Viewing profile — jedc

It looks like the account where this repo was published was the one used by Google Workspace DevRel? (And that’s the team this guy worked on.) That makes this quite a bit different…

Data points that worry me: 02/1967 - Apollo 1 fire 01/1986 - Challenger disaster (19 yrs later) 02/2003 - Columbia disaster (17 yrs later) It's been 23 years since Columbia, and th…

from the docs: "Wealthfolio does not currently support integration with online brokers or aggregators. Data must be imported from CSV files or by manually entering transactions."

"store contact information and related notes for small and medium businesses" Most likely translation: it affected the Google SMB sales team's Salesforce instance

I was visiting Yosemite a year-ish ago and a guide recommended this app and it was fantastic. My kids also loved getting the real-time info on what they were hearing, and trying to…

(Former submariner here.) Elevated CO2 in submarines absolutely impairs performance. One example: there was a guy on my boat who got migraines when CO2 got too high - he was useles…

I used to row in London on the Thames, and yeah, the tides are nuts. The river rises seven meters in the span of about 3-4 hours. (It takes about 7-8 hours to flow out.)

I got to know Quentin Stafford-Fraser a bit when I was at Cambridge. He's a really down-to-earth guy who was working on all sorts of interesting projects. He's got more details on …

Sounds like the plot of Michael Crichton's book "Airframe" - https://en.wikipedia.org/wiki/Airframe_(novel) (Though in this case the parts were found before anyone was hurt/killed!…

It's unlikely to go offline. They've got the funding to keep it open, they're just waiting on federal acceptance of their continuation plans.

Great Wikipedia reference about this here: https://en.wikipedia.org/wiki/Hexagonal_chess

Years ago I got to know a startup that effectively reverse-engineered the punchcard-like code necessary to run about half of the massive textile looms used in factories all over th…

The main thing is that you need to be moving at least a few knots in order for your control surfaces (rudder, forward planes, stern planes) to work.

The US doesn't have diesel boats anymore. Though other countries (like Australia) do.

antenna buoys on cables? No. But there are VLF antennas that Ohio-class submarines have to receive low-data-rate comms while submerged. Any reasonable communications have to be mad…

Ohio-class submarines (the ones that carry missiles): when they're "on station" they're just tooling around staying as quiet as they can. There's a relevant phrase for them: "Three…

Former submariner here with a quibble on this: > one of the primary reasons subs need to surface , in order to GPS lock While getting a GPS position is helpful, the primary reason …

Active sonar (where a device sends a pulse of energy & listens to replies) can impact marine life. Passive sonar (where you just listen to acoustic energy in the water) is used by …

(former US submariner here) Also commented downthread, but sonar IS always on at all times. https://news.ycombinator.com/item?id=35780124 Honestly, I'm extraordinarily surprised th…

(Former US submariner) Yes, and no. Yes- the US has maps with higher-resolution data on water depth around the world than what's commercially available. No - those maps aren't perf…

former US submariner here: * forward-facing sonar is always being used at all times while a submarine is underway * however, the sonar that's always used is passive, and since moun…

Ah, interesting. So it sounds like they haven't updated the data in ages, either. What I always loved about this site is that Google made it SUPER-easy to visualize just how good (…

That article is only about the lead-generation part of Project Sunroof being shut down. Which makes a ton of sense - it was likely not generating much revenue, but managing a progr…

+1 to basic facts being off. The line that stuck out to me was: "Some APMs had convinced company leadership that we needed a Facebook competitor." Ummmm... no. This was very much a…

Also torpedos (for example, from submarines)