Comment Re: But why a smart garage door opener? (Score 1) 116
And when you lose your phone or it's stolen? Or if it somehow gets bricked after an upate? Or gets compromised?
There's this thing called single point of failuare.
Agreed. If someone wants a movie or music or software, they can request it from the owners and can only use the item they were specifically given permission to use. Otherwise, they have to pay for it.
https://www.pilotmix.com/cozy-...
For context for those not familiar with experimental/homebuilt aircraft. You can pretty much use anything off the shelf or custom. 3D printed parts (either self-sourced or purchased from dedicated vendors) are probably not uncommon at this point in time, depending on what you are using them for. Certified aircraft do not have this degree of latitude in terms of part sourcing and DIY work.
Now to the question about whether the owner made/installed the part, or it was sourced through the parts chain:
https://www.bbc.com/news/artic...
"The Cozy Mk IV light aircraft was destroyed after its plastic air induction elbow, bought at an air show in North America, collapsed."
That sentence implies that the air induction elbow was purchased at an air show.
Reviewing the accident report ( https://www.gov.uk/aaib-report... ), we get the following:
"The aircraft owner who installed the modified fuel system stated that the 3D-printed induction elbow was purchased in the USA at an airshow, and he understood from the vendor that it was printed from CF-ABS (carbon fibre â" acrylonitrile butadiene styrene) filament material, with a glass transition temperature3 of 105ÂC.
An alternative construction method for the air induction elbow, shown in the Cozy Mk IV plans, is a lamination of four layers of bi-directional glassfibre cloth with epoxy resin. The epoxy resin specified for the laminate has a glass transition temperature of 84ÂC, after the finished part has been post-cured. The aircraft owner stated that as the glass transition temperature listed for the CF-ABS material was higher than the epoxy resin, he was satisfied the component was fit for use in this application when it was installed.
A review of the design of the laminated induction elbow in the Cozy Mk IV plans showed that it featured a section of thin-walled aluminium tube at the inlet end of the elbow, where the air filter is attached. The aluminium tube provides a degree of temperature-insensitive structural support for the inlet end of the elbow. The 3D-printed induction elbow on G-BYLZ did not include a similar section of aluminium tube at the inlet end."
So apparently purchased through a 3rd party vendor, the owner installed according to an existing design variation (and got approval from regulatory oversight to do so), but apparently the 3d printed part installed did not meet the requirements for temperature resistance as compared to the glass-fiber/epoxy part specified in the plans, possibly due to the lack of that aluminum tube.
... except instead of shoes becoming the only profitable product to manufacture, it's chatbots. Nobody knows why, but when it's all over, the only survivors will be those who evolved into computer-illiterate deaf-mutes.
The Metro wouldn't be safe by modern standards. Of course an old Honda Civic hatchback wouldn't be, either.
Agreed; but it is possible to make a Metro-sized car that is safe by modern standards and still gets 40+mpg. The Smart ForTwo and the Scion IQ are two examples.
The 3 cylinder Geo Metro in the 1990s achieved over 40 miles per gallon. 30 years later you're telling me we lost that ability?
Yes, but only because most Americans are unwilling to drive a Metro-sized car anymore. They've been conditioned to think small/lightweight cars are unsafe or unmanly or etc.
The fact that the government is mandating fuel efficiency means that most people don't care. If they cared, nobody would buy the inefficient cars so the manufacturers wouldn't make them, no need for government intervention.
The invisible hand of the free market solves a lot of things, but it's never quite figured out how to avoid the tragedy of the commons. Everybody wants to live on a livable planet, but nobody wants to pay for the technology required to keep that way.
I traveled to poor countries where traffic is 90% scooters. This is all they can afford. I hope we can do better.
Being inexpensive to purchase and operate is one advantage scooters have over automobiles; the other is that they are small enough to maneuver quickly through heavy traffic and easier to find a parking spot for in congested areas.
That's actually a good question. Inks have changed somewhat over the past 5,000 years, and there's no particular reason to think that tattoo inks have been equally mobile across this timeframe.
But now we come to a deeper point. Basically, tattoos (as I've always understand it) are surgically-engineered scars, with the scar tissue supposedly locking the ink in place. It's quite probable that my understanding is wrong - this isn't exactly an area I've really looked into in any depth, so the probability of me being right is rather slim. Nonetheless, if I had been correct, then you might well expect the stuff to stay there. Skin is highly permeable, but scar tissue less so. As long as the molecules exceed the size that can migrate, then you'd think it would be fine.
That it isn't fine shows that one or more of these ideas must be wrong.
I don't think slashdot has had any actual developers working on its since the early 2000s. It's a mature legacy codebase, destined to run as-is until it can't anymore, then go away.
Because we don't want them to instantly kill the first kid who jumps the fence, or the next careless service technician. Automated industrial robots (which is what these cars are, really) have these things for a reason.
I really hope that Waymo's cars aren't relying on their Nader-beepers to avoid killing people. They should be (and AFAIK are) relying instead on their video cameras, LIDARs, and other sensors to stop the car before it hits the wayward kid/technician.
A CONS is an object which cares. -- Bernie Greenberg.