Forgot your password?
typodupeerror

Comment Re:Stop complaining (Score 1) 37

Yes, yes, they 'sold' it to you and you did pay real money for it, but don't confuse that with you 'owning' anything.

Think of it as the way you 'own' the faucet in your home. You do own the faucet but you don't own the water, even if you pay for every drop you use.

Alexa, Nest, Homepod, etc.... all these devices are basically empty boxes with an internet connection. What you 'own' is whatever they decide to provide and nothing else. (Although they might make decent paperweights.)

Submission + - First Nuclear Clocks Start Ticking in Vienna and Beijing (phys.org)

necro81 writes: Two groups, one in Vienna and one in Beijing, have successfully demonstrated the world's first nuclear clocks. Standard atomic clocks, like the caesium clocks that define the second, operate by observing the transition of electrons between different orbits about the nucleus. The resulting radiation is usually in the microwave range, and can produce clocks accurate to one second in 100 billion years.

Nuclear clocks go a step further, and probe energy transitions within the nucleus itself. Nuclei can arrange their protons and neutrons into different configurations, called isomers. The isomer with the lowest energy is the one usually found; higher-energy ones are only metastable and decay quickly. Usually it takes serious energy — x-rays and gamma rays — to excite a nucleus into a higher-energy arrangement. It so happens that thorium-229 can be excited using UV light with a wavelength of 148 nm — just within the capabilities of some exotic lasers.

It's still been quite a challenge. For one thing, Th-229 is not found in nature; it must be extracted from the decay chain of uranium-235. The Beijing team used just a microgram mixed in a crystal of calcium fluoride.

Although these prototype nuclear clocks are not yet more accurate than existing atomic clocks (one second in millions, rather than billions, of years), they show the way towards what may be possible. Because the energy transition is in the nucleus, rather than the electron cloud, it is less susceptible to outside disturbances like magnetic fields. And the fundamental frequency is much higher (five orders of magnitude), which should yield more precise timing. This development could lead to smaller and more reliable time standards across the world (and solar system).

Submission + - First Nuclear Clocks Start Ticking in Vienna and Beijing (phys.org)

necro81 writes: Two groups, one in Vienna and one in Beijing, have successfully demonstrated the world's first nuclear clocks. Standard atomic clocks, like the caesium clocks that define the second, operate by observing the transition of electrons between different orbits about the nucleus. The resulting radiation is usually in the microwave range, and can produce clocks accurate to one second in 100 billion years.

Nuclear clocks go a step further, and probe energy transitions within the nucleus itself. Nuclei can arrange their protons and neutrons into different configurations, called isomers. The isomer with the lowest energy is the one usually found; higher-energy ones are only metastable and decay quickly. Usually it takes serious energy — x-rays and gamma rays — to excite a nucleus into a higher-energy arrangement. It so happens that thorium-229 can be excited using UV light with a wavelength of 148 nm — just within the capabilities of some exotic lasers.

It's still been quite a challenge. For one thing, Th-229 is not found in nature; it must be extracted from the decay chain of uranium-235. The Beijing team used just a microgram mixed in a crystal of calcium fluoride.

Although these prototype nuclear clocks are not yet more accurate than existing atomic clocks (one second in millions, rather than billions, of years), they show the way towards what may be possible. Because the energy transition is in the nucleus, rather than the electron cloud, it is less susceptible to outside disturbances like magnetic fields. And the fundamental frequency is much higher (five orders of magnitude), which should yield more precise timing. This development could lead to smaller and more reliable time standards across the world (and solar system).

Comment Re:Wait, you don't mean... (Score 1) 39

Also, for about 1 year out of the 4 years of manual drafting I took in school, the exercises were mainly in decimal feet, so we measured tenths instead of inches. The rest it was all decimal inches and thousandths (thou) because we were drawing smaller things.

America is a strange land with strange customs. (an entire customary system!)

