News for hackers. Stuff that matters.

roomey

Re:EMudhra Intermediate CA Compromise on Tuesday October 20, 2026 @11:48AM (#50168199)
I'm on the same Firefox version on android and they are blocked now
You got a ton of responses!

I am very much in agreement with you. What language do you do the design in?

I have hand written a bootstrap MD file in English, which guided a Greenfield implementation. Do you actually use a UML language?

I suspect there is a missing language (abstraction) here, English can be a bit unclear and ambiguous. Perhaps an AI dialect?

Re:Supersonic Trebuchet [video] on Friday August 21, 2026 @05:08AM (#49385615)
A 3d printed ball like in the OPs video would only be less than 3grams I imagine.

Either way, the weight of the whip is hardly important right, as you are just doing an energy transfer from the falling weight into the small ball, the lighter the whip the better, as long as it doesn't break. If the whip is heavier, it will soak up the energy budget in momentum

Re:A U.S. Strategy to Prevent the Creation of Mirror Life on Wednesday August 19, 2026 @06:37AM (#49359638)
He is an excellent writer. Like one of these people who predict the near future in sci-fi.

The kill decision book is particularly apt at the moment.

Re:Supersonic Trebuchet [video] on Wednesday August 19, 2026 @06:35AM (#49359622)
I think the fix is essentially a whip, that's what I meant by elasticity and flexibility.

If you want to accelerate a weight quickly in a single swipe, (simplified) gradually reducing the mass along the length of the whip imparts more kenetic energy at the end (the whip crack).

So the arm would no longer be rigid, although you can see in the OPs video it isn't actually fully rigid.

Re:Supersonic Trebuchet [video] on Wednesday August 19, 2026 @06:03AM (#49359332)
Thinking this approach out, could someone correct me if I have this wrong.

So he gradually increases the energy transfer from the weight to the arm over the course of the drop. But that arm swinging around must have a lot of energy loss due to friction and air resistance.

This loss will rise exponentially with the speed increase right? So in a sense he is holding his energy budget in a very inefficient phase, with high losses.

Two things support this. A) he spent a lot of time trying to make the arm more arodynamic. B) The spool widening at the end, which is essentially changing back down gears, applying more torque, right at the end when you want speed.

An alternative would be to drop the weight, and let it fall unrestricted until it gets to it's highest speed (this would minimise friction and air resistance) and only at the end of its fall, transfer the energy into the arm.

In this case the arm would only need to rotate 180 degrees or whatever, and not waste energy rotating right?

And then, to take this a step further to make this work there would need to be some flexibility or elasticity in the system to take energy from the high speed falling weight to the arm.

And what you have ended up with is something that looks like.... A whip!

Re:A U.S. Strategy to Prevent the Creation of Mirror Life on Sunday August 16, 2026 @01:52PM (#49322130)
Written about as sci-fi in "Change Agent" by Daniel Suarez. Which is a good book in my opinion
Re:You have been mislead about lightbulbs on Saturday August 01, 2026 @09:17AM (#49134189)
I had that dimming issue in my house... And got the gas boiler serviced cause it had a problem with the ignitor, and all the dimming stopped.

Now the house is ancient, so I'm guessing there was some sort of short happening that was causing this.

Re:The Human-in-the-Loop Is Tired on Friday July 17, 2026 @04:14AM (#48944608)
We've started calling it "Human on the hook" instead of human in the loop in work.

It is more accurate, in terms of, it only matters when something goes wrong.

Hi Simon, nice article. The parent there may be making the same assumption I am, that large enterprise _never_ pays sticker price.

Also, to just color in the picture here, as I haven't seen it mentioned elsewhere, there is a very large Saas company at the moment who has given everyone unlimited tokens on Claude. And they have a dashboard showing who spends the most. So the "budget" went from about USD500 per per person (split between Claude and cursor) in Jan to... Well a soft limit of USD100k... Per month... Per person.

People can still see the top line sticker price on their spend, but honestly I can't believe that the Saas is paying that full price when the invoice comes in.

That said, there are some finance reports which are probably dropping soon where we will find out!

Your gonna get flagged and all for this comment..... But I agree.

Is there a HN frontend that filters out mentions of AI, it would make a nice change... Maybe I should AI code it /just joking

Re:Steam on Linux Use Skyrocketed Above 5% in March on Thursday April 02, 2026 @03:18AM (#47611046)
Check your mouse focus settings in your desktop environment (gnome/KDE/whatever).

There may be an option called mouse stealing prevention or something, but if you have a look you should hopefully see it. On xfce it's in its own tab in the mouse menu

What do you mean by copied? Ireland was colonised by the English for many years, and was part of their common law system during that period.

When it became independent, all laws weren't suddenly repealed, some were just ammended over time (as any common law system does). It's my understanding that Irish Courts can still refer to court cases from other common law countries in terms of precidence, even now

Re:Operational issue – Multiple services (UAE) on Monday March 02, 2026 @08:11AM (#47217545)
There are two AZs down right? Is the whole region not down at the moment
Re:Thought-Terminating Cliché on Monday February 09, 2026 @08:59AM (#46945272)
Ah sure, lookit
Re:Why E cores make Apple silicon fast on Sunday February 08, 2026 @08:16AM (#46933938)
Genuine question, when people talk about apple silicon being fast, is the comparison to windows intel laptops, or Mac intel architecture?

Because, when running a Linux intel laptop, even with crowd strike and a LOT of corporate ware, there is no slowness.

When blogs talk about "fast" like this I always assumed it was for heavy lifting, such as video editing or AI stuff, not just day to day regular stuff.

I'm confused, is there a speed difference in day to day corporate work between new Macs and new Linux laptops?

Thank you

A feed of the posts from the global feed
Is there a feed of your global feed? A meta feed? If I download an opml it will just go out of date right?
Is there an RSS version of the weekly newsletter about Wikipedia articles?
Re:XFCE Is Great on Monday January 12, 2026 @01:48AM (#46584956)
I have to agree. In fairness I am biased in that I have used xubuntu (xfce Ubuntu distro) for many years, but the one "feature" is that now I find it hard to use any other OS because of "perceived latency".

I see a top comment here speaking about an inefficient architecture.. that may be the case under the hood, but if you use it for a while, the "click lag" is very noticeable when you move off it.

Maybe it's not a good thing! /s. When I started a new role, I had to use a mac for a week until IT did a Linux swap out, and I found it so frustrating. Mostly the inability to set shortcuts that were muscle memory, but also the lag.

I have noticed lag more on a brand new iPhone (the pro one) then on my face... Which is something

I assumed it was because windows 10 went out of support a few months ago
Re:Project Gemini on Monday November 17, 2025 @11:40AM (#45955263)
You forgot the "and off by one errors"
Re:Proton Mail Outage on Thursday October 30, 2025 @05:39AM (#45758040)
Seems to be recovering now
Re:Proton Mail Outage on Thursday October 30, 2025 @05:22AM (#45757940)
Bridge doesn't seem to be working either, webapp will not load
Re:Entire Linux Network stack diagram (2024) on Monday October 20, 2025 @01:25AM (#45640355)
I'm not sure if this takes into account para-virtualized networks on VMs, ie. VMware vm's with "virtual" hardware access

It's been a few years for me tho, so perhaps it's covered with the VM section.

Lovely diagram, thanks for sharing it!

You can also buy a cheap cd player and some CDs from a second hand store

Older »