My First Mesh

My house is too small to require a mesh wifi system. The router works pretty well when there are four rooms and they are two up, two down. There are a couple of areas of weak signal, especially when using 5G because there are brick walls in the way. A quick swap to 2.4G and it’s sorted though. The 5G signal has a higher bandwidth but the higher frequency doesn’t penentrate solid substances as well as the 2.4G signal.

I have installed a mesh at another house. It was a mostly harmless process. The TP-Link Deco system connects to the internet modem with an ethernet cable and then it all works! I did have to log in to the modem/router and tell it to turn off the wifi that it produces. Then everything is connected via the Deco unit. There are two mesh wifi transmitters and also a LAN going to a simple switch that connects the entertainment stuff up to the internet.

There is a gaming console connected to part of the extension of the mesh and even thgough there is a double wifi lan connection to the internet there haven’t been any complaints about latency. I am impressed.

TCM(t)

I was recently wandering around one of the largest shopping centres in this area with the wonderful Legend when I spotted a dispenser of Traditional Chinese Medicine. I had noticed this shop in the past but hadn’t been bothered to take a photograph. Not this time though. I managed to use my phone to collect the lovely information on their sign.

To Be Honest The Answer Is "Nope"
To Be Honest The Answer Is “Nope”

I think I was drawn to the sign because of the very opaque tape over some of the health claims and I was tempted to look further into what had been once claimed. But let’s have a brief about the things that are problematic. This would be ALL OF IT.

Traditional Chinese Medicine – TCM – is absolutely not a thing that works. During the post WWII period China sent doctors out to the countryside to look after people. Well aware that some places would not have drugs or suitable medicine (defined as stuff that works) the government sent the doctors out with a book that also had a load of stuff that didn’t work. This book had a list of medicine and, for the worst case scenario of no kit, a list of not-medicine that might keep the locals thinking they were being helped. So most of this traditional “medicine” is not.

A Barefoot Doctor’s Manual instead showed what the worst equipped Chinese medics would have to resort to under the worst circumstances.

Dunning, B. “Mao’s Barefoot Doctors: The Secret History of Chinese Medicine.” Skeptoid Podcast. Skeptoid Media, 24 May 2011. Web. 16 Nov 2023. <https://skeptoid.com/episodes/4259>

So, Traditional Chinese Medicine does not work. I am quite concerned about a number of the conditions that the shop claims they can help with; infertility and miscarriage seem to be playing on the emotions of people going through tough situations. A lot of the others are of a similar vein. I’ve looked at their website to gain a better understanding of what they claim but the website just seems to sell boring things and cleverly makes no actual medical claims. They sell; tea, soups, capsules of some various herbs and stuff. It’s all pretty boring “boost your immunity” stuff. The website does have a blog page but the most recent post was 2021.

I do find it amusing and worrisome that people will pay money for this and that practitioners have probably paid money to get “trained” in this stuff. Just think of all that effort and resource that could be put to use in something that actually works.

The Best/Worst Place

I recently took a trip with the Legend to a part of the world that is very strange. If you travel in Kent towards the Marshes and then venture even beyond that you end up at a reclaimed part of the world that boasts loads of special scientific interest because of its geomorphology. I’m not sure what that means but basically it’s quite a special place. So, we have an area of land that is scientifically important so what should we do with it? Let’s place a nuclear power station there – it’s close to the sea and there’s not many people living nearby.

Dungeness Map
Dungeness Map

Some other things to point out, which bother me a little. There’s an airport close by, about 4km according to the map above. This seems a little bothersome. Then there’s also a massive army weapon training area close by, again within about 4km. I know it’s desolate on those ranges because I’ve been there and shot at things. Nuclear power, weapons and aircraft. Nothing much happening there, very little to see!

Nuclear Power - Dungeness
Nuclear Power – Dungeness

There is a strange desolation to this place. It was sunny but windy when we went and you get an idea of how it must feel in a storm. It’s very open and, if I’m allowed to be horrible, feels quite backward. It’s the sort of place you wonder if you need to carry cash or whether cards will work.

It Gets Too Hot

When I use my phone in the car it can get too hot and shut down some of its services. On hot days with direct sunlight my phone will refuse to charge, especially if I am using a Sat Nav service on it. I don’t tend to run my phone at a low charge level but I also don’t want to damage it by making it too hot. I clearly needed an aircon unit for my phone and so I looked online. There are fans that could work but they won’t attach to my Quadlock kit – which I am not changing. So I tried to make a toilet roll tube ventilation shaft to feed air from the blowers on the dash to the phone, this did NOT work!

