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db48x

8,265 karmajoined 15 tahun yang lalu
db48x

Submissions

I Made Timelapses of Artemis [video]

youtube.com
1 points·by db48x·2 bulan yang lalu·0 comments

Elon Musk gets an apology from California regulators as a SpaceX lawsuit settled

apnews.com
32 points·by db48x·2 bulan yang lalu·7 comments

I thought I was a "Free to Play" player until I audited my microtransactions

old.reddit.com
3 points·by db48x·7 bulan yang lalu·3 comments

Happy Smallpox Eradication Day [video]

youtube.com
2 points·by db48x·7 bulan yang lalu·1 comments

[untitled]

3 points·by db48x·8 bulan yang lalu·0 comments

comments

db48x
·5 menit yang lalu·discuss
Often the bigger difference is just that fiber never goes in a straight line, even if it’s going to the right city. All that pesky geography gets in the way and makes the path longer.
db48x
·8 hari yang lalu·discuss
We should port it to Rust.
db48x
·8 hari yang lalu·discuss
In theory you would be right. In practice you have to ask all of your competitors for permission to change anything, and all the old copper is still there. They never actually swapped it out for fiber! You cannot take out any of their old copper, even though you’re sure it’s not in use by anyone, to make space for your new fiber.
db48x
·8 hari yang lalu·discuss
Ziply is a regional ISP. They serve the states of Oregon, Washington, Idaho and Montana. Here’s a map showing their backbone links: https://ziplyfiber.com/~/media/Residential/modules/Columns--...

> I can also get 400Gbit in my office…

Sure, but remember that we’re talking about _residential_ services here. Ziply Fiber offers 50Gbps to all residential fiber customers. They also sell IP Transit services to businesses at higher speeds, but we’re not talking about those.
db48x
·8 hari yang lalu·discuss
False! Ziply Fiber offers speeds up to 50Gbps. https://ziplyfiber.com/internet/multigig
db48x
·9 hari yang lalu·discuss
If someone working for me wrote that I would fire them.
db48x
·11 hari yang lalu·discuss
It’s not to keep malware from walking the heap, it’s just a simple protection against simple buffer overflow attacks. If a process running on your computer has a fixed–sized buffer allocated on the heap and I send too much data to fit in the buffer then part of what I send will overwrite whatever comes after that buffer in memory. Well, that means that it will overwrite the heap header objects that windows uses for memory management too. That can be an important step in exploiting the overflow bug.

But Windows picks a random number for each heap and XORs the heap header with it. This means that every time you run the program the headers have to be XORd with a different random number before Windows can understand them. I have no way of predicting what that number is, so the malicious data that I send won’t be XORd with the right number to fool Windows.
db48x
·11 hari yang lalu·discuss
The title seems to describe exactly what the video is about. What made it seem like clickbait to you?
db48x
·14 hari yang lalu·discuss
I know, it was just a joke :)
db48x
·15 hari yang lalu·discuss
Wow, 102°F. That’s just an ordinary summer day in most of America.

It’s pretty shameful that the hospitals couldn’t handle the influx. Didn’t they expand capacity after COVID?
db48x
·15 hari yang lalu·discuss
Not arguing, just saying that sometimes things come with compromises. It shouldn’t be surprising to anyone that some expansion cards don't fit in the expansion slot. There’s always going to be _something_ that needs a bit more space.
db48x
·15 hari yang lalu·discuss
Now you’ve got two things plugged into your laptop, instead of one that sticks out by an inch. :)
db48x
·15 hari yang lalu·discuss
There’s nothing to “get”. The circuit doesn’t fit inside the slot for expansion cards. You could plug in a dongle instead, but then you’d have a big hole in your laptop with a cable sticking out. Or you could just get a wider laptop bag. They make them in multiple sizes, you know.
db48x
·15 hari yang lalu·discuss
> The OP didn't claim you didn't provide specific feedback, it was that they were entirely ghosted mid-process. And that others said the same.

Eh, if even a small percentage of those emails end up in a spam folder then there are going to be people who think that they were ghosted. They didn’t ghost me. Alas, they didn’t hire me either.
db48x
·18 hari yang lalu·discuss
You’re welcome.
db48x
·18 hari yang lalu·discuss
Anathem is excellent; why do you call it “so, so bad”?
db48x
·18 hari yang lalu·discuss
But surely the photo has the same value to you no matter how much effort it took. Sitting outside in the cold next to your telescope while you take the photo doesn’t make the picture more valuable than sitting inside at your computer taking the photo.
db48x
·19 hari yang lalu·discuss
Love that second footnote.
db48x
·21 hari yang lalu·discuss
It’s worth noting that the latest trillionaire lowered launch costs by ~10×. It has never been cheaper to launch a telescope into space. I’m surprised that no universities have launched their own space observatories. Harvard has a $50 billion endowment, but all they ever seem to spend it on is more administrators. They could launch a dozen space telescopes without making a dent.
db48x
·21 hari yang lalu·discuss
I don’t think the telescope has to be sitting next to you. Actual astronomers take pictures remotely all the time. They don’t ride a shuttle up to the Hubble Telescope when it’s their turn to take pictures with it, they put coordinates into a website. Even most ground–based observatories are often operated remotely. Many of them are visited by astronomers too, but more and more that’s an optional step.

Many astronomers work at yet another remove from operations. They don’t even take the pictures themselves! They collect data from other people’s observations instead! A lot of modern observatories collect so much data that there’s not enough people to look at everything in detail. Whole–sky observatories that take hundreds of photos to image the whole sky every night, satellite missions like GAIA that observed a billion stars to determine their position and velocities, etc, etc.