No, you also need to calculate the voltage drop over your distance to show to minimum wire sizing, and the voltage and power levels at the ASHRAE minimum temperature, the current level at 156.25% over the wiring at the ASHRAE max temperature to compute the temperature adjusted resistance and show that your wiring meets minimum spec, etc.
It’s not too hard to actually do the computations. But there is a ton to learn. I installed my own 14.85 kW system last year, with batteries, and I spent hundreds of hours just researching everything. I know I went overkill, but the hardest part of the project was just getting up to speed on all the requirements to meet code.
Someday I’ll write up my entire experience and share my site plan I used for permitting in the hopes it will help someone else. But doing solar right is a nontrivial investment for a newbie (like me).
The most difficult part is acquiring the necessary domain specific knowledge, including what your AHJ changed from the national codes. But yes, once you know everything it’s all pretty straightforward stuff.
No, just figure out how much solar you want and buy and accordingly sized charge controller/MPPT.
They will all tell you maximum input volts and amperage. You can calculate watts by multiplying those two and just need to wire your panels in a way that doesn't exceed either value.
This overlooks that the Rubin telescope has a relatively wide field of view and a thirty second exposure time, so LEO satellites do routinely appear in images. The size of the object isn't so important as its relative brightness, so while a car on the surface of the Earth is hard to locate from 400km above, a sunlit car 400km up in the night sky is visible to the naked eye.
It's a problem in that it needs to be handled in data processing, it isn't a problem in that the impacts on science are not too bad compared to the benefits of those satellites.
When you rename a Bluetooth device from your phone, does that affect the name it broadcasts, or only the label applied in the list of Bluetooth devices in the phone?
I know for certain if you change the setting General > About > Name in an iPhone it changes what everyone sees when they look at their list of available Bluetooth devices.
I assume other Bluetooth devices are the same, no? Otherwise how do you distinguish which one of the three million Bluetooth devices within range is your friends Bluetooth speaker you’re trying to connect to?
Some devices come with apps that include proprietary renaming features. Those devices can be renamed.
Your iPhone's rename feature won't change anything for other devices. Maybe Apple is smart enough to sync the renamed device to other Apple devices as well, I don't know about that, but it certainly won't change what the other passengers on your phone see.
You can distinguish Bluetooth devices by their MAC address, that's usually how the rename mapping works.
iPhone BT settings also let you rename devices, but I think that's just a local setting, not like the BT spec has a rename feature. Not sure cause uh, my iPhone broke. But for sure there are speakers that have their own apps that let you rename them.
> I know for certain if you change the setting General > About > Name in an iPhone it changes what everyone sees when they look at their list of available Bluetooth devices.
> I assume other Bluetooth devices are the same, no?
No. The iPhone is allowing you to configure what name it broadcasts. But you cannot just tell another device what to broadcast. That device must have its own mechanism for changing its name.
For example, many Apple wireless peripherals can rename themselves after your user account once you connect them at least once. That has to be a function of the peripheral though, it's not performed by the device you connect it to (past telling the peripheral the new name, of course). Third-party peripherals usually do not have this functionality.
> Third-party peripherals usually do not have this functionality.
What do you mean by ”usually” here?
I’m certain all the regular name brands, eg JBL Bose Sonos B&O etc enable the device itself to be configured with a user set name via their app. I’m certain because I’ve used them and done so.
Almost nobody install apps of their bluetooth device.
People buy the speaker, charge it and turn it on, pair, play music, throw the packaging away, that's it. Usually the bluetooth name refer to the brand and model which is much more convenient to know which one you are connecting to than giving it a silly name.
I wouldn't expect most people to know they can do it in the first place and even those who do like me don't bother most of the time.
I've never had a bose device that allowed this - is that new? And for JBL, it's only the latest gen (or maybe starting with gen 3?) that started allowing it.
As for other brands I own: Jlab, jawbone, pyle, and anker don't seem to have any such functionality that I can see.
So it's far from ubiquitous, sufficiently so that it makes no sense to presume that a bluetooth name is a message from a passenger and can be understood to have any intended meaning.
I don't see why people are hung up on this. Imagine even just 2 or 3 of the same model "JBL SpeakerName" nearby, how would you know whos is whos? Renaming is common.
You would know which one is the desired one because only the desired one would be in pairing mode at that moment. Obviously a collision (if I can say that word) is possible, but unlikely enough for most purposes.
>> Do people collect their bags from the baggage claim area and then immediately reboard an aircraft to exit the terminal?
