521–530 of 576 posts
Not that it's particularly useful as this device let's you gain root access via TCF anyway without authentication. But maybe this password is reused in other areas...
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> 4x the rated current > That's many orders of magnitude An order of magnitude is 10 times, in my timeline.
The relationship between the amount of overload and how fast the fuse is supposed to blow is quadratic, not linear. As an example with somewhat made-up numbers, at 1x it might take hours to blow, at 2x it might take a minute or two, at 3x it shouldn't take more than a second and at 4x it should be nearly instant. If it's supposed to blow in 0.1 seconds when overloaded by 4x, then taking 10 minutes is many orders of m…
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I always wondered why we cannot find hot filled appliances in the old continent. Also, I wonder why compressors in heatpumps are not multi-speed (basically energy consumption can be modulated). If you are an expert please let me know I'd love to talk more.
> I always wondered why we cannot find hot filled appliances in the old continent. You can find them but they'll be in the semi-professional space and above (relatively expensive high-duty). They're very rare in the consumer space because - it requires running more hot water lines / extensions, historically houses are built with lots of cold water lines but hot water lines only where required - for their heating requ…
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It isn't code to run 120V receptacles off of a 240V circuit. That's a recipe for a fire that your insurer will not cover. You can do a shared neutral to two 120V loads in limited circumstances.
It doesn’t surprise me that it’s not code but it’s common and I’ve never heard of an insurer doing anything at all to verify your electrical isn’t a total disaster. Either way GPs point that the lack of 240 stopped / stops US washers from having water heaters is unfounded. There’s almost always a cable with 240 not two feet away. Another thing I didn’t think about is that a lot of people (not me) have sinks in their…
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> With the power supplies of this era, this pair of devices probably pumps 16w idle. Running 24/24 7/7, they probably consume as much as a small fridge as a whole. The LCA of the solution must be consterning as well, especially compared with few one dollard microcontrollers. At the average cost of electric in the USA this amounts to under $2/month. Seems negligible to me? https://www.wolframalpha.com/input?i=16+watts…
Please send me 2$/month if you don't mind.
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Hah, weird to see micromuse come up. I started working for them two weeks before the acquisition was announced!
Ha! I did support there for Proviso— the product of a startup that Micromuse had acquired not too long before the IBM acquisition. I started in between the acquisitions.
Didn't have a huge amount of interaction with the US side of things though!
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>> To be honest, the whole thing was a bit scary, since I was very close to the mains I laughed at this. Changing a fuse is… a bit scary? They literally teach this in elementary school in the U.K. - or they did. As you say, no need to fretfully check the fuse - either it blows or it doesn’t, and you’ll know when it does. At least he didn’t find the receptacle holding a dead fuse, carefully wrapped in the ceremonial a…
I don't know how old the author is, but I'm not surprised when people even 10-15 years younger than I am (I'm in my 40s) shy away from digging into the guts of how things work. I feel like I was at the tail end of when it was ok to experiment with technology as a kid and teen. The early '00s brought much more in the way of disposable, locked-down devices. Kids growing up today (despite the educational push of orgs li…
> TCF seems to be closedly tied to Eclipse ecosystem. The Getting Started guide suggests several plugins for Eclipse as the main way to interact with tcf-agent. I tried installing these plugins on a new version of Eclipse and it is absolutely impossible. There are dependency issues everywhere and when you actually try to install the missing dependencies, Eclipse does not let you because they conflict with some other…
This is also what happens whenever I try to install anything that uses the package managers for python or perl. For some reason, these two always fail with messages about conflicting, non-existent, or failed-to-compile dependencies. I work in bioinformatics - everything is in python or perl. My life is pain.
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for laundry - cold/warm setting + cold water detergent is popular these days, further reducing the heating requirement.
Oh yes, what's up with that anyway? I recently noticed laundry detergent companies making some magic "wash in 20 degrees Celsius" product, and heavily advertising it on the grounds of energy savings. I wonder how that works. I'm not sure my washing machine can even go as low as 20 degrees.
20F isn’t an uncommon water temperature for water coming from the city. Can even go a tad cooler in the winter.
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If we're comparing apples to apples all the time, sure. I think it's pretty obvious to most people who care to look that a 60w conventional bulb uses more energy than a 15w LED bulb (which, for the record, is the 100w conventional equivalent). Consider, however, these questions: If my 2000w heater is running on the 800w setting and turns on when my room has dropped below the point I consider acceptably chilly and tur…
> I think this makes the case for, at least, a kill-a-watt style device. A whole home solution with sufficient report granularity and a report interface visible in the home would be worth the extra trouble, IMHO. You can have per circuit monitoring, you need a CT for each hot conductor and a submeter with enough CT inputs for all of the circuits in your panelboard.