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Hand me a napkin

Posted on 2014-08-16 By rolfje No Comments on Hand me a napkin

wheelchair jokeIt’s not until you or someone very close to you becomes dependant on a wheelchair until you notice that the world is not as wheelchair friendly as you might think. Hotel rooms are wheelchair accessable, but the lobby can only be reached by stairs. People with kids can take strollers all the way up to the airplane seat, but people in wheelchairs need to magically heal themselves and leave the wheelchair at the gate.

But this is not a rant about inconsiderate travel company employees. This is about helping people with “a challenge”, as our funny American neighbours tend to call it. And no, this is also not a rant about helping in a big way, raising a million for a cause, getting all the local supermarkets to give away groceries to people in wheelchairs, or TV shows selling tear-jerking advertisement minutes while building a house for a familiy who really needs it.

No, this is about the little things. Things that make you and me different. Things that require only a little twitch of a muscle for healthy people. Quirky things like aligning the napkin to the edge of the table, or petting a cat, or getting a different color straw because it doesn’t match the color of your shirt.

Imagine you had to ask somebody to align your napkin to the edge of the table. That person would find you demanding, and because he doesn’t see what’s solved by doing that, it’s very likely that the napkin will never move. Soon, you will stop asking people to do the little things that used to make you who you were.

It’s a tough choice. Loose friends because they think you’re too much of a demanding prinsess, or loose friends because you stop being you.

When you see or know somebody in a wheelchair, remember that their mind still wants to do those quirky things that make them who they are. It’s okay to say no, but please consider this little blogpost when somebody asks you to straighten their bracelet or clean their glasses.

The world does not need one-time big-mouthed Facebook-selfie heroes. The world needs polite people who can discretely hand over a napkin without asking what’s it for.

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How big is 5 Zettabyte?

Posted on 2013-06-23 By rolfje 3 Comments on How big is 5 Zettabyte?

Spy vs SpySince the interview of Edward Snowden with the Guardian, the discussion about privacy and companies storing and sharing unencrypted private data is picking up. Particularly Americans are worried about what it does for their National security and their private data. But that’s actually a naive thought, given the NSA stores worldwide data.

In a recent coverage on theblaze.com (a rather tabloid-looking news station in the U.S.), the interviewers are shocked to see that the NSA spies on “every American”.

This is a limited view of the world and failing to see the importance of spying on people outside the U.S., but lets start with technical side of things first. What data are they storing and how big is their hard-disk?

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Morse Code is not dead (yet)

Posted on 2013-04-09 By rolfje 1 Comment on Morse Code is not dead (yet)

International_amateur_radio_symbolNot everybody understands why I am trying to learn morse code on lcwo.net. Maybe I’m not even sure myself. But most people seem to think morse code is absolutely dead. I could tell you that’s not the case, but it is far better to find out for yourself. To be able to do that you need access to a radio which can receive CW (continuous wave) signals somewhere between 8MHz and 15MHz. This is the place where HAM Radio Operators hang out and try to talk to eachother. Morse code is still used there, mainly for DX-ing.

So how do you do that? With the power of the internet and a few very enthusiastic people in Dwingeloo, you can now receive radio signals right on your computer using radios all over the world. Lots of links in this article, have fun!

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The world is not a Green Field

Posted on 2012-12-02 By rolfje 2 Comments on The world is not a Green Field

The real world

Devoxx 2012 was nice. 3400 nerds invading Antwerp to talk about new frameworks, languages, and geek out over a set of RaspberryPi‘s. But it also confirmed a new “pet peeve” this grumpy old architect is developing.

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Mortgage Awareness

Posted on 2012-04-01 By rolfje 2 Comments on Mortgage Awareness

This weekend I tinkered around with Apple Keynote. I thought I’d make something useful. In this video I’m trying to show you how much money the bank makes on your mortgage. Banks like you to pay a low monthly fee on your mortgage because it keeps the loan higher for a longer period of time. This way the bank can cash in on the interest rate, and then cash in again at the end of the mortgage contract, when you are still hopelessly in debt.