So, I wondered if I could find some flexible purpose built tubing to feed air to the phone. I ordered some from Amazon and then spent a while thinking how to fix it to the right places without damaging the car. After about a week of ponderance I came up with a small hole in the tubing to fix the device to the Quadlock holder and then cable ties to hold it to the air vent on the dashboard. My phone now stays lovely and cold. But, in classic British style, the weather hasn’t been that hot recently. I’m sure it will get that way sometime soon so I’m quite chuffed at my bodge job.

A solution to iPhone overheating
A solution to iPhone overheating

Just An Annoying Ending

It’s been a while but it’s time for a rant. I’ve been thinking recently about the types of films and series that I like. They tend to feature space travel but ultimately end up being human stories. Science Fiction is just reality set off Earth. All the emotions and activities don’t really change. So, I want to posit a plot to you:

Aliens / discovered Earth creatures seem intent on destroying/enslaving/correcting humans/Earth. They justify this because they observe the terrible way humans treat each other with war and selfishness. But right at the last moment Earth is saved because humans have “love” or some other emotion or device that humans secretly produced and used because they are clever.

I have decided this is most likely an incorrect conclusion to all those stories. Humans are terrible creatures and I think the net morality of humankind is waaay over the side of the bad. Look at what we do:

  • We produce enough food to feed the world, but we don’t distribute it fairly.
  • We could solve disease problems across the world but we don’t.
  • We are very clearly destroying the climate of our planet, have known about it for years, but have done nothing.
  • We have individuals who are richer than the poorest countries.
  • We still have wars even though we recognised that there was a “war to end all wars”.
  • We look the other way from people trying to seek a better life and leave them to drown in the oceans.
  • We cause pain and suffering to children through adult-led organisations and yet allow them to shelter abusers – All churches and many youth organisations.

I don’t think that the feeling of love we can have for each other outweighs these things we do. I don’t think the central pillar of humanity is love. The central pillar of humanity is selfishness and power hunger. I’m not saying all people feel like that but I’m arguing the case that when observed from afar humanity is a pretty shit species. I don’t think the net result of humans being in the universe is anywhere near positive. I suspect the universe would collectively sigh with relief if an alien species decided we should be disappeared [now I’m thinking about the morality of destroying objects/things that have net negative contributions to the universe].

Maybe this is why we haven’t heard from aliens yet. They’ve seen what we’ve done and decided to shut us off from the universal trade system. We have been blackballed.

A Decent Routine

I have, for years, had activity trackers. Many years ago I started with the Jawbone Up I think. I’d met someone in Washington DC who had one and I really liked the look, design and functionality. Over time I’ve moved to Garmin devices because they are better designed. I currently have a Garmin Instinct and I really like it. I’ve probably mentioned it here before but I’m not sure I can be bothered to make the links.

The Instinct can “track” sleep. I think what it does is effectively monitor movement and pulse to decide what stage of sleep you are in. The first main stage of sleep is Deep Sleep. This is when you are absolutely whacked out and probably won’t respond to much stimulation. During this time, which ideally is around an hour your body does some magical stuff. It flushes bad stuff out of the brain that has built up during the day and it also repairs your stomach one third of which gets destroyed through the process of digesting food. After deep sleep the body will cycle through REM and sleep, maybe about an hour of each.

Proud of this sleep pattern
Proud of this sleep pattern

The above readout from my watch is practically perfect. It’s not often I have a night like this. The deep sleep is about right and then the cycles of the other forms of sleep makes a lovely pattern. Below as a contrast is an example of not-so-good sleep. You can see the poor pattern and movement around. The good sleep is reasonably rare as you can tell from the fact I wanted to write a communication about it.

Not So Good Sleep
Not So Good Sleep

This Shouldn’t Be Here

A while back in the before-reboot-times for this website I spotted something unusual in the wild. I took a picture and here it is:

Vape supplies in the fucking medicine aisle.
Vape supplies in the fucking medicine aisle.

I was in a local supermarket and spotted this selection of vapes for sale in the “health” aisle of the shop. Now, I’m going to say that vapes are intrinsically unhealthy. I know that they are probably healthier than cigarettes or cigars – the more traditional nicotine ingestion methods, but they still contain nicotine. Nicotine is one of the most addictive substances we know. Vaping is probably not safe. It’s just better than the alternative. The healthiest thing would be to not use nicotine at all.

