. India’s free-er society ought to produce world-class companies — and India’s large conglomerates are doing well in this regard. What’s missing is a systematic effort to encourage start-ups as low-cost test-tubes of innovation. It’s great that the SEZs are trying to cut red tape and aiming at a 7-day approval cycle for new companies, but why can’t a similar time-frame be applied across the country?

3. Stop complaining about talent being poached away. (which is what the PM’s scientific advisor is doing in the Telegraph article.) Instead figure out what how you can network with the poachers and use their help to help you grow the economy to the point where you’re less worried about poaching.

The communication in Current Science can be found here.

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9:17 am

Quick Bits: Violence, English, Solar

Some of this is old news, but I had to flush my bloggable bookmarks queue, so here goes…

  • Solar Cells reach 40% efficiency. Slashdot notes that this means a sunlit area 265 miles square could meet the world’s energy needs. More practically, developing but energy-poor countries like India may have just found a way out of their energy trap. Solar panel infrastructure on roofs and two-way metering are just some innovations that would let Indian cities improve their residents’ quality of life in an environmentally friendly way.
  • “…In the end, America may be stronger for it.” Anti-offshoring lobbyist Scott Irwin shuts down his lobby group. (via)
  • Patent laws stifle drug innovation (via)
  • The Decline of Violence (via)
  • A Middle Ground on Climate, from the NYT. And reaction from RealClimate. (via)
  • English: a Celtic language with Germanic words?
  • “Extraterrestial Intelligent beings do not exist.”

1 Comment

22 January 2007 12:22 am

Flat-Rate 3G Internet

Mobile operator 3 is all set to offer ADSL/Cable-style flat-rate pricing plans for people using their 3G network. UK service will begin next month, other countries are slated to follow soon. This was long overdue; I remember the complete cluelessness on a 3 rep’s face in 2003 when I asked him why I had to pay extra to send email on a network touting its data capabilities. 3 and its cohorts seem to have gotten the religion now, with Sony-Ericsson’s President quoted as saying “Moving to flat rate charging is the key to unlocking the value of the mobile internet”. No kidding.

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17 November 2006 3:14 am

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