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Around town in an electric car

Driving the Smart Electric Drive (EQ fortwo)

Nov. 16, 2018
For one week I drove the electric Smart EQ fortwo in and around town. I found out what it's like to drive electrically: fun!

Earlier this month I drove around town for a week in an electric vehicle, a brand new Smart Electric Drive (EQ fortwo). I used it to commute, for my daily groceries and to visit family, friends and customers. What's it like to drive a fully electric car on a daily basis?

Is the Apple Watch the modern tool watch?

Testing the Apple Watch's usefulness in real life

Nov. 2, 2018
I tested the Apple Watch during my work in Frankfurt this week where I had to go inside an internet data centre.

This week I went to Frankfurt for business. I had to perform maintenance to servers in a data centre. This seemed like a great opportunity to test the Apple Watch's usefulness in real life (other than health and fitness). I wondered, is the Apple Watch the modern tool watch?

Removing paint from a bike frame

Uncover the aluminium with chemicals and sanding paper

June 9, 2018
Using dichloromethane and sanding paper I removed the paint from my bike frame to create a minimal, raw aluminium look.

There is beauty in raw, unfinished material that is often hidden with superfluous layers of paint. I like things to be true to the nature of the material. My bike was painted black - not bad - but I wondered what it really looked like from a material point of view.

Creating a minimal iPhone stand

Routing oak wood for a custom fit

June 2, 2018
Today I created a minimal iPhone stand from oak wood. I used a single piece of wood to get it done.

Today I created a minimal iPhone stand from oak wood. While it's much faster to buy one online, I wanted one to fit my phone horizontally, with its case on. I like minimal design, so I opted to machine a single piece of wood to get it done.

Tablet as main computer

Comparing the Microsoft Surface Pro to iPad Pro

Mar. 7, 2018
I have been using a tablet as my main computer for quite some time now. In this blog post I share you my experience on using Surface Pro and iPad Pro to get my work done.

For the past few weeks I have been using the Microsoft Surface Pro as my main computer. It's a modern tablet computer that can be used as laptop with the type cover. With the Surface Pen, it's a versatile PC that works in a lot of different ways. Time to find out if it's any good and how it compares to my other tablet computer, iPad Pro.

Updating Snake '97

About the challenges of developing a wildly popular game

Feb. 21, 2018
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97 game. Read about the design challenges in this blog post.

Few years ago my brother threw a beer on my iPhone in an Amsterdam bar. The poor thing didn't like the Dutch brew as much as I do: it died. While waiting for a new phone to arrive, I used an old one that couldn't do anything but texting, calling and... Snake! The idea for Snake '97 was born and this month it was time to update the wildly popular game.

Commuting by bike

One week (240KM) on the VanMoof Electrified S

Dec. 2, 2017
One week on the VanMoof Electrified S E-bike testing it for commuting and comparing it to a normal bike.

For a few years now, I commute to work using a bicycle. I have lost more than 15KG since I stopped using my scooter. This week I tested a VanMoof Electrified S, an electric bike with an industrial, minimal design. Is it any good? How does it compare to a normal bike? Will an electric bike make you lazy? Read along to find out!

Collecting health data with Biostrap

Wearing a clinical-grade photoplethysmography (PPG) sensor for a month

Nov. 15, 2017
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.

Most wearables (smartwatches, fitness trackers, etc.) use very basic sensors to capture heart rate. Their signal is binary: just counting beats. Biostrap is different, instead of just checking pulses, it captures a high-fidelity PPG waveform. These waveforms are the same kind that doctors use, making me wonder what I could learn from them!

From tree to table

Designing and creating a night stand

Oct. 23, 2017
Creating a night stand from a raw slab of chestnut wood.

Right next to the house were I was born there was this chestnut tree, sadly it died one and a half year ago. When it was taken down, my brother saved me a slab of wood. I intended to create something from it, a nice "do it yourself" adventure, worthy of a blog post!

Saving a MacBook Air with exploded battery

Don’t try this at home - but I did

Sep. 14, 2017
Saving a MacBook Air with a swollen battery pack.

Last night I had a nasty surprise: my original MacBook Air was swollen due to an exploded battery. I immediately had to take action, for reasons of safety and to preserve this piece of modern computer history. Don’t try this at home, but if you do... read along for some practical tips.

Harvesting boredom to let creativity flourish

using the Punkt MP01 dumb phone

Oct. 1, 2016
What does it mean for my state of mind and creativity if I am no longer be constantly connected to the Internet using a smartphone.

Smartphones are everywhere in the modern society we live in today. Through our 4G and WiFi connections the internet is just one tap away. In fact, it is so close that it feels like a natural extension. But is this wealth of information all good or does it have a downside too? It seems like an interesting experiment to go app-less for a while and solely use a dumb phone.

Batavus Champion bike from 1978

restoring retro glory with some help from the Internet

Sep. 3, 2016
Restore the retro glory of an old bike from the 70s using the internet.

Almost a year ago I bought an old steel racing bike from 1978. I wanted to figure out if using a bike to commute worked for me. It did! I used it to ride more than 1000KM before I decided to get a modern road bike. Now, almost a year later, I decided to put the powers of the internet into good use: to bring the bike back to its retro glory!

All blog posts
Data Centre in Frankfurt
Data Centre in Frankfurt
Lock chain inside a small luggage compartment
Lock chain inside a small luggage compartment
Dashboard and charging connector are integrated into the frame
Dashboard and charging connector are integrated into the frame
Front light is integrated into the frame
Front light is integrated into the frame
What was the last time I got a booklet with my phone?
What was the last time I got a booklet with my phone?
Instead of just counting beats, the Biostrap cloud services analyses the PPG waveform captured by the sensor.
Instead of just counting beats, the Biostrap cloud services analyses the PPG waveform captured by the sensor.
Using the Cyclemeter Pro and a Wahoo Tickr I measured speed and performance during the test
Using the Cyclemeter Pro and a Wahoo Tickr I measured speed and performance during the test
Unboxing Biostrap: it comes well packed in a nice box.
Unboxing Biostrap: it comes well packed in a nice box.
sanding again
sanding again
New school Sensa Romagna Sport '15 and Old school Batavus Champion '78
New school Sensa Romagna Sport '15 and Old school Batavus Champion '78
Smart EQ fortwo (with full electric drive)
Smart EQ fortwo (with full electric drive)
Apple HealthKit aggregating data from different sources and devices
Apple HealthKit aggregating data from different sources and devices
Heart rate variability (HRV) as measured and explained by Biostrap
Heart rate variability (HRV) as measured and explained by Biostrap
First connections made
First connections made
Result on garden table
Result on garden table
Quick access to the trunk is possible through the window, in addition to the flip-down hatch
Quick access to the trunk is possible through the window, in addition to the flip-down hatch
Glueing together
Glueing together
Reading using a tablet computer is not limited to your desk - I like reading on the couch
Reading using a tablet computer is not limited to your desk - I like reading on the couch

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