I’ll probably be popping into this supermarket again soon to get some cake. I will have a wander and see if this stuff is still in the healthy aisle. Maybe they are hoping to treat this like the “healthier cheese” I see labelled when I go shopping.

This Is Not A Healthy Level

It’s been an interesting and emotional few years to be a human on this planet. I’ve really struggled since 2016 and the UK Brexit vote. Then we had Trump, then Covid. Working through these events has taken its toll and I don’t think things have eased up at all since the start of Covid. For me the sheer incompetence of government and those we look at for leadership has been my biggest problem. In a critical time for global politics we have the dregs and shit of the current tory party “leading” this country. Anyway, rather than descend into utter madness I want to consider safe levels of CO2 in the rooms where I work.

To encourage schools to get back in in person teaching during the pandemic the government went on about open windows and flow-through of air. The concept was that if the air was flowing then the virus would be washed outside with lower chances of infecting anyone in the room – made up science I know and very few actual tests completed on this – so as a proxy for “fresh air” which was a proxy for “safe” the government introduced CO2 monitors in classrooms as a proxy for “fresh air”. If the CO2 level is high it means there isn’t enough fresh air and therefore a higher risk of virus transmission.

So all the classrooms in my place of work have CO2 monitors. Anything that follows in this communication is not a criticism of my place of work. It’s more a criticism of the entire sector and the things we have to put up with as we do our best to educate the young of today for tomorrow. The problems are endemic within the education sector because of poor design and a lack of funds.

Here is some information on levels of CO2 that I have found in many places on the internet.

CO2 Levels
CO2 Levels

Here’s what my working room CO2 monitor said at the end of the working day – and I had only had three out of five hours of work there.

CO2 Levels In A Poorly Designed Room
CO2 Levels In A Poorly Designed Room

The temperature of 19C is a sensible level. This was maintained by having the windows shut. But the problem with that is the CO2 levels have hit over 4500ppm. This is clearly into the “headaches, sleepiness etc” levels of bad gas. If they go much higher then I am at risk should I be exposed for eight hours. We all know I am a teacher. These measurements now explain why some children suffer in stuffy rooms. It explains all those headaches. There have always been stuffy rooms in schools and teachers broadly do what they are told. I will try and teach wherever I have to. It’s not like everyone can have their lessons in the best room at the time.

This measurement of CO2 has highlighted just how little we are served with traditional classrooms. The building I work in is a 21C development. But it is poorly designed with very little through-flow of air. The heating is “ceiling based” – I kid you not – there are radiators in the ceiling. To have a breeze in the room I have to open my windows and many fire doors. This is not really acceptable and I work in a good school with decent resources. There are going to be plenty of places where the conditions are much worse.

What I think has to happen is an assessment of all rooms in schools and then redesign of those rooms or buildings. I know that’s expensive. I know it’s not going to happen. I know people have put up with this for all the past times but now we know and we have to opportunity to change things. To make schools healthier and better to work in and learn in.

Virtual Radar Server – Installed

Up in the dim warm loft of my house is a Raspberry Pi connected to an aerial. I’ve written about this a lot before, the thing tracks specific aircraft signals and then send those data off to a website for them to use to send to the world. I spent a little time yesterday adding the Virtual Radar Server software to the Pi so now I can see what my Pi sees in a useful format. I also have enabled this to be seen anywhere around the world using the brilliantness of the internet and such technologies. This picture shows you the UI and a long range view:

ADSB Receiver Range
ADSB Receiver Range

I think the aerial was picking up about 90 aircraft when I grabbed this screenshot. I still think that’s pretty impressive. Here’s a more local view:

ADSB - Local Details
ADSB – Local Details

I know I have some issues with range detection aligned with how my terraces rooves are arranged along with a bit of a block to the north of the North Downs, but still, I think it’s impressive.

Hidden In The Loft

It has been years since I wrote a communication about my aircraft tracker that’s installed in the loft. I have an aerial connected to a by-pass filter and amplifier connected to a Raspberry Pi which decodes the semi-automatic radio signals sent by aircraft and plots them into a map for me. I also upload the data to a website which anyone can access for a small annual fee. I used to regularly put a “splat” on this site which shows a map of aircraft coverage over a period of time. I have stopped using that part of the software – although I might reinstall it, will have to think about that. Without the virtual radar server all I can do is get a map output of which aircraft are currently being tracked. This was the map I got a few moments ago:

Not A Splat
Not A Splat

It still impresses me how far the aerial can “see”. It would be cool if I could raise the height a little more and have the aerial outside but that would require professional installation so maybe sometime in the future.