Hacker Newsnew | past | comments | ask | show | jobs | submit | sdh9's commentslogin

Why is vertical speed in m/s? It should be in fpm.


It’s been required in the US since 2020. But, ADS-B would not have played a factor in this incident.


They had the correct SID, but the wrong runway.


They were taking off facing such direction that made runway 24 right be visually on the left, which may or may not have been a factor in them apparently loading and flying the left one even as they confirmed on the radio that they are flying the right one. Possibly tired or distracted pilot.


It's very active in the amateur radio community.


On the surface, it seems like CW usage should be in a decline because 1) CW is no longer required to get a license in most countries and 2) digital modes like FT8 are clearly superior at very low signal-to-noise ratios.

But the bands tell the opposite story, as crowded as they often are. I think the primary reason to use CW these days is because it's fun, it feels like you're really doing something and not just delegating the whole task to the computer, and CW is definitely far better than SSB for DX at low, possibly QRP, power.


"very" might be an overstatement. but it does exist there


I don't think it's at risk of being overstatement. CW bands are more crowded than ever before, because there are more CW ops than ever before.

This is, I think, because it's easier to learn than ever, ham radio equipment is more capable for a cheaper (adjusted) price, and ham radio has grown tremendously worldwide due to all barriers being lowered a bit.

CW is very popular, especially given all the other options that are easier.

That it's a smaller percentage of hams that know CW than before is another way of saying ham radio has expanded well beyond CW and the population has grown. But if you have a finite resource (bandwidth) and it's in significantly more demand than ever before, it's a hard argument to suggest that it's not 'very' active.


In the 2024 field day contest that lasts 24 hours, 490,813 Morse code contacts were made between participants. Just turning on my radio now I heard more than 10 conversations in Morse happening and that was just on one of the 10 popular frequency bands.


31,628 people participated in field day 2024. google says there are ~750,000 amateur radio licenses in the US and ~3 million world wide. my experience with field day is that it attracts the most dedicated subset of radio amateurs, a group which (also in my experience) vastly over represents cw users. combined with the point of field day being to make as many contacts as possible, combined with cw being one of if not the best way to make difficult and long distant contacts.. can you see why i doubt field day results are an accurate representation of normal, average amateur radio?

i have attended club meetings and activities, hamfests local and around the US, participated in online forums etc for many years. morse code isn't a big topic anywhere outside of very specialized contexts, such as field day and qrp operation.


It's still "easy" to strip DRM from Amazon books but you need an actual Kindle to do so. If it's something that you would like to do, it might be worth investing in a cheap used Kindle even if you never plan to use it to read.


I thought they removed that, even with a hardware Kindle? I managed to download all my ebooks via a python script before that, as I've purchased 100s of books via Kindle throughout the years, but seems they've disabled the approach I took at least:

> As of 26th February 2025, Amazon has removed the ability to download backups of your Kindle books. Unfortunately, this means that this tool is no longer functional - https://github.com/treetrum/amazon-kindle-bulk-downloader

After removing that feature I kind of feel like it'll just be too much of a hassle, so stopped buying books via Kindle. But haven't found any better alternative either to be honest.


That's for downloading files from the website.

You can still use Calibre to remove & decrypt the files via USB from a Kindle.


Why does it need to? What value does that add?


You don't really need to type long form text on it. The primary use of the keyboard on the MCDU is for the flight management computer, and aviation fix names are 3 or 5 letters at most. That is the primary design case for the keyboard. ACARS is secondary, and on a typical flight only a few long-form text messages are sent.

Every aircraft that I've ever flown has an alphabetical keyboard. Typically horizontal space is valuable, yet vertical space is less valuable, so it's easy to make the keyboard long but not wide. However, as others pointed out, it seems to be changing in newer jets.


I volunteered at a museum when I moved to a new city, thinking that I would meet people. I determined that exactly two types of people volunteer at museums: students/recent graduates that want to build a career in that field, or retired folk.

I wasn’t in a phase where I desired meeting either of those groups, so while volunteering was a positive experience, the social aspect of it was not.

I actually felt a little guilty volunteering-- the selection process was a little competitive and I didn't want somebody who wanted to get a start in their career turned away.


You’re free to purchase a Dell, then.


Not if you work for a local council or whatever, and need to develop an iOS app for some reason.

Then you pay, because they basically force you to use their hardware, software, connectors, formats, billing services, etc every step of the way.


Apple has a monopoly on usable trackpads.


Pis eliminate variables, for sure. But, if you stick to name-brand business machines off lease, I doubt you'll have a problem like that.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: