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I'd rather use something that works with block device directly, rather than something that depends on the filesystem code and may lead to filesystem corruption and potential for kernel instability. Also it seems like a weird design decision to fill flash with files, when in Linux there's trivial access to block device directly.

It's also possible to write 64bit address of each 8 byte block to every such block, and avoid pseudorandom generator, and potentially have more insight to what happened when the block ends up mapped to unexpected location.


A very wide angle lens.


I would have appreciated if there were better captions on the photos rather than repeating “While the public believed the Hughes Glomar Explorer to be a vessel for deep sea mining, CIA was really using the ship to search for a sunken Soviet submarine.”


How about as annoying as Cortana?


A sudden lack of population at certain ages.


To me, it is clear you are referencing jaundice for the second one, but I am not sure what plants are good for that.


I think they're talking about coffee, iirc there are some studies that show it helps with liver cirrhosis which can cause jaundice


Plectranthus barbatus


It was more a referende to the act of boiling water. The observer at that point might not yet know if it's just a correlation or not. Just gathering information.


Milk thistle is the historical one. NAC is the modern one.


Milk thistle supplements are popular for liver health.


Checking the DOCSIS standards, maybe 2013?


DOCSIS 4 gear that can do symmetric for many homes has really only started to show up in the last year.

High-split DOCSIS 3.1 topped out at about 1.5gbit/sec upstream shared among all customers on a segment.


The problem with DOCSIS though is contention; not 'headline speeds'. I'm sure you could have ran a gigabit network on DOCSIS back then; but since that all networks have split the CMTS nodes more and more. If you enabled gigabit in 2013 on most networks it would have ground to a crawl because there was too many users per segment. Since then the networks have split the segment(fewer people competing for the same resources) and also the tech has got better with 3.1 and now 4.0. It's not quite as simple as flipping a switch and giving everyone gigabit.


How'd you figure?

DOCSIS 4.0 spec[1] was first issued circa Aug 2019 and has undergone 6-10 revisions since.

[1] https://www.cablelabs.com/specifications/search?currentPage=...


They're looking at DOCSIS 3.1

"up to 10 Gbit/s downstream and 1 Gbit/s upstream"

Most of the 4.0 improvement is upload.

3.1 wouldn't do 2Gbps symmetrical, but it would do 2Gbps down with a reasonable up.


wow. This is incredible for multiple reasons.

I've seen apps that somehow read what looks like an ecg from the h10, so maybe there's further pretty pictures to be made. Not sure why they'd be helpful, but this is certainly cool to look at.

It's amazing how much information this device throws off, and it all usually gets simplified down to Heart Rate only.

Thanks at the very least for a sample project that I can use to mess with some data acquisition in the future.


Hey no worries and thanks. It was a break-through for this project to find the H10 gives accelerometer data as well as heart rate, so that it would be possible to estimate breathing rate, which I haven't seen other apps do


Isn't it possible to estimate breathing rate with any optical heart rate monitor? See https://en.wikipedia.org/wiki/Photoplethysmogram#Monitoring_..., afaik that's how Fitbit, Apple Watch etc do it


Yes it's common to estimate breathing rate based on the oscillations in the heart rate pattern. But estimating it from the chest expansion is a more direct method


I never knew the H10 used an accelerometer, I wonder if they use it to help remove false reads during intense movements like those found in running.


If you pick the letters strictly in order, it spells out the words. If you pick the letters by word, you can guess what word as there are only so many words. It'd be like watching a touch typist on a unlabeled keyboard for another example.


FYI, huge PDF. $ ls -sh DataBookV2.pdf 103M DataBookV2.pdf


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