In the context of a planing catamaran, flying refers to allowing the windward hull to lift out of the water in order to minimize wetted surface area. These boats, especially the Hobie 16, were quite popular in the 70s and 80s.
Ha ha, we were taught to keep our optimist bathtubs halfway out of the water when sailing downwind back then. I mostly joke but no one called that flying :).
in those wonderful little square boats the reason for tipping the hull was to reduce the amount of weight it surface and dragged through the water. It was still floating, being held above the bottom by buoyancy,so definitely not flying.
The fact that they got it to work is interesting in a way because given the lack of hull length the two surfaces controlling the pitch are right next to each other.
A mini-PC like a Lenovo m720q or m920q can be had for about $120 on secondary markets. It works great for me as a frigate server. I'm using it with 6 cameras and plan to add couple of more. If you look around on ebay, you might able to find one with 16gb ram and even a m.2 or SSD drive included. Then get the m.2 (A+E) version of the Coral TPU board ($30-35). That can be inserted into the wifi board slot. The m720q has a i5-8400T. While it's a 8th gen intel CPU , its more than capable of handling Frigate , as well several other applications if you run it in Proxmox or even barebones install. It has one m.2 for storage slot. But can also hold one 2.5 inch SSD. So you can drop in a cheap nvme drive for boot & OS. Use a much cheaper larger SSD for video storage. (what i've done)
I second the sibling comment that it was absolutely possible to have animated icons on Windows 3.1(1).
I was only 11 or 12 at the time, but I distinctly remember the two Windows 3.1(1) machines in our school computer center having animated icons on their desktop in '93 or '94, but I know I couldn't do the same on my own PC at home, so they must have had some extra software installed to make that possible.
My assumption today is that being so long ago it would be some other format, but Wikipedia says GIF format was released in 1987 so it might have been.
You could in fact make icons animated, they were not gifs as far as I remember and I can definitely see it crashing windows 3 with 2mb memory sticks. I still have those memory sticks laying around.
I wear a 3M 7502 half face respirator behind my 3M Speedglas autodark mask and it fits just fine. A proper integrated system would be nicer but this setup is safe and works for 1/10th the price. Also if it's not too hot and humid I can leave safety glasses on which is convenient for grinding--just flip up the visor and go for it, no safety squints needed.
There already exists tight constraints on field grade. The mounting hardware has limits to how much one section can differ from the next. You can imagine that you need each horizontal beam some maximum number of degrees from parallel, and the vertical posts will only have so much extra length to account for variation.
Some of my fondest childhood memories are summer visits to my great uncles farm. Playing with a cow magnet in the dirt under the bench grinder in the tractor barn is one of them. I remember them being strong, but I was 10.
