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ravedave5

1,122 karma · joined November 26, 2018

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ravedave5··on Chainguard Images now available on Docker Hub
I just heard of this today and I was like OMG this will save me so. much. time. chasing engineers and teams and creating work around for dumb stuff that the base images refuse to fix because it's a "false positive". I unfortunately HAVE to fix all high CVEs, regardless of peoples opinions.
ravedave5··on Ahab's Leg Dilemma
If which leg isn't mentioned than they can get any actor actually missing a leg (any leg) to play the part in a play/movie. Might be on purpose it wasn't mentioned.
ravedave5··on NASA's New Horizons Discovered a Large Surprise in the Kuiper Belt
I'm surprised to see a clickbait headline like this on HN. Thanks for posting that info.
ravedave5··on Oreo Cookie Treatment Lowers LDL Cholesterol More Than High-Intensity Statins
Cholesterol is so wacky. I spent 8 months trying to control mine. Oatmeal everyday, near vegetarian and calorie restriction + weight loss almost got me back to normal, but I couldn't quite do it as well as statins. At home testing devices are great but at $10/test it's hard to test more than once a month.
ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
You're using pounds, so you're in the UK - you have many more watts in a standard outlet than in the US. An electric kettle in the US takes over twice as long as one in the UK. Now try using that to cook a meal...
ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
Of course Technology Connections has a video covering this. https://youtu.be/zheQKmAT_a0?si=xoh5OInHkovn2bqG&t=1230
ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
Technology connections has a good video on boiling water. If you have a good way to dump energy into the water, it will boil fast.

https://www.youtube.com/watch?v=_yMMTVVJI4c

ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
54c is brutal, what's your off peak cost?
ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
This is over 5 times the wattage. You could probably melt metal with this if you had a dry pan and this had no sensors.
ravedave5··on Impulse Induction Stove: boils water in 40s and has backup battery for outages
I have experience with induction on an off-grid solar/battery setup, they are awesome and so much more efficient than old electric burners. A standard outlet is good enough for a single induction burner, it heats water faster than a junky microwave. Let me try my hand at some math around this, it may be wrong as I am a lay person.

This requires 15amp service (from FAQs), so it can pull (120x15) = 1.8kw from the outlet. I will assume you can draw the 3kwh battery to 0 (good lithium/over provisioned).

If this thing can output 10kw on a single burner, assuming no overhead for fans, which it will certainly need, it will be using 10-1.8 = 8.2kw from the battery, the rest coming from the wall. Battery is 3kwh. So it will be able to run for (3/8.2x60) somewhere around 20 minutes at this rate before dropping back to 120v outlet power.

20 minutes seems like not much, but that's cooking at an incredibly high heat. Stir fry needs like 3/4ths of that power, and it's done in ~5 minutes.

A more likely scenario is you want to make a a nice spaghetti dinner but you are impatient, you have 3-4 pots going. Steaming carrots in one, boiling noodles in another, browning meat and also simmering sauce.

So lets look at it as one 120v burner, plus 3 battery powered ones. If they also work at 1.8kw then the run time would be 3x1.8 = 5.4kw. 3/5.4x60 = ~33 minutes. In reality the steaming/noodle burners would need a ton of power for a few minutes, then only 1000watts. The browning burner probably needs 1200 and the simmering one 600-800.

Seems like a pretty brilliant idea to add the battery. You suddenly made a single induction burner setup into a 4 burner setup. I have a hard time imagining a single meal that will get close to emptying this. The FAQ says if the power goes out you can make 3 meals on this stove-top. I have 4.8kwh worth of batteries and I can make ~2 days of meals (coffee/oatmeal, soup/hot chocolate, spaghetti) off the battery in winter, and run my lights, charge phone. I agree 3 meals would be easy, and I bet you could stretch to more if you were judicious.

edit - fixed formatting.

ravedave5··on Dear Google Cloud: Your Deprecation Policy Is Killing You (2020)
No cloud provider is immune to this, Azure dropping support for MariaDB is going to cost us a lot of money in migrations. It's a pretty terrible migration at that.
ravedave5··on mAh Is an Industry Mistake
We really need a 'Nutrition facts label' for electronic devices/batteries.

