HNHacker News
TopNewBestAskShowJobs

catketch

88 karma · joined March 26, 2020

submissionscomments
catketch··on Tesla Model Y overtakes Corolla to be world’s best-selling car in 2023
Not any more
catketch··on Janet for Mortals
Take a look at fennel. Same author as Janet, but it transpiles to Lua. https://fennel-lang.org/
catketch··on These Are the $439,000 Missiles the US Is Using to Shoot Down Mystery UFOs
No laser designation needed. Aim-9x have full infrared and UV imagers in the seeker head. A white balloon in the sun floating in cold air at 60,000 feet might as well be a lighthouse
catketch··on Military shoots down another high-altitude object, over Lake Huron: officials
Turboprops have a max ceiling of around 30,000 ft, while these types of balloons can easily be more than twice as high. Really not the right mission profile
catketch··on Electrify America “fries” EVs at charging stations
In terms of things cars typically have on the wheel/stalk, on the Tesla stalk can only invoke rinse or a quick wiper clearing -- you can't turn wipers on/off, change wiper speeds or turn on/off auto wipers from the stalk.

fog lights cannot be activated from the stalk

Also you say that climate is on the steering wheel ---- Where is that? Unless you are talking about being able to invoke the speech command, which is a bit different

Other things like defroster activation is more of an issue of tablet vs physical buttons / controls

catketch··on Show HN: Two-way Jira sync in a collaborative spreadsheet and Gantt
How does this play with issue type hierarchies used in advanced roadmaps —- goals / initiatives
catketch··on A submarine made from IKEA jar and legos
Radio control will work in a pool. High angle helps and lower frequency transmitters work better than high (so 75MHz, not 2.4GHz). Salt water would absorb radio transmission so results would be much worse in ocean or salt water pool.
catketch··on A submarine made from IKEA jar and legos
this is great. The fix for the lid flex changing boyancy was also an opportunity: an internal motor that could push the lid up a variable from the inside would allow the whole container to act as a ballast trim tank for very small adjustments. Some RC subs have similar smalll diaphram tanks to complement the larger main ballast (sometimes just for fore-aft angle trim)
catketch··on Forth: Stack-Manipulation Operators
What would you call HP’s RPL then :)
catketch··on Analytics suggest 96% of users leave app tracking disabled in iOS 14.5
Right next to the togglswitch, there’s a learn more link that explains in more detail...

Tracking Apple requires app developers to ask for permission before they track you or your device across apps or websites they don’t own in order to target advertising to you, measure your actions due to advertising, or to share your information with data brokers. If you give your permission to be tracked, the app can allow information about you or your device collected through the app (for example, a user or device ID, your device's current advertising identifier, your name, email address, or other identifying data provided by you) to be combined with information about you or your device collected by third parties. The combined information can then be used by the app developer or third parties for purposes of targeted advertising or advertising measurement. The app developer may also choose to share the information with data brokers, which may result in the linking of publicly available and other information about you or your device. When you decline to give permission for the app to track you, the app is prevented from accessing your device's advertising identifier (previously controlled through the Limit Ad Tracking setting on your device). App developers are responsible for ensuring they comply with your choices. In some circumstances, the app developer is not required by Apple to ask for your permission. The app developer may combine information about you or your device for targeted advertising or advertising measurement purposes without your permission if the developer is doing so solely on your device and not sending the information off your device in a way that identifies you. In addition, the app developer may share information about you or your device with data brokers without your permission for fraud detection or prevention or security purposes. However, the data broker must be performing the fraud detection or prevention or security services only on behalf of the app developer, which means the data broker cannot use the information about you or your device for any other purposes. You can control whether apps can ask for permission to track you. If you don't want to be asked for your permission by each app that wants to track you, you can disable Allow Apps to Ask to Track. On iOS and iPadOS, go to Settings > Privacy > Tracking. On tvOS, go to Settings > General > Privacy > Tracking. When you disable Allow Apps to Ask to Track, any app that attempts to ask for your permission will be blocked from asking and automatically informed that you have requested not to be tracked. If you previously gave apps permission to track, you can tell those apps to stop tracking you at the same time you disable Allow Apps to Ask to Track. You can also control the tracking permission on a per-app basis. On iOS or iPadOS, go to Settings, tap an app, then tap to turn off Allow Tracking, or go to Settings > Privacy > Tracking and tap to turn on or off each app displayed in the list of apps that have requested permission to track you. On tvOS, go to Settings > General > Privacy > Tracking and select the app in the list below Tracking.

catketch··on History of Logo
This was an interesting read. I grew up with early personal computers of the eighties and in the geographic area described in the history, so a lot of it is nostalgic. At that time, programming on early home computers generally meant using BASIC (and maybe poke’ing some assembly code) before getting into “real” languages like pascal, Fortran and c in college. I remember thinking logo was a ‘baby’ language and only for kids—-it wasn’t until later on I appreciated some of its features and it’s ties to lisp.

Programming languages like REBOL (or the modern variant Red http://www.red-Lang.org) seem to build on many of the same ideas.

catketch··on A-Shell: Terminal for iOS
Blink is mosh based... works great
catketch··on Show HN: I made a macOS app to let me draw on the screen while on video calls
I like it, nice and simple. I tried it with Astropad so I can markup from an iPad and that works pretty well.

couple of things:

when screen annotation off, two finger scrolling gestures don't work (though scrolling with arrow keys for example still does). Not sure if that was intentional

It would be nicer if the erase tool was a real eraser, and not just a way to clear the full screen (since turning off annotations already does that anyway

catketch··on Show HN: I made a macOS app to let me draw on the screen while on video calls
I imagine it would work w/ Astropad if you aren't on Catalina for Sidecar

edit: I tried it w/ Astropad.... works great

catketch··on SQL is a better API language than GraphQL – Convince me otherwise
Introspection and query building make client apis easy and quick to develop. In production deployments, you can limit introspection and persisted queries are used to ensure known query loads and characteristics. This lets you iterate a lot faster on getting the right set of apis vs trying to do this type of evolution with rest endpoints.

Part of the point is also to weave a cohesive tree of information from possibly diverse data sources, and it’s incredibly good for that.

catketch··on Your First THINK C Program
I used to work on this product (and think Pascal, Think Reference and other cool stuff). Fun times and a lot of great developers.

When compiling, there was a modal dialog that would show the name of each file being compiled...they went by fast even on early macs. Michael Kahl sped it up even more by figuring out that QuickDraw’s DrawText routine was still slow enough to be impacting compile time. So a custom blitter was made to replace it and a fast compiler got even faster.

← PreviousPage 2 of 2