this post was submitted on 06 May 2026
507 points (98.7% liked)
Lemmy Shitpost
39820 readers
3691 users here now
Welcome to Lemmy Shitpost. Here you can shitpost to your hearts content.
Anything and everything goes. Memes, Jokes, Vents and Banter. Though we still have to comply with lemmy.world instance rules. So behave!
Rules:
1. Be Respectful
Refrain from using harmful language pertaining to a protected characteristic: e.g. race, gender, sexuality, disability or religion.
Refrain from being argumentative when responding or commenting to posts/replies. Personal attacks are not welcome here.
...
2. No Illegal Content
Content that violates the law. Any post/comment found to be in breach of common law will be removed and given to the authorities if required.
That means:
-No promoting violence/threats against any individuals
-No CSA content or Revenge Porn
-No sharing private/personal information (Doxxing)
...
3. No Spam
Posting the same post, no matter the intent is against the rules.
-If you have posted content, please refrain from re-posting said content within this community.
-Do not spam posts with intent to harass, annoy, bully, advertise, scam or harm this community.
-No posting Scams/Advertisements/Phishing Links/IP Grabbers
-No Bots, Bots will be banned from the community.
...
4. No Porn/Explicit
Content
-Do not post explicit content. Lemmy.World is not the instance for NSFW content.
-Do not post Gore or Shock Content.
...
5. No Enciting Harassment,
Brigading, Doxxing or Witch Hunts
-Do not Brigade other Communities
-No calls to action against other communities/users within Lemmy or outside of Lemmy.
-No Witch Hunts against users/communities.
-No content that harasses members within or outside of the community.
...
6. NSFW should be behind NSFW tags.
-Content that is NSFW should be behind NSFW tags.
-Content that might be distressing should be kept behind NSFW tags.
...
If you see content that is a breach of the rules, please flag and report the comment and a moderator will take action where they can.
Also check out:
Partnered Communities:
1.Memes
10.LinuxMemes (Linux themed memes)
Reach out to
All communities included on the sidebar are to be made in compliance with the instance rules. Striker
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I've seen this knife on YouTube. It vibrate at ultrasound frequency that makes it sharper than the blade really is and the ingredients don't stick to it, or so they claim. If it really does perform as demonstrated, it's pretty cool, but still overpriced.
If all it does is vibrate why does it need a firmware update?
Download (and print) a knife
How would it vibrate without wpa3 support?
The incredibly silly true answer is that the software industry's love for "deploy early, deploy often" has led to all embedded devices shipping with over-the-air (OTA) update support even when it barely makes sense. The earliest units of a given product run will ship with a minimally viable product build that has lots of bugs, but solid OTA.
Fun anecdote: I had a TV backlight die after about 3 years, and the root cause was a shitty embedded app that incorrectly regulated the voltage for the LED strips.
I don't think that actually answers OP's question. If all it does is vibrate then it doesn't need any software. It presumably just has a single button that turns vibration on/off and maybe cycles through vibration levels. A dumb circuit without even a single chip in it could do that.
Ah, but what if you want it to vibrate to the beat of your favorite song? Did you think about that?
Or in my ass?
No, it's not a poop knife!
A vibrating poop knife might be the next big thing.
I'm just guessing here, but it's probably for battery management and wireless charging, which are tricky problems you're not gonna solve with a 555. I generally trust EEs to not put MCUs where they aren't needed, so this must have been the cheapest/easiest option.
Because it's cheaper to buy a commodity chip and program it rather than get an application specific chip made.
As i said in my original post, "A dumb circuit without even a single chip in it could do that." Vibration units can literally just respond to voltage. It's how electrical devices worked before chips, like old pinball machines and old radios. It works just like how a standing fan works - there's a mechanical motor, and you literally just need to attach plain copper wires onto the motor's contact points and stick the other ends of the wire into the slots of a wall power outlet.
It doesn't...
But the kind of people who are impressed by a vibrating knife are also likely to be impressed by the ability to update firmware. They don't know what firmware DOES, they just know it's modern.
I can hear this image
Don't you think it would vastly improve your stabbing experience if the knife could vibrate the Halloween theme while you're at it?
I’d want it to whistle a spooky tune like a theremin.
maybe scientists discovered new frequencies?
Microphone was a little muffled, fw update supposed to clear that up.
To show you ads, of course. Duh.
Found it: https://seattleultrasonics.com/products/c-200-ultrasonic-8-chefs-knife
452€ 🫠
Noodle-armed motherfuckers could only manage 30 lbs of force with their arms?
Hummm ackchuly, lbs is a unit of mass, it is not used to measure force, they ackchuly mean 136N 🤓
And the wireless charger is sold separately!
JapAnESe sTEeL!!1°!
Then demo cuts the most basic shit any other half decent knife would have no issues with.
So you’re saying it’s ideal for murder because it brings home less damning evidence?
"Hmm, the stab wounds show that this guy was stabbed by an ultrasonic vibrating knife!"
"Really? Those must be rare, what can they sell, maybe a dozen of those per year?"
Reminds me of that guy who burned off his fingerprints and made his way more identifiable.
Vibrating blade that cuts better? Why do I hear Rules of Nature playing in the background
This is good as an accessibility device for people who have trouble doing the proper circular knife cutting motion, but if you can use the proper technique without trouble, it is not really much better or worth the cost.