From the press briefing: the ship Eagle S was stopped and found to be dragging its anchor.
Or rather the chain; when the chain was raised there anchor was missing.
Coast Guard and Police are on board.
415 karma · joined December 11, 2023
Or rather the chain; when the chain was raised there anchor was missing.
Coast Guard and Police are on board.
True, there was a Chinese ship nearby but its path crossed the cable several minutes earlier.
What is publicly known this time: when and where the cables were cut (locations approximately, times accurately), and that there's a Chinese ship (Yi Peng 3) that was followed by Danish navy vessels, and the ship has been anchored for a week with constant guard from German and Danish (and possibly Swedish) navy.
There's a video[1] by a Finnish sea captain with MarineTraffic history access going over the track of YP3. Since it's in Finnish, a brief summary (or try your luck with auto-translation):
1) The ship sets off with a speed of 9-10 knots, but then slows down to 5-6 knots for 400 km or so, before returning to 9-10 knots. While weather could be a factor, other ships in the area experience no slowdowns. 2) The ship crosses the cables right around the reported break times. 3) There is an additional slowdown to 3-4 knots near a known underwater sand ridge. 4) The ships heading jumps around a bit; again, the other ships do not do this. 5) There is a missing portion in AIS data; however, this is seen with other ships as well.
Now, this is all circumstantial evidence, but is consistent with dragging the anchor on the seafloor for an extended period of time. Calling it sabotage would require establishing malicious intent, of course.
The C-Lion1 cable is predominantly North-East - South-West whereas the BCS cable is NW-SE. They do meet, but the C-Lion1 operator Cinia says their cable broke about 700 km from Helsinki, east of the southern tip of the Öland island. That's easily over 150 km south from where the cables meet.
Also, C-Lion1 was reported broken at 4m, and the BCS cable at 10am the previous day.
Also three-phase AC is ubiquitous here, you need it to run your sauna stove :D
Another fun one, when you have IQ samples, is the polar discriminator: calculate x[t] * x*[t-1] where x* is the complex conjugate, and take the angle with arctan. Feels a bit like magic ("is that all?") but is justified by the theory.
First of all, the pilot is only required for decoding stereo and RDS. Mono FM does not use a pilot, so obviously there had to be a way to detect FM before stereo came along. I linked to a few of the approaches in a sibling (cousin?) comment.
Second, the pilot is embedded in the decoded FM audio. You need to demodulate FM to get to it in the first place. If you look at the waterfall display in an SDR receiver, it might seem like the signal is already present in the original radio frequencies (especially during silent periods), but it's there only indirectly.
If you have silence in an FM transmission (say 96.6 MHz), the only audio component present is the 19 kHz pilot signal, which causes the FM radio signal frequency to vary between 96.6 MHz ± k*19 kHz (not sure what's the value for k, but it's not 1). The sine likes to spend most of the time near the extreme values of its range; plot a histogram of a sine wave and you'll see peaks on either end.
The waterfall is basically a histogram over frequencies so it gets those peaks as streaks on both sides of the main carrier frequency (plus smaller ones for other components in the signal).
https://wiki.analog.com/university/courses/electronics/elect... has some of the analog approaches collected.
Measurements are specified in mm, yes. How well they're adhered to depends on the application.
Factory-made kitchen cabinets, for example, are usually 600 mm wide, and this is pretty spot on (and since it's chipboard it won't warp much). The doors are specified a few mm under, so 597 mm for example.
Drywall comes in at 1200 mm; again, this is quite accurate. The studs then go on a convenient fraction, usually either 400 mm or 600 mm. However, there's much more leeway in precision since you don't see the studs once the wall is up.
And yes, seals and caulking and floor molding and other such tricks are used to cover up gaps where necessary.
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Personal anecdote: we recently got new a new fridge and a new freezer. I'd made measurements of the installation location (1200 mm), checked the appliance widths (595 mm), and figure it'd be tight but doable. Turns out the wall was slightly crooked, and I'd measured it near its widest location. Ended up cutting out the (chipboard) wall on one side.
