While its allowed by the standard, its not something that is often used. Certainly the AppleTV that I use does not even offer an option to share its network connection over Ethernet. And I’m not aware of any other box that does.
Pretty sure you need a special cable that carries ethernet, as well as a device at the other end that supplies ethernet to HDMI, so you have to really want to let your "smart" tv to have access to the internet.
We had something similar about 10 years ago where I worked. Customer instances were backed via loopback devices to local disks. We didn’t think of this - face palm - on the loop back devices. What we ended up doing was writing a small daemon to posix fadvise the kernel to skip the page cache… your solution is way simpler and more elegant… hats off to you
This is something life changing for some of us. I grew up in an area where water has a lot of fluoride and we didn’t get to know until I was 16.. side effect is I have very brittle teeth.. I’ve shattered a couple due to bad rice (had a small stone in it), lentils, sliver of bone … Now, the kicker is Colgate et al have been marketing fluoride toothpaste to the same region to people facing fluorosis knowingly - profits above all else. so if this treatment comes through, I’ll be lining up!
To be clear: drinking water sources often contain flouride and swallowing water is generally not optional. The source can be natural or artificial, but the outcome will be the same if you get an unusually excessive amount during developmental years. As with all nutrients, too much will inevitably become bad for you (thankfully, in the case of flouride, the therapeutic index is quite generous)
With all of this being said, once you're an adult there's no longer any particularly viable pathways from the bloodstream to your outer teeth, so flouride in the body becomes mostly disconnected from flouride in the teeth (and vice versa). Flouride's effects on the body are less well understood, albeit only because we struggle to measure such apparently small effects on a general population.
My mom was obsessed with flouride in water so I actually asked my dentist about it. According to an actual health professional it is quite good for the teeth and excessive amounts only affect the appearance not structure.
> The severity of the condition is dependent on the dose, duration, and age of the individual during the exposure.
> Severe : 5 : All enamel surfaces are affected and hypoplasia is so marked that the general form of the tooth may be affected. The major diagnostic sign of this classification is discrete or confluent pitting. Brown stains are widespread and teeth often present a corroded-like appearance.
Fluoride catalyzes remineralization of dissolved calcium and phosphate atoms back to hydroxyapatite; this also happens without fluoride, but less efficiently. In addition fluorine ions can substitute the hydroxide ions in hydroxyapatite, forming fluorapatite which is more resistant against acid.
Millions of people in England receive fluoridated water. This means fluoride has been added to bring it up to around 1mg of fluoride per litre of water, which is a level found to reduce tooth decay levels.
Now I know there is a running joke around the English having bad teeth. But I imagine if millions of people were having issues we’d know about it.
I always thought we started fluoridation of water so the Soviets couldn't figure out how much uranium (and later plutonium) we were producing. UF6 is a bi-product of uranium enrichment and it's fairly straight-forward to estimate how much we're producing by taking water samples at the mouths of various rivers. But if everyone is brushing their teeth with fluoride, then it's a lot harder to accurately measure how much is due to enrichment.
This is very clearly a conspiracy theory, but water fluoridation is one of those topics that seems to attract them.
Fluoride is good for your teeth. Not sure what you're talking about, but it's scientifically inaccurate. Also, fluorosis is a cosmetic issue, it doesn't weaken your teeth. And it happens when you're growing your permanent teeth when your parents forget to teach you to not swallow your toothpaste. It wouldn't affect you now.
If your water is over-fluorinated, you have far bigger problems that stem from your local government.
You’re wrong on both counts. The geology of many areas cause excess fluoride in well water without any government intervention, which can then become worse when using fluorinated toothpaste. It’s rarely a significant issue in the US, but gets far in some countries.
“These sources include drinking water with fluoride, fluoride toothpaste—especially if swallowed by young children” Ie: swallowing makes it worse but the point of fluoride in toothpaste is to be absorbed, so some will get absolutely even in those who already have issues.
Yeah rat poison can't harm humans regardless of form, concentration, age or literally any possible factor. Trust us with lives of your kids, we say so.
(just to be clear I am a rational science freak, but my kids have higher priority and we know scientists and corporations have messed up more than once, not going into 'just trust us' with literal poison just because it has good side effects on teeth)
Only at low levels: “Moderate and severe forms of dental fluorosis, which are far less common, cause more extensive enamel changes. In the rare, severe form, pits may form in the teeth.”
> And it happens when you're growing your permanent teeth when your parents forget to teach you
He said it happened as he grew up. Wikipedia says almost half of Americans have at least mild fluorisis, there's no need to blame the parents when an environmental/governmental cause is so readily established...
> Also, fluorosis is a cosmetic issue
That's what I thought too but Wikipedia also disagrees on this count:
The pits, bands, and loss of areas of enamel seen in severe fluorosis are the result of damage to the severely hypomineralized, brittle and fragile enamel which occurs after they erupt into the mouth.
Fluorosis is not a cosmetic issue - it can be severe enough that it impacts the strength of the skeleton.
Even if that was not the case, you'd need to prove that it's better than hydroxyapatite when applied topically, which (assuming effective) delivery will obviously not be the case.
About 9 years ago, I consulted for a company that had a bad internal hack - disgruntled cofounder. Basically, a dead man’s switch was left that copied out the first 20mb of every disk to some bucket and then zeroed out. To recover the data we had to use test disk to rebuilt the partition table… but before doing that we didn’t want to touch the corrupted disks so we ended up copying out about 40tb using rescue flash disks, nectat and drive (some of the servers had a physical raid with all slots occupied so you couldn’t use some free had slots). Something along the lines of dd if=/dev/sdc bs=xxx | gzip | nc -l -p 8888 and the reverse on the other side. It actually worked surprisingly well. One thing of note,try combinations of dd bs to match with sector size - proper sizing had a large impact on dd throughput
Take a look at "evcc". Careful: It's MIT licensed open source, but a a set of interfaces (to inverters, wall boxes, car APIs or smart meters) need to be unlocked with a sponsorship token; or patching the license check.
-> https://evcc.io/en/
It's a stand alone server with a simple Web UI and takes care of charging your car with solar (or grid, if there is not enough solar). IIRC it offers three modes: 1. charge solar only, 2. charge with at least 6A, boost if there is more solar, 3. charge independent of solar.
You can also configure charging targets, e.g. stop at 80% SOC.
Back in the day ~23 years ago. A telco that had just launched started providing voice mail service. Normal outgoing call rates were about .5 usd per minute. The newly launched voice mail service was free. So university students found a new trick to call their friends, flash your friend (single ring signal to say that they don’t pick up their phone), hang up and call again, let it ring till it goes to voicemail, leave a long message, hang up and wait for the reply. Obviously it’s not full duplex and latency was high but what the e heck it’s free. The telco killed it within 2 days… and then we started having fun with all those smsc Center numbers from all over the world…
