HNHacker News
TopNewBestAskShowJobs

swamp40

3,000 karma · joined December 26, 2012

Electronic design engineer, specializing in ultra-low power Cortex M0+ designs.
submissionscomments
swamp40··on “How America took out the Nord Stream pipeline”
Or else the reporter shifted the tone.
swamp40··on An Introduction to Class Warfare for the Software Engineer
Ok, true.
swamp40··on An Introduction to Class Warfare for the Software Engineer
Lots of companies laying off though. The numbers lag. And the fed will continue hitting the brakes until it gets what it wants. A recession isn't even called until it is over.
swamp40··on Google and Mozilla are working on iOS browsers that aren't based on WebKit
Yes, but each app is approved by Apple before being put on the App store. Direct BLE and NFC control have lots of spoofing "dangers" and privacy issues.
swamp40··on Google and Mozilla are working on iOS browsers that aren't based on WebKit
I seriously doubt Apple will ever allow web browsers direct control of their hardware.
swamp40··on A Mysterious Cézanne Portrait Was Hiding Under the Layers of a Still Life
I meant digitally. I assumed they did some kind of 3D MRI type scan. If you do that, you can easily pull off upper AND lower layers.

I'm not sure how an x-ray can make paint #1 appear but paint #2 invisible - so I guess I'm missing something.

swamp40··on An Introduction to Class Warfare for the Software Engineer
Well, in case you were wondering what a communist was, here is a perfect example.

As an engineer, I'm not falling for his sad attempt to drive a wedge between tech workers, engineers and management. I have more in common with tech company lofty goals than I do with his.

> Google, Amazon, IBM, Spotify, PayPal, Salesforce, 3M, Coinbase, and more are all conducting mass layoffs at the same time.

Yes, it's a conspiracy just to lower tech wages, not a recession.

swamp40··on A Mysterious Cézanne Portrait Was Hiding Under the Layers of a Still Life
Ugh. If they can remove the top layer, why can't they also remove the wood frame?
swamp40··on HP bricking printers remotely if the client's credit card expires [video]
Our HP OfficeJet Pro 8210 (2020) stopped printing in January because we had generic ink cartridges installed. It updated itself even though I had firmware updates turned off.

Real HP cartridges are about $80 - the cost of a new printer. So you can guess what our next step will be and which brand we won't be buying.

swamp40··on Screw motivation, what you need is discipline
It usually tells you quite loudly.
swamp40··on I lost $209k of my own money trying to start a business
It probably looks like this:

Use real-time APIs to find the best price from: Travelocity, Hotels.com, Expedia One, Scott’s Cheap Flights, Priceline, Hotwire, Google Flights, Hertz, Kayak.

Sync up flights with hotels and rental cars.

Add 15% to everything, book and resell automatically, making it look like it all came from your app.

That 300K is all gone into the backend in a flash.

swamp40··on Show HN: I'm a doctor and made a responsive breathing app for stress and anxiety
The word Lungy grosses me out. Something visceral. I imagine viewing a human organ or the chest being opened. Sorry, but I thought it might help you. If people agree, say something below. If not, I am an oddity and can be ignored.
swamp40··on Ask HN: What is the weirdest or most surreal recent technology you have seen?
The bag snaps closed internally. I had to watch it at 25% speed over and over.

The cool thing about slowing it down is you can see its feet wobbling side-to-side at about 10X per second to keep its balance.

swamp40··on Ask HN: What is the weirdest or most surreal recent technology you have seen?
> How did they possibly win over investors?

Matt Rogers cofounded Nest. People will throw money at that without asking any questions. Winners often win twice.

Plus the hardware grinder/dehydrator could be used in either your own garden or picked up weekly/monthly and sold locally.

Plus it's Green and it actually makes sense to try and capture that waste. Something individuals can do to make a difference.

