Can’t wait til someone makes a Gemini prompt to find these public keys and launch a copy of itself using them.
Readit Newsevo commented on Google API keys weren't secrets, but then Gemini changed the rules trufflesecurity.com/blog/... · Posted by u/hiisthisthingon
I wish them the best, but to my knowledge most metal laser sintering setups involve powders so fine as to be both a fairly serious health concern and (depending on the metal) a plausible fuel-air explosive if there's sufficient concentration in the air.
It's not something that instills me with confidence when they self-describe as "scrappy", I'd like to see extra vigilance into the safety concerns.
evo commented on iPhone 17 Pro and iPhone 17 Pro Max apple.com/iphone-17-pro/... · Posted by u/meetpateltech
IIRC, iPhones (and every other smartphone) records variable frame rate videos (VFR), whereas professional cameras can record constant frame rate videos (CFR).
I think that VFR videos need to be re-encoded into CFR videos in order to be able to work with all the footage shot by different devices. It sounds to me like with the Genlock feature, it could actually be possible to record CFR videos on an iPhone and also synchronize the iPhone with other devices so that both video and audio does not drift relative to other devices. But that's just my speculation as I couldn't find any details about the Genlock feature.
I would love to know how the team working on 28 years later handled synchronization of the multiple iPhones they were using to shoot some scenes of the movie and if they got a helping hand from Apple, which perhaps allowed them to use some internal APIs to access hidden features of the camera stack...
One of the big use cases for Genlock these days is when you're doing virtual production with LED walls; you want to make sure the screen refresh of the wall is locked to the shutter of the camera. It's almost like 'vsync' in video game video settings, without it you risk seeing tearing in the backdrops.
evo commented on Do the simplest thing that could possibly work seangoedecke.com/the-simp... · Posted by u/dondraper36
Another way I like to think about this is finding 'closeable' contexts to work in; that is, abstractions that are compact and logically consistent enough that you can close them out and take them on their external interface without always knowing the inner details. Metaphorically, your system can be a bunch of closed boxes that you can then treat as boxes, rather than a bunch of open boxes whose contents are spilling out and into each other. Think 'shipping containers' instead of longshoremen throwing loose cargo into your boat.
If you can do this regularly, you can keep the _effective_ cognitive size of the system small even as each closed box might be quite complex internally.
evo commented on YouTube audio quality – How good does it get? (2022) audiomisc.co.uk/YouTube/S... · Posted by u/fhinson
Is it possible to run the recorded input through the filters twice, doing the second pass in reverse to cancel out the phase shift?
Yeah, I think that’s traditionally the route when you’re not running with near-real-time constraints. I’m out of practice with DSP/filter math but I think there’s a constraint such that any theoretical filter that doesn’t impact phase must be symmetrical around the time axis such that it requires “knowledge from the future” that’s not available in real time.
EDIT: And I think with the two-pass approach you need to calculate the filter such that you get the desired effect after two applications instead of one.
evo commented on YouTube audio quality – How good does it get? (2022) audiomisc.co.uk/YouTube/S... · Posted by u/fhinson
Why would it be 6.5 ms late? It's not much, but way larger than I'd expect. I never knew encoding might shift the audio track.
I imagine the lossy encoding process could use a bunch of stacked filters to cut away imperceptible frequencies, but filters in the general case are implemented by summing delayed copies of the input and can smear the output in the phase domain. (There’s a branch of filters that avoid this but require computing the introduced delay and shifting the output to compensate.)
It’s a noticeable problem in audio production if e.g. a filtered kick drum goes out of phase and sucks amplitude when mixed with the original.
evo commented on Los Angeles fires expose inflated US home prices reuters.com/breakingviews... · Posted by u/petethomas
Can we fight fires with a fleet of AI powered drones? I've watched water bombers [like this](https://www.youtube.com/watch?v=JrOESRoD1Jk) near my hometown. It seems like a lot of the water could be better targeted, and round trips to a body of water and back are long.
I feel like the thrust-to-weight dynamics on multicopter drones don’t really lend themselves to heavy payloads like water bombing in the quantities needed. An additional issue is that, due to wanting to maximize power density for the high amperage motors, you often end up using lithium-polymer battery formulations that are less than adequately shielded for the possible impacts the drone might incur. I would be concerned that the risk of a drone failure itself igniting a new fire in a remote area would outweigh the potential.
evo commented on The reason why music is getting worse openculture.com/2024/09/t... · Posted by u/lr0
My take is that this (and similar effects in other media) is the consequence of the rise of targeted advertising. Prior to the advent of surveillance capitalism, there was a vested interest in the development and refining of subcultures.
Someone in the media would identify a new nascent subculture, invest in catering to it, and in the process create a new demographic that advertisers could pump money into to address a specific audience. Ugly and capitalist, sure, but on the flip side, if you were a member of one of those subcultures, there'd be a steady flow of investment into the community you considered yourself a member of. If you listened to the Grateful Dead, someone would be there to sell you peace signs and tie-dye shirts. If you listened to emo punk, well, Hot Topic. The money the advertisers paid would go back into the magazines, critics, studios, etc. that would then further promote, develop, and refine the subculture--a virtuous cycle of sorts.
Google et al. negate the need for any of this. If you want to sell tie-dye shirts, you buy a slot on the "tie-die shirts" keyword. It's (arguably) more efficient for the advertiser, but, it eliminates the economic incentives for subcultures to exist. So they don't. Everyone is their own one-person-addressable subculture, which is essentially identical to one sprawling morass of culture.
What little money remains flowing into the media system chases the spontaneous flash-in-the-pan meme hits that broadly appeal, because that's all that's left.
evo commented on Did Sandia use a thermonuclear secondary in a product logo? blog.nuclearsecrecy.com/2... · Posted by u/terryf
What is it that the author thinks is particularly unusual about this image? Pretty much every schematic of a Teller-Ulam type weapon -- a schematic which you will find in every introductory Nuclear Physics textbook -- shows a large cylinder with a spherical fission device at the top and a cylindrical fusion device at the bottom, plus some FOGBANK-type material of unconfirmed purpose. This image looks exactly like those schematics except that someone has imagined some little channels which look like they're intended to move energy from the primary to the secondary. Without detailed simulation and testing, a prospective weapons designer has no way of knowing whether those channels are representative of a real weapon, or just a superficially plausible hallucination.
Overall this looks like someone asked a physics undergraduate to spend an hour imagining roughly how the well-known schematic might be fitted inside a real warhead case. It probably is exactly that. I can't imagine that showing it to the North Koreans advanced their nuclear programme by any more than fifteen minutes.
I feel like the most novel aspect of this image is an implication of the shape of the reflective casing at the far rear of the device--it seems to suggest a parabolic "shaped charge" sort of focusing element that likely helps to boost the neutron flux and initiate the "spark plug" from the rear at the same time as from the front.
I have what is probably a dumb question:
How can a Raptor turbopump need almost double the HP of a F1 while putting out 1/3 or 1/4th the thrust? (Assuming Elon's 100k HP number was correct, and/or hasn't changed). That just doesn't settle out for me. If it's got double the power, it should be moving double the fuel, so double the power, no?
Perhaps it has to do with the relative densities of RP-1 versus methane?