>> How do the arrivals exist the terminal
You arrive, go to baggage reclaim, then into the "public area". You can then exit the terminal, or go check in for another flight or whatever you like. The point is that once you have left the baggage collection area you cannot re-enter it.
>> Are you not allowed to have a friend who is picking you up assist with baggage claim?
exactly. No-one from outside is allowed into the baggage collection hall.
But equally, we don't get charged for trolly use. So you don't need help. You stack everything onto a trolly (which are there waiting for you for free.)
yes. In the US. that's what I'm saying. This appears to be a very US design. (Although obviously my experience of domestic air travel is limited to a small number of countries.)
An uncompressed 1080p, 60fps video with 24-bit color depth would need around 3Gbps to be streamed. And even if you don't need to stream it, that would still consume a sizeable portion of the write throughput of the fastest SSDs currently available; if you go up to 4K, you'd actually exceed that by a lot (not to mention, 1tb of storage would last for about 10 minutes of video).
I think the context was intended to be "encoded in some fashion on the upload, just it not as AV2 until after the remote end does all of the transcoded variations". I.e. upload as 2x target bitrate AV1 once and distribute as 1x target bitrate AV2 1,000 times and you'll get the same quality without having to encode AV2 locally.
I've actually done a version this for some multi-system live AV at an event before. Between the main software mixer workstations at various fields in the event it was a dumb but simple encoding they could do in hardware at a high bitrate and then in the machine compositing for the livestream out it did AV1 software encoding to upload to the streaming site to minimize bandwidth requirement from the venue and maximize quality on the streaming site. We've since upgraded to hardware with AV1 encode though.
The practical downside is AV2 is only providing a 30% advantage over AV1. For the streaming providers their bandwidth costs are pretty cheap compared to revamping the transcoding infrastructure, so it'd probably only make financial sense once the remove end can do the most complex and quality encoding used and the rest are all simpler.
Why not? If h.264 is the best you can do with minimal resources, you can give it 5x the final bitrate and send it to a specialized/beefy encoding system to become something better.
If you don't encode locally as the video is created, you either need to store RAW frames which takes enormous amount of storage, or you use a different format and suffer quality loss by transcending.
> you use a different format and suffer quality loss by transcending.
Compressing to AV1/h264/265 etc is really only done for the final version, but that doesn't mean that videos are stored in RAW format during editing, where it is very common to store frames locally in Apple ProRes, Avid DNxHD, or some other compressed format that's targeted towards professional editing.
Contrary to AV1 or whatever similar format which offer compression ratios of 1000x and more, these formats have a compression ratio of around 10x. They are very simple, and the quality loss is low enough that it doesn't matter. They also tend to store images with 30 bits per pixel instead of the 24 bpp that's normally used for streaming.
You’re not wrong but I do think it’s worth clarifying that any professional production with a budget, even a modest one, is generally being shot with a raw codec -> edited/colored with proxies -> rendered with the original raw codec where they compress for the final cut.
ProRes and the like are used for proxies or quick and dirty productions that are mostly shooting their look in camera because of a fast turnaround time. This is usually event work on a budget or something for social media.
Well yes? The platforms only accept certain resolution/bitrates and also most of America isnt running 1gig up. They're running 5-30 mbps up. So yeah they need to encode it.
Data caps make that hard. While everyone likes to claim unlimited data, I'm not aware of any providers that don't have a heavy data user clause where they'll deprioritize your data if you're a top ~5% data user (usually somewhere over ~1TB/month).
You also will need _some_ sort of encoding locally before uploading, even if it's minimal, which could lead to issues when encoded again (although there are codecs available to minimize this).
Just over half the world’s smartphone users do (meaning almost half don’t), and certain countries/areas have way more coverage than others. And a massive number of people have limited data per month, which means it’s also a cost concern.
Leaner delivery is not just ethical, but it also makes better business sense.
If all the ice melted it would raise the oceans by something like 230 feet, so modern Vienna would still be above water at 495 – 1778 ft elevation.
Although some estimates suggest Earth loses 20 - 30 cubic kilometres of water to space annually. Plus whatever water is bound up in mineralisation annually.
450 million cubic kilometres of water lost over a 15 million year period would lower ocean by something like … a bit?
The total volume of water on Earth is presently estimated to be around the 1.386 billion cubic kilometre mark.
The volume of a sphere increases to the cube of its radius … carry the 1 … nup, that’s to hard for me.
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