I’m a senior full stack engineer with a front end focus and 20+ years of agency and startup experience.
I've managed teams and worked as a solo developer, and have strong communication skills. I've been told I'm a fun, intelligent, thoughtful, and reliable coworker!
Most recently, I took over a large codebase for the front-end of a consumer-facing web app, migrating it from Vue 2 to Vue 3 and doubling the feature set.
I’m a senior full stack engineer with a front end focus and 20+ years of agency and startup experience.
I've managed teams and worked as a solo developer, and have strong communication skills. I've been told I'm a fun, intelligent, thoughtful, and reliable coworker!
Most recently, I took over a large codebase for the front-end of a consumer-facing web app, migrating it from Vue 2 to Vue 3 and doubling the feature set.
“Lennox International… developed the first prototype that achieved the Technology Challenge’s standards about a year ahead of schedule. The prototype delivers 100% heating at 5°F at double the efficiency, and 70% to 80% heating at -5°F and -10°F.”
The release goes on to say they expect commercialization and deployment in 2024.
Perhaps I missed it skimming the article, but my question is, double the efficiency compared to what? To the current state of the art cold climate hear pump? Or to a resistive heater?
COP of 2 at 5F is good. But... Mitsubishi has one that is 3.13 at 5F and LG has one at 2.65 at 5F, so this isn't really the breakthrough that the press release claims, the breakthrough is that a US company is doing it.
What they probably meant is that at 5°F the pump can supply 100% of the heat required to keep a house (of certain size) warm, with no other form of heating required. At -5 and -10, it can still extract enough heat from the outside to supply 70-80% of what's needed but you will need other means of heating such as resistive electric radiators to complement the heat pump.
Surely not engineering way of thinking but that's a common heat pump metric for ordinary people.
Efficiency is a misleading word for heating, because the units don't match; they are both energy, but different "type".
The denominator is fuel energy lost, but the numerator is thermal energy change within an area of interest.
A heat pump moves thermal energy from outside, changing unimportant thermal energy into good thermal energy.
This just seems like unnecessary hair splitting to me. Obviously the efficiency of something is subject to the important inputs and outputs involved.
If someone asks: "how efficient is this heat pump at heating my house?" And you start digressing about how that's the wrong question to ask you'll be giving them an impression opposite reality, which is for most people: it will use less electric energy than heat energy it puts into your house, almost all the time.
There are theoretical upper bounds on the COP though. As heat pumps get better, it may some day make sense to say things like "this heat pump is 95% efficient, so there is no point in replacing it".
No OP but yeah heat pumps are very efficient some >300% efficient since you're just "pumping heat" from one place to another not generating it.
Even electric heat alone is 100% efficient no incomplete combustion or degradation over time. Efficient bu much more expensive than just moving heat already in the air.
Ground-source are better for now since they are moving heat from a relatively consistent source the Earth. It's about 15C to 25C one meter down where the ground-source heat pump lines are run.
Generating vs moving heat I think is misunderstood by people or really more likely they just don't care. As long as the bill is low!
If you could really move heat 300% more efficiently than using a resistive heater to generate heat, couldn’t you just move a bunch of heat to power a steam turbine and get a perpetual motion machine?
It's not entirely clear what you mean. But, you say "if you could really ..." as if ground-source/air-source heat pumps don't do this exact thing; do you think they don't work?
Running a steam turbine by pushing water down a borehole to come into contact with a high-temp (>100°C) source has been done; it's not perpetual motion. Energy pumping the water is << energy output from the steam produced. It's solar energy that's being used, ultimately.
No, first of all perpetual motion machines don't exist, will never exist.
The 300% efficiency means if you had 1 Watt you could use it to power a fan and coolant lines to move heat. Or use 1 Watt to generate heat and then once made to move that heat.
The moving of heat already existing in the air (or in the ground) is more efficient than generating the heat and then moving it.
Slightly more precisely: you're using less energy (in the form of electricity used to run the heat pump) than you are moving into/out of the heated/cooled space.
Yeah take the energy you pump from Reservoir A to Reservoir B divided by the energy requires to do that and that's COP. Which you can think of as an efficiency.
Is that elbow macaroni in the window corner a new convention in iPadOS, echoing I suppose the old diagonal hash marks of yesteryear?
