From Nature.com (emphasis added):
Here, we describe easily deployable hardware and software for the long-term analysis of a user’s excreta through data collection and models of human health. The ‘smart’ toilet, which is self-contained and operates autonomously by leveraging pressure and motion sensors, analyses the user’s urine using a standard-of-care colorimetric assay that traces red–green–blue values from images of urinalysis strips, calculates the flow rate and volume of urine using computer vision as a uroflowmeter, and classifies stool according to the Bristol stool form scale using deep learning, with performance that is comparable to the performance of trained medical personnel. Each user of the toilet is identified through their fingerprint and the distinctive features of their anoderm, and the data are securely stored and analysed in an encrypted cloud server. The toilet may find uses in the screening, diagnosis and longitudinal monitoring of specific patient populations.
tl;dr — Data gathering for toilets using biometrics of your anus. Got it? Okay cool.
The article itself is paywalled, as far too many academic articles are, but one Twitter user shared screenshots of this screening, diagnosis, and longitudinal monitoring technology:
Other pages explain:
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We performed 410 fingerprinting [Ed note: butthole] trials from 10 participants … Among 11 participants, two video clips of the anus per participants were acquired from 7 participants, whereas one video clip of the anus per participant was acquired from 4 participants … As an input, individual frames of the anus from participant 1 were used for identification purposes.
A good toilet paper is hard to find these days, thanks to everyone's totally irrational coronavirus panic buying. But that's not the biggest problem for our butts.
No, worse is that alt-TPs are messing with our septic systems, which makes an even bigger mess for everyone.
My colleague Doug Mahoney has a great new blog post over at Wirecutter that explains why you shouldn't flush anything but toilet paper down your porcelain throne, and also recommends some handy alternatives (and disposal methods) in case you do have a problem finding those cherished rolls of soft white butt scoopers.
Toilet paper is very fragile and is designed to self-destruct in water with very little agitation. Tissues, on the other hand, are made to stand firm against a 100 mph sneeze discharging from your nose. Although the two products might have the same general look and feel, this video shows the difference in their durability. It takes less than 30 seconds of agitation for the toilet paper to be almost completely broken down. The tissue, however, remains fully intact. In plumbing, the bits of toilet paper can speed down the waste lines, but tissues remain big enough to catch on something, contributing to a clog.
Out of Toilet Paper? You Have Other Options. Just Don’t Flush Them! [Doug Mahoney / Wirecutter]
Image: Public Domain via PxHere Read the rest
San Francisco's housing crisis is also (of course) a homelessness crisis, and homelessness crises beget public defecation crises -- and San Francisco has a serious public defecation crisis.
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How's this for an amusing case of photographic mis-identification? Call it "Dueling Disgustingness". Last week, New Scientist posted this lovely image of a blue-spotted sea urchin, taken by nature photographer David Fleetham.
New Scientist identified the photo as depicting said sea urchin in the process of expelling its own guts out of its mouth. Which, gross, but okay. That's reasonable. A surprising number of underwater animals eat in this manner, using the acids in their guts to dissolve prey before they actually slurp it up as a slurry.
But, at the Echinoblog, Smithsonian invertebrate zoology researcher Christopher Mah makes a compelling case against New Scientist's interpretation. That's not actually the sea urchin's mouth, says Mah. In fact, it's the opposite. That's a (rare) photo of a sea urchin taking a dump.
Mah has a lot of good photos that make his case quite well. You should check them out. Then, join me in contemplating this thought: If Mah is right, doesn't sea urchin poop look a lot like Dippin' Dots?
The New Scientist blog post—featuring lots of cool info about sea urchins
Christopher Mah's analysis of the photo, explaining why he thinks it shows a pooping sea urchin, rather than one that is eating something.
David Fleetham's website—for more (less disgusting) photos of nature
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