- On average the market electricity contracts are cheaper than flat-rate contracts
- Day-to-day (and hour-to-hour) variation can be huge; yesterday evening it was 32 c/kWh, tomorrow it'll be about 2-3 c/kWh for most of the day.
- You know the day-ahead prices around noon (UTC), so you can plan ahead.
- EU has a wholesale electricity price cap; not sure what's the current value but it was 500 c/kWh a while ago. Plus taxes, probably.
For most of my career I've worked in mixed teams and can't recall seeing overt misogyny at all within the team. However, there's been a client or two who want to "talk it man-to-man", or simply not believing anything our female technical subject expert was saying before someone with a male name confirmed it, qualifications be damned. I'm sure for every such case there's been 10 I've just not heard about.
Meanwhile my wife, also in IT, hasn't really experienced any harassment or misogyny at all in the past 20 years or so.
The end result is a small minority having multiple guns per person, the majority not having any, so citing Finland as a country with high gun ownership is misleading.
Second, the legislation is very strict. You need to have a reason for owning a gun; hunting and shooting sports are valid, personal protection isn't. You need to belong to a relevant association (such as hunting clubs or shooting clubs). You need proper locked storage in your apartment. Carrying a gun in public without a reason (such as going to a shooting range) is forbidden, and even then should be minimized.
Should you violate any of these conditions, you're liable to lose your gun license and all guns will be seized. Also the police may revoke the license on suspicion of violent behaviour.
So, if you want to get a gun, you have to live squeaky-clean. Illegal guns are of course another matter.
Disclaimer: I was in his Basics of Speech Processing class in the university. One of the best (and funniest) courses I had.
The author speaks of visiting Åva island in Brandö (county). That place is tiny; the population of the county is 436, split between multiple islands. It can't really support a booming service industry. Again, go check out the main island, that's where the party's at.
The author also complains about high fees on ferries if you're just driving through. The ferries are small, and primarily for the locals to move around; the high fee discourages drive-thru on purpose. Imagine you're trying to get to the other island for work or whatever and there's 300 cars queuing for places on a 60-car ferry.
I've had the classic visual sawtooth pattern exactly once, but the nasal stuff was there maybe 75% of the time. What seems to have helped was blood pressure medication.
The 600 MHz to 6 GHz referred to currently used communication frequencies.
(But aren't joint injuries usually soft-tissue as well? It's the ligaments that get the short shaft.)
I've dislocated my kneecap a few times and the near-immediate swelling was much worse than the actual injury. Recovery took a few weeks anyway so easing my discomfort for a couple of hours made no difference.
1. Define sin/cos as ratios in a triangle 2. Draw a unit circle with an appropriate triangle in the first quarter and note that for the vertex on the circle, x = cos alpha and y = sin alpha. 3. Assuming it holds for values of alpha > 90 deg, extend sin/cos definitions to match.
Don't quite remember how one got derivatives from that, because trig and calc were in separate modules. Possibly via the sum formula.
I was thinking if the dots need individual actuators. I'm old enough to remember dot-matrix printers; take the print head but put slightly beefier pins on it, move it left and right and use it to push metal spheres up in a hour-glass shaped cavity, with springy walls in the center section.
Obvious problems: how do you reset the spheres? And wear issues.
Edit: You could replace the hourglass throat with a plug valve (shared between pins). Print head comes along, turns the valve open, pushes the necessary balls up, closes valve, moves to next column. Needs more mechanics per cell, though.
Background: I studied the basics of accounting on 8th and 9th grade, and acted as a treasurer or auditor in some university student associations. I accepted the traditional presentation as a given; "it'll make sense in the end".
Then I learned the negative number thing and the sums-to-zero concept and suddenly it was completely clear what was happening. Ledger manual's "Principles of Accounting with Ledger" was where this finally kicked in.
https://ledger-cli.org/doc/ledger3.html#Principles-of-Accoun...