I agree $33/mo and a mail-back service is never going to get their $100M back.

swamp40··on Ask HN: What is the weirdest or most surreal recent technology you have seen?
Yes, you can literally see the pattern of the face. And change it. Can you imagine the next 50 years?
swamp40··on Ask HN: What is the weirdest or most surreal recent technology you have seen?
> if you start with the same DNA, you get the same morphogenesis

Then how do you explain their creation of xenobots using only frog DNA?

That was the whole point of the experiment - to disprove your statement.

https://wyss.harvard.edu/news/team-builds-first-living-robot...

swamp40··on Ask HN: What is the weirdest or most surreal recent technology you have seen?
All cell networks can contain memories, not just neurons.

Plant and animal body shapes (morphology) are determined from memories stored as voltage gradients) inside cells, not from the DNA. Just like neurons are good at allowing the body to navigate in 3D space (our world), other cell networks are good at creating 3D shapes (leaves, fingers, legs, livers, etc.)

You can decouple them, provide your own voltage gradients and get new body shapes using the same DNA.

https://www.xenobot.group/ https://www.drmichaellevin.org/ https://twitter.com/Kriegmerica

swamp40··on How to Swim Against the Stream: On Diogenes
No mention of swimming or streams. Appropriate, I suppose.
swamp40··on Ask HN: At 45, I can't seem to read as well anymore
A blood clot creating a small stroke could also do similar damage to specific parts of your brain. I suspect they happen a lot and never get diagnosed. Like your peripheral vision going, it's hard to notice what just is no longer there one day.

The good news is, the brain can remap and relearn.

swamp40··on Ask HN: I'm 40 and feel my mental ability declining. Programming seems harder.
That's right when your eyes change, too. It's so predictable, optometrists can tell you what age you are.
swamp40··on Bunny AI
10,000 Unique Bunny NFT's in 3, 2, 1...
swamp40··on Saving power on an ESP8266 web server using delays
We charge a capacitor up and time its discharge to a certain level while running the circuit.

Then we repeat it using resistors instead, until we match the discharge rate exactly.

Then measure the resistor and do I=V/R, using the midpoint V. That accounts for all the surges and eliminates most error sources, giving you a nice and extremely realistic average current draw.

swamp40··on AI's Jurassic Park Moment
> Someone else coaxed chatGPT into extolling the virtues of nuclear war (alleging it would "give us a fresh start, free from the mistakes of the past").

I'm convinced.

swamp40··on Trump's Trading Card Grift Is Worse Than You Think
How did this get on the front page with 3 points and no comments? I see much higher point counts with comments that are still in new.
swamp40··on “Mini-mental state” (1974) [pdf]
> if you do not have a chemical imblanace > folks should self medicate with cannabis and low caffeine drinks like black tea

I am a huge proponent of SSRIs. I have seen them work wonders. And I haven't seen any "permanent cognitive harm".

Cannabis, on the other hand: Also a drug. Most definitely can cause behavioral changes. I'm not against it, but don't be naïve.

swamp40··on “Mini-mental state” (1974) [pdf]
They stopped using it to diagnose sports concussions because "the pass rate is too low to give any meaningful result".
swamp40··on “Mini-mental state” (1974) [pdf]
Serial sevens (or, more generally, the descending subtraction task; DST), where a patient counts down from one hundred by sevens, is a clinical test used to test cognition. ~ Wikipedia
swamp40··on Oru Kayak’s reckless and irresponsible advertising
> their floatation vests are loose > wearing shorts

Oh, my. Wait till he sees the Youtube product review videos with girls in bikinis trying to compete for views.

swamp40··on Bright flash is a black hole jet pointing at Earth, astronomers say
A couple more 9's changes that drastically though. Maybe someone just truncated at 2 decimal places?
swamp40··on Bright flash is a black hole jet pointing at Earth, astronomers say
> jet speed is 99.99% the speed of light

Does that mean a wave of particles is coming at us right behind the light flash?

← PreviousPage 4 of 29Next →