Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror

Comment Re:Why they are more expensive (Score 2) 60

Imagine manufacturers getting together to standardise some of these things. Maybe they create a new standard every 5 years. If you want a drone motor you'll know what sort of power supply so what voltage it should take, whether it's a high RPM or lower RPM use case, what power and what weight.

Outside of these custom all-in-one ready to fly drones, drone motors are ALREADY like that. They come in well-defined sizes, they are rated by kV (thousands of RPM per volt) and they have standard mounting holes. If you just don't screw with the fully preassembled drones up front you can easily get that kind of parts interchangeability. You can also buy controller/radio combos which provide the same or superior range to what DJI offers, so the only benefit to buying a prebuilt drone is that you don't have to do anything, and it comes with a number of down sides.

I built my first quadcopter for under $200 all in, including a Devo 5 radio which I could load alternate firmware and an additional $10-ish radio transceiver module into so that it supports all of the major protocols. That's a price with regular range and without FPV, but the point remains — you don't need DJI.

Comment Re:Thereâ(TM)s a scam - somebody has to be th (Score 1, Troll) 12

but the moral of the story is that you can, without recourse unless you are enough of a VIP to raise a fuss that reaches 'Apple Executive Relations', lose everything connected to your account

Nah, that's the reason for the moral. The actual moral is: don't fuck with Apple gift cards — neither a buyer nor a redeemer be. Apple has certainly taught us all a lesson, and that lesson is that their gift card system is insecure and they will punish legitimate customers for their lack of security. Whether it's even possible to make a gift card secure is irrelevant to that lesson.

Comment Re:Who cares (Score 1) 42

You can helpfully provide a "debian" folder and the rpmbuild config that worked on one test system, and all the debian/redhat based distributions take your tarball and then adapt the things you got different from how they do things usually.

Provided your application already has enough users compiling it from source code to justify packaging it in the first place.

Comment Game-key cards (Score 1) 59

I think allo is referring to the "game-key cards": Nintendo Switch 2 cartridges that contain the title screen and nothing else, where the whole game is shipped as a day-one update. At least on the original Switch, Nintendo required the first few missions of the single-player campaign to be on the cartridge. Among early physical games for Nintendo Switch 2, only Nintendo's first-party games and CD Projekt's Cyberpunk 2077 weren't game-key cards.

Comment Start with gcc -fsanitize=address,undefined (Score 2) 78

What would your hardened version of C look like?

It'd look like a subset of C where the compiler emits a diagnostic for every undefined behavior that's practical to detect at compile time and inserts code to catch at runtime everything else the standard calls undefined. The first step toward this is what GCC already does for -Wall -Wextra -pedantic -fsanitize=address,undefined. The second step is that a pointer variable doesn't contain a raw address but instead a base address and index, and every dereference of an array member is bounds-checked against the size of the object it came from. This ends up making the language's strict aliasing rule even stricter, and a lot of pointer casts or union puns become undefined and therefore errors. After programmers become accustomed to stricter pointer provenance, a compiler maker can add a concept of ownership, with a borrow checker to detect use-after-free and the like.

Comment Compare unsafe code in JVM and CLR (Score 1) 78

The problem is that without allowing some "unsafe" operations in Rust or any other language it is impossible to do any I/O or interface with foreign languages like C. It would be totally useless.

If the only programs with permission to escape the language's type system are system libraries signed by the operating system publisher, it isn't "totally useless." It'd be like Java applets, J2ME phone applications, Silverlight applets, XNA games, and Windows Phone 7 applications. Executables for these platforms are in an intermediate representation that lets the loader tell if unsafe was used. If the executable contains unsafe code but isn't signed with the permission to escape the sandbox, the loader raises a security exception. Applications were expected to perform I/O through first-party system libraries signed with this permission. Third parties weren't supposed to be doing "systems programming" on these platforms.

Comment Re:No thank you. (Score 1) 55

In my mind you'd be buying a car without a battery and simultaneously subscribing to a battery service, but if you ever wanted to own a battery you could buy one. You'd get the battery delivered to the dealer (and/or they would work with one or more services directly and keep some on site) before you picked up the vehicle so it would be all the same to you as if it had come with it, and it would also come charged.

Moving them around without a battery at scrapping time is not a detriment, as vehicles to be scrapped are usually moved around with a fork lift anyway.

Comment Re:maximum security prison (Score 1) 56

OK, so if you disagree with 99.9% of what I write, tell me do you agree or disagree with this thesis I wrote a year ago about Islam being at war with the rest of Civilization:
https://f6ffb3fa-34ce-43c1-939d-77e64deb3c0c.atarimworker.io/journal/3...

this position on the government being 'necessary' evil that needs to be controlled because left to its own devices it causes millions of deaths by war and other means:
https://f6ffb3fa-34ce-43c1-939d-77e64deb3c0c.atarimworker.io/comments....

this position that government promoting consumption rather than production with 0% interest rate policies, getting off gold standard, laws and taxes leads to economic destruction, that there are no savings anymore
https://f6ffb3fa-34ce-43c1-939d-77e64deb3c0c.atarimworker.io/comments....

position that government selecting losers and winners by choosing businesses to fund ends up creating inefficient monopolies (space x comes to mind, but this comment is from 2010)
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fscience.slashdot.org%2Fc...

position that USA is printing the dollar into oblivion, gold is real money and should be used as standard to prevent countries from inflating the money supply, that USA bonds are junk, of-course this was 2013 when USA's debt was around 16Trillion, today it is over 38Trillion, things have gotten worse by a factor greater than 2, the world is getting off the USD standard, using other currencies more, bond yields have at least doubled due to the falling bond price:
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fyro.slashdot.org%2Fcomme...

You can say whatever you like about my intelligence but if you disagree with 99.9% of my comments you are quite a bit off.

Comment Fascinating! (Score 1) 36

Now, yes, there are predictions that you could get a supermassive black hole launched into space, especially during a galaxy merger if the velocity of the smaller black hole exceeds the escape velocity of the combined galaxy.

But I'd be wary of assuming that it's a launched black hole, unless we can find the merger it comes from. There may be ways for such a black hole to form that cause the stars to be launched away rather than the black hole being flung, and if a galaxy isn't rotating fast enough to be stable, one could imagine that a sufficiently small galaxy was simply consumed by its central black hole. Both of these would seem to produce exactly the same outcome, if all we have is the black hole itself and a velocity.

I'm not going to say either of these is likely in this case, or that astronomers haven't examine them (they almost certainly have), but rather that we should be cautious until we've a clearer idea of what the astronomers have actually been able to determine or rule out.

Slashdot Top Deals

In computing, the mean time to failure keeps getting shorter.

Working...