I'd have to see it in person, but it looks like "stage manager" occupies a lot of screen real estate for something that is supposed to improve productivity, and it's not clear to me how it plays with iPadOS's existing "split view."
I am not really sure whether overlapping windows was the thing I was missing in iPadOS. I feel like this is gonna fall into the "I will get used to it" category.
My hope is that Stage Manager is configurable in a manner similar to the dock, such that it can be hidden off screen until the cursor hits the edge of the screen.
Stage Manager is a mode that can be toggle in quick settings. When enabled it replaces Split View and Slide Over for multitasking. When Stage View is enabled the “…” button at the top of each window can he used to toggle between Stage Manager mode and single window mode.
Oh, yes - the first time I looked at it was on my phone and I didn't even notice that you could scroll down. I think because the links for Help, Contact, Privacy appear at the bottom of the viewport and those are normally in the footer of the page I just assumed there was nothing below.
I would play the weekend level again. Dunno if I will be remembering to come back once a week, though.
Yeah I am trying to figure this out. I have not been able to reproduce it. It should not be possible; I think the UI state is getting out of sync with the true puzzle state. It looks like you tried VIALS - do you know if you interacting pretty quickly? Using the keyboard or not? Another person reported weirdness with tiles that were supposed to be getting locked in place instead being replaceable. I wonder if the final row was merrily animating its lock into place sequence, then you typed VIALS, and it permitted those to moved, falsely locking them into place in the other word?
I was using the mouse to drag around letters, not the keyboard. It was my first time playing and I was still wrapping my head around basic game concepts, so it's unlikely that I was interacting quickly.
It ought to do a better job of explaining that there are specific words it's looking for. Originally I did explore the game you thought that this game was — create any 3 words using all the loose tiles — but the problem is, there are around 12K five-letter words in standard word game play. My game has an imperfect list of less than 33% of these that can be recognized by most people. It would be too easy to guess an acceptable word, only to have the remaining words technically legal, but not among the remaining guessable words, and worse, possibly offensive. If I limit it to only the guessable words, then for many people, words they reasonably expected to be accepted would be inexplicably rejected.
It would probably make the difficulty guide inaccurate, unless you take the lowest possible difficulty as the guide where ever there is more than one solution.
> My game has an imperfect list of less than 33% of these that can be recognized by most people. It would be too easy to guess an acceptable word, only to have the remaining words technically legal, but not among the remaining guessable words, and worse, possibly offensive.
Given the restriction that you can only guess "words", you need to improve the wordlist anyway. I had "denty" rejected as a guess, which was not a good look when "folky" turned out to be an official answer.
My other suggestion would be to revise the keyboard input - it's much easier to type the entire word I want to guess than to look at which letters are missing and only type those.
And while it's not a suggestion, I would note that your "cruelly challenging" difficulty level is noticeably easier than the levels that are supposed to be below it, because it provides no clues. This makes it much easier to determine which letters go in which word.
Wish I could tell you exactly what I was doing at the time, but I don't remember :( I only remember I was entering guesses as fast as possible even while the slow return animations were going on, maybe it has something to do with that.
The heavier bits: about 800k of that is the .webp animations showing how to play. The actual game has a bunch of image resources — including font sprites for the timer and the tiles — that are probably a few hundred k as well. The regular site stuff is sveltekit.
The game script is around 300k. I used Phaser [0] — I originally wrote the game in Swift for iOS and utilized one of that platform’s gaming frameworks(SpriteKit). I rewrote it in TypeScript for the web and wanted a similar framework to ease the porting.
Remote: Yes
Willing to relocate: No
Technologies: JavaScript/TypeScript, PHP, HTML, CSS/SASS, SQL, Vue, Nuxt, Svelte, Laravel
Résumé/CV: https://www.nathanlamont.com/resume
Email: nathan@biggerplanet.com
I’m a senior full stack engineer with a front end focus and 20+ years of agency and startup experience.
I've managed teams and worked as a solo developer, and have strong communication skills. I've been told I'm a fun, intelligent, thoughtful, and reliable coworker!
Most recently, I took over a large codebase for the front-end of a consumer-facing web app, migrating it from Vue 2 to Vue 3 and doubling the feature set.