This winter I went to Colombia.

I wanted to meet electronics people, build cool projects, learn from others and make videos.

Today I published the second and final video from the trip.

[Read more…] about A Colombian Robot [VIDEO]

Back in the days, when I was just a teenager, I remember reading about the “water analogy”.

Comparing electronics to water.

I didn’t like it.

Because I didn’t get it.

I found a lot of things that just didn’t make sense to me when thinking about circuits as water.

[Read more…] about The water analogy didn’t do it for me

I’ve had a great time in Colombia.

Meeting family and friends.

And building electronics.

I’ll create and publish part 2 of the video blog as soon as possible.

(You can find part 1 here: https://youtu.be/hYhQrczSRoU)

[Read more…] about At the beach, building a nose

This email contains a crucial piece of information.

There’s no need to waste time trying to understand how any circuit works before you get this:

The amount of current flowing out of a battery is the same as the current flowing back into it.

[Read more…] about What goes in, must come out

As a kid, I tried to see the delay between me flipping the light-switch and the light turning on.

“There must be a delay”, I thought to myself.

“Something has to travel from the switch to the light, right?”

But no matter how hard I looked, I couldn’t see any delay.

The light seemed to turn on exactly the same time I flipped the switch.

[Read more…] about When I tried to “see the delay”

Yesterday I climbed the hill of three crosses.

It’s a popular hill in Medellin for doing a Sunday hike.

Green and beautiful.

When you get to the top, it’s a great view of the city.

Suddenly I’m seeing new things:

“Oh, there’s a golf course over there.”

[Read more…] about The hill of three crosses