A similar thing has happened to me in the past. Brought a phone dock from amazon, and when it arrived, it didn't fit my phone, looking at the serial number on the dock itself, it was for the previous model of phone but the packaging was for the latest.
https://news.ycombinator.com/item?id=23852177 explains it, with a quote from the article. They weren't able to map the whole thing, because of repeating patterns. That's now starting to change.
Some hives have enclosed floors. But modern hives, at least in the UK, now have a mesh floor. Which is there to reduce the numbers of a parasite, varroa. The mesh allows the parasite to fall out of the hive.
That's an interesting question. I'm not sure how you would pump CO2 into a bag and kill a colony. I'm not sure it's an accepted process for doing that. Maybe there's a chance you might accidentally euthanise yourself.
I imagine at the start of the process, he was hoping to just kill the queen, and the entire colony would survive. In that case the other bees would replace the queen, with an emergency queen cell, if this was to happen the queen would probably be as aggressive as the previous generation.
But he mentions that he intends on introducing a queen himself. In which case, I would have thought the colony would calm down.
But I have no idea how much by, because I've never been in this situation.
Well the video at 3 minutes in, with the Bees flying all over the camera and attempting to sting him. You can see them flying towards the chap, and you can tell when they're doing that that, there's some intent that they want to sting you. I've noticed that they like to go for the face. Probably something to do with the chaps breath.
I went on a year long bee keeping course and I've had my hives just for this season. The hives that I have...I thought were much more aggressive than the hive I looked after on my course, But they're no where near as aggressive as those bees. I had a short period of them being more aggressive, and I think that was due to them taking nectar from oil seed rape (A variety of canola) or the sugared water that I was giving them. They've much calmed down now.
Compared with when the guy is meters away from the problem hive, with mine when I've cracked the hive open, doing an inspection, and I'm accidentally squishing them all over the place. I have a few trying to sting me, but not in the numbers that he's seeing.
I'm actually working about 10 meters away from my hive, in my garden now, and I'm not seeing any bees at all.
The only bit of wisdom that I could add to this discussion is that, on my course, I was told that the more genetic variation the bees have the more aggressive they are. If you import a queen from Italy, from an Italian variety, for the first year they'll be calm, but when you get subsequent generations of queens from that Italian queen they get more aggressive. I guess hybrid vigour makes them aggressive. I suppose especially so with hybrid varieties from Africa (Africanised), but I've not heard much about them in my local area.
Ah, this is a really useful topic, following on from the previous post about DIY weatherstations. I'm currently adding my data to wunderground, but I'm not getting a huge amount of value out of it.
Yeah, it's useful if you want a static website for your weatherstation. But I would quite like the current readings, to actually be current, rather than up to 5 mins old.
Yes, they do fail. I guess that's evident by the design of the weather station, as the humidity sensor is modular, so it can be replaced.
Unfortunately, I think this design also means it has a low ingress protection value. The unit I ended up with had the humidity sensor replaced and it still wasn't providing numbers. I think it may have spent a year or so out at sea on a buoy.
I'm using weewx for my weather station. I pulled the weather station out of a bin at my former place of employment, which is an airmar 200wx, ultrasonic wind sensor that's typically used on boats. The humidity sensor doesn't work, so I wrote a python script, that acts as man in the middle, that reads in the data, and when it gets to the humidity values, it replaces them with numbers from a DHT22 humidity sensor instead.