Petri Launiainen's Blog: A Brief History of Everything Wireless

Seeing is believing?

If you think that the World you live in resembles a pancake like is depicted in the adjoining image, and the Sun is just a smallish ball, happily rotating over it in a circular fashion, there are several verifiable issues that should be impossible. One of those is the claim ...

The Equinox is here again

Today is one of the dreaded days for the Flat Earthers, as the hard reality is that the light pattern that their puny 50 km diameter Sun is unequivocally known to create on their pizza-pie Earth today is depicted in the adjoining picture: exactly half of the pizza is lit, ...

Renewables + batteries: the perfect storm

There has been several major inflection points in the history, from the era of Luddites (which they lost) to the era of current non-EV Luddites (which they will also inevitably lose). As I wrote in the previous blog entry, I have been studying the latest battery technologies, and it has ...

Toyota vs. the World

I’ve been researching the advancements in battery technologies, especially from the aviation perspective, and it has been a fascinating journey: the speed of which we are progressing on this particular field is truly amazing. This is happening mostly thanks to the ever-expanding market of electric vehicles (EVs), with China in ...

Russian Roulette with GPS

It is understandable that electronic warfare is crucial on a modern battlefield. Harassing civil aviation hundreds of kilometers away from the battlefield is not. In my book, I go through the history of air navigation, from Non-Directional Beacons (NDBs) to VHF Omni Range (VOR) to Instrument Landing System (ILS). VORs ...

Boeing: “We have no documentation on bolts”

Boeing seems to be going from failure to failure. This is very bad for the whole aviation industry as long as Boeing is the other half of the global duopoly of commercial jetliners. The Department of Justice (DOJ) has opened a criminal review on the Alaska Airlines incident, in which ...

Spain: a good place for watching heavenly bodies

Living in a place with 250+ clear days per year is a boon for someone interested in astronomy and celestial events in general. Here, in coastal Spain, having an early morning walk by the beach lets you experience the starry skies almost every day, and the gradual natural changes that ...

Back to the Hardware part 4 - the anatomy of an EdgeNode

This is the fourth and last part in my “back to the hardware” story. The very first part can be found here, and the previous part here. So I moved to Spain and transitioned from Telecoms gizmos to Edge Computing, SaaS systems and Internet-of-Things (IoT), with ...

Spain: from atoms to photons

Remember when Russia bet 25 to 35% of its GDP on an open blackmail and shut off the gas supply to Europe, only to witness how one of the warmest winters on record, together with the unprecedented collaboration between the European countries, foiled their plans? As a response to this ...

Back to the Hardware part 5: unexpected error

This is the fifth and final part in my “back to the hardware” story. The very first part can be found here, and the previous part here. You thought you did it all by the book: you have tested and re-tested your hardware and your software, ...