Usage Facts

Serving size: 1 hour

Servings per charge: 3.5

Total power (watt-hours): 56

Voltage: 12

Amp hours: 4.57

ravedave5··on Developing on and for Chromebooks is a terrible experience
It's so bad. Old apps are grandfathered into features they don't have in their new APIs yet. Trying to write an android app for chrome also sucks, there's missing functionality. The APIs are all documented but in the most confusing way so you never know if something will work until you try it. Terrible, never doing it again.
ravedave5··on Tumblr’s core product strategy
Seems like they have the right idea. I signed up after the first twitter meltdown and I had a hard time using it. I couldn't find good communities and when I did I didn't know how to engage.
ravedave5··on Methods for increasing efficiency of solar cells with silicon and perovskite
Those are a few percent higher than the Silicon/Perovskite cells that will supposedly begin production this year. I don't understand if this is a new type of perovskite or a novel method of applying it. https://www.reuters.com/business/energy/perovskite-solar-goe...
ravedave5··on Simple exercise to eliminate gastroesophageal reflux (2022)
Well what the heck, I've been working on handstands and my GERD went away. I also lost weight so I attributed it to that, but this might be part of it. "after beginning daily LES exercises, I noticed that I could bend over at the hip and pull weeds in my garden without acid running into the back of my throat" - At the start of training headstands I'd have reflux so I had to do them at the right time of day to not make it terrible. Over time this went away and I'd have to eat a full meal right before to feel the same now. I wonder if I trained this muscle similarly.
ravedave5··on Ask HN: Has anyone switched from a professional job to a more manual one?
I suggest working out instead. With manual jobs your back hurts? too bad - you have to go in. If you want to be physical be physical, you don't need a job to tell you to do it.
ravedave5··on Microsoft Freezes Salaries for 2023
Except they already did layoff 10,000 people....
ravedave5··on Gezellig – a word that encompasses the heart of Dutch Culture
I think craic from Irish would fit into this. Not sure if there's a broader category there.
ravedave5··on Best printer 2023: just buy this Brother laser printer everyone has, it’s fine
I purchased an ancestor of this model 10 years ago. It still works. TEN YEARS! My mother got hers 8 years ago, she's printed over 8,000 sheets (there's a service page you can print that tells you). She's looking at replacing it because it jams sometimes now. What an incredible product, I cannot recommend it enough.
ravedave5··on How to start a rocket engine
This is such a great book. Even if your chemistry knowledge is minimal read it for the anecdotes.
ravedave5··on Improving Students’ Learning with Effective Learning Techniques
From years of editing wikipedia the first sentence sets off alarms for using weasel words "many students", "some people". I hope the rest of the paper is more rigorous.
ravedave5··on What Is This Singularity?
It's kinda shocking this was written in 1994. Mostly everything has held true (including questions if moore's law will hold up).
ravedave5··on Study Suggests Fructose Could Drive Alzheimer's Disease
There are links between plaque found on teeth and the alzheimers plaques. There are some studies that introduction into the bloodstream may cause issues. https://www.nia.nih.gov/news/large-study-links-gum-disease-d...
ravedave5··on Rails on Docker
I still have battlescars from capistrano. What a pain. So much easier with docker.
ravedave5··on MuscleWiki: Find exercises that work specific muscles
As someone who has been working out for a year this is great. I still don't know all the muscle names and I am still exploring and finding exercises that work for me.
ravedave5··on How are you doing?
Defining your emotional state more granularity is an actionable insight. Just like the 3rd time a pod goes down with the same error message you're like oh yeah it's this and this and boom we're back up and running. Recognizing your emotions means you can figure out solutions and apply them again.
ravedave5··on Ask HN: Is your memory as bad as mine?
One thing I found out that made me feel much better about my memory is that I have a GREAT memory for things I personally care about. Stuff I don't care about is gone, poof. Oh well, it can always be found later. Names I've always struggled with, that's probably something different. If you're forgetting stuff that doesn't really matter who cares?
ravedave5··on Apple Rankings
We got organic bananas because the regular bananas were all green. They were SO GOOD. Bananas are so damn cheap overall we just always get the organic ones and they do seem overall better.
ravedave5··on Undetectable very-low frequency sound increases dancing at a live concert
Rocket launches must have so much of these frequencies. Being at one was nothing like I expected after listening to the audio of launches on normal devices.
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