Submission + - Google, Unity Launch Platform to Create Video Games From Prompts (straitstimes.com)

An anonymous reader writes: Alphabet’s Google and gaming tools developer Unity Software announced a new platform that will allow people to create video games from simple text prompts, marking the latest incursion of generative artificial intelligence into artistic and creative industries. The initiative, called Playground, will “put game creation in the hands of millions of new creators, and bring new experiences to billions of players worldwide," the companies said in a statement on Oct 7.

With its debut, Playground will let people 18 and older generate and customize games using natural language prompts, “no coding required." Later in 2026, a new expanded creation experience called Unity Spark, will be integrated with Playground, providing “robust, professional-level” mechanics and high-fidelity 3D capabilities. Creators will be able to build “immersive, superlative experiences” with a simple text prompt, according to the release. Playground builds on Google’s push into world models, a type of AI that generates virtual environments in real time from text prompts, rather than just video.

Submission + - Auctioning IP packet sent via RFC1149 in 2001 1

An anonymous reader writes: There is an actual RFC-1149 IP packet being auctioned off via Christie's auction house now until October 13, 2026. This is an IP packet you can actually touch, versus just being an abstraction in the ether.

It is one of the four that was sent and eventually received by the team in Norway that implemented the RFC in 2001 (https://blug.linux.no/rfc1149/)

https://onlineonly.christies.c...

Submission + - AI agents helped an attacker take over a server in under 24 hours (nerds.xyz)

BrianFagioli writes: ReliaQuest researchers investigated a server takeover in which AI agents likely carried out substantial portions of the attack. An exposed job submission feature allowed the attacker to execute code, steal database credentials, and escalate privileges using public tools. No zero-day or new malware was required.

Researchers found a Cairn AI orchestration dashboard on the attacking host and command sequences that corrected earlier failures. They could not determine which model was used or how often a human approved actions. The incident raises questions about how agent automation could let attackers pursue more targets while reducing hands-on troubleshooting.

Comment Re:Sure, way up north maybe (Score 1) 236

You can avoid most of the paint by just ignoring DST. Don't change you clocks. Helps if your work is flexible about hours, but you can always move some evening stuff to the morning and vise versa.

Try it, you will find that it's no real effort to remember everyone else's clocks are off by an hour.

Comment Re:Summary ... (Score 1) 236

Look at Nepal, in the UTC+05:45 timezone. They aren't even the only ones who like to break technology with their non-whole-hour timezone.

The world seems to be moving towards trying to simplify time a bit, e.g. by discontinuing leap seconds. Personally I'd start a project to build a booster large enough to correct the Earth's orbit of the sun to a nice round 256 days, but since there doesn't seem to be much support for that at least we can stop bothering with DST.

Comment Re:Summary ... (Score 1) 236

You make it sound like not having DST is terrible, but most of the world doesn't bother with it.

It's basically Europe, the US, and a few random others including half of Australia for some reason. Everyone else gets by just fine without DST, and much of the world gave it up when they stopped being colonies.

https://en.wikipedia.org/wiki/...

Maybe it's time to think about the hours we do things in general. For example, in Japan most shops don't open until 10 or 11 AM, and stay open until 7-8 PM. That gives people the opportunity to visit them after work or school. Schools and employers set opening times based on local conditions, because there are vast differences between northern and southern climates. It turns out that everyone doing what makes sense for them works just fine.

With things line linear TV and radio becoming less relevant, times also matter less. It's a good thing, it gives us flexibility.

Comment Re:Fundamental physics has never been more dead (Score 3, Funny) 28

Just because everyone was operating on the assumption that high energy cosmic neutrinos exist doesn't mean that it isn't worth proving that beyond all doubt. It wouldn't be the first time if the results was unexpected, or if it turned out a whole load of accepted physics were based on a faulty assumption.

Slashdot Top Deals

Don't get suckered in by the comments -- they can be terribly misleading. Debug only code. -- Dave Storer

Working...