[youtube=http://www.youtube.com/watch?v=EI6N583mBEw]

“Financial advisors” working for the bank will throw sand in your eyes, saying that keeping your debt high gives you all kinds of tax breaks. But in the end, it’s them who get better of that construction, not you. Don’t fall into this trap. Understand your mortgage contract, learn how the model works, and check your model against the bank’s model (without that financial advisor or the lady at the helpdesk talking to you). You have more room than you think. Use it.

Apple, Uncategorized

Join, don’t judge

Posted on 2012-03-04 By rolfje 3 Comments on Join, don’t judge


Like many people, I like to dine in a good restaurant, where the mood is mellow, the waiter is a fine host, and the cook is passionate about good food and nice presentation. The courses are perfectly timed with your appetite, and each shiny polished plate of food contains the best looking, smelling and tasting food with the nicest textures. After desert, you get the best fresh mineral water coffee, and just sit there, satisfied, happy, in good company. The waiter discretely places the check on the table, and you happily pay whatever that check tells you to pay, and add a big tip for good measure, to show you had a great evening.

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Linked-In not really Opt-in?

Posted on 2011-09-07 By rolfje 1 Comment on Linked-In not really Opt-in?

Linked-In, or Opt-out?Recently there was some kerfuffle about LinkedIn silently changing privacy settings. In fact, they didn’t do that “silently”, nor was it “recent”. Remember that large chunk of text nobody reads with the “Agree” button you clicked on? Those were the new terms, and deeply buried in them was this privacy settings stuff. LinkedIn’s Eric Heath blogged about that, bringing it as “more control over your LinkedIn information”. Sadly, the default setting for this new “control” is “rather open”. But you can change that.

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Why phone companies will fail

Posted on 2010-11-23 By rolfje 5 Comments on Why phone companies will fail

cell phone under waterI recently had a very unpleasant experience with my mobile phone. Actually, it wasn’t so much my mobile phone itself, as it was the sharing of my private mobile phone number between colleagues. Seemingly harmless, but with great consequences.

One of my colleagues, in his innocence and with nothing but good intentions, shared my phone number with another colleague. As I was sitting in the hospital, the second colleague called me with questions about estimates I made for a project, which at that time intensely frustrated me.

Although I had the whole weekend to cool down, I was still pretty pissed the following monday. Some unpleasant conversations followed. I think everything is solved now but I can only hope somebody actually deletes my number when he says he does. Which got me to think about the old fashioned and spectacularly broken addressing model phone companies are still using.

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A Brighter Prius Dashboard

Posted on 2010-08-07 By rolfje 4 Comments on A Brighter Prius Dashboard

When you drive a Prius (like me), and you always have your lights on (like me), you probably have been irritated by the dimmed speedometer and unreadable display in bright sunlight (like me). If you didn’t read the owners manual (like me), you also probably didn’t know about this trick to get the brightness back (like me). Here’s how:

Lights on, dark dashboard

Hold for two seconds

Voila, full brightness.

You need to do this every time you start the car or turn on/off the lights. Return to a dimmed dashboard while driving by pressing the brightness selector briefly.

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Why Growth is a bad thing. Bad.

Posted on 2010-05-17 By rolfje 10 Comments on Why Growth is a bad thing. Bad.

Quite often I am amazed at people’s ability to miss what looks obvious to me. Not only the small things like cleaning up when you spill coffee over the floor, or washing your hands when you get off the toilet, but also bigger things. Like the silly “solutions” to the world’s pollution problem for example.

Looking to solve our pollution problem by changing people’s behavior is one of the things which to me is obvious to fail. Although some behavior may speed up pollution, in the end we all pollute, wether we like it or not.

At the risk of writing a very unpopular blogpost, I’d like to share some thoughts on the ongoing and ever increasing pollution problem. In my eyes, there are 2 real causes of pollution, and ultimately these causes are even self-repairing although you may not like how that works out for you.

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