In the same way it made the previous 3DO?

Small correction: oxygen is released by the cathode material, the electrolyte is the fuel. The fire triangle is completed by the heat released by the short circuit.

I'm afraid asking people at the check-in desk whether their no-name battery pack has LFP or NMC cells wouldn't be conclusive though.

Tesla was not awarded a patent for this technology. They filed an application which was published on 19/09/19, and the appended search report and opinion shows that the invention as claimed is not new.

So it appears that they have optimized some existing technology (which is a good thing), not invented anything new.

In case you're wondering, this article is about the very famous UVB-76 station.

https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2F...

True, but right now even if the UK were to complain about this resolution they would be ignored.

They are not out yet, but they have lost their voice already.

Nobody is making imitation Lexmark cartridges. These cartridges have already been bought from Lexmark, at which point they're the customers' property. If you bought a car, you can sell it to someone else, you can pay whoever you like to repair or modify it, you can paint it luminous green. Why should this be different?

Regarding your first point: the cartridges have been indeed bought. The customers at the end can refill them as they see fit. Instead, they sell them to Impression Products (it appears to be implied that they "recycle" spent cartridges they get from their customers), who refill them, and then buy them back.

So here the problem is not that the customer is not entitled to refilling the cartridges (which does not seem to be the point of the dispute), but the problem seems to be that Impression Products sells infringing cartridges (remember, not the content, but the plastic bit object of the patent) on which they make a profit in two ways: (i) they don't have to buy empty shells from a manufacturer, and (ii) they sell the product to a customer.

Regarding your car analogy: it's obvious you can repair your vehicle or paint it. This is akin more to a case of "customer not allowed to refill fuel tank". However, say that you want your car repainted, so the paint guy would strip the paint off your car, somehow liquefy it again, and then resell the paint as "compatible chevy color #8736". If GM had a patent on the specific pigment used, I can see how they could very well sue you, even if that paint had been used once before. It's all about selling a protected product, not about how many times it's been used.

This seems to me the core of the problem, and it's impossible to tell without knowing exactly what patents are being (allegedly) infringed upon.

If it's just about the shape of the cartridge (which is a perfectly fine thing to patent, assuming that a proper technical effect has been found in the examination procedure), and if this company is effectively selling the cartridges without paying a royalty for the use of this shape of cartridge, then I can see how Lexmark has a case.

If Lexmark is suing on grounds of "Use of our cartridge", and assuming they haven't claimed such use, then it's a very different story.

Well it's not like 747s have disappeared from commercial aviation. A number of airlines use the newest 747-8i (such as Lufthansa) and they will use them for years.

I had the luck of flying on a KLM 747 ICN-AMS; and a 747-400 (FRA-YVR) and 747-8i (JNB-FRA) of Lufthansa.

The KLM flight was in business on the upper deck, and it was a fluke because at the time only economy travel was company policy. However my VP took his sweet time to approve my travel, and by the time he did it only business was available. Somehow slipped through the cracks, and I got to fly in business. Poor experience all in all, with slanted seats, mediocre food, and a snoring neighbour. But the first time on the upper deck you can't forget!

Second time was on a 744, and I was booked in business. At the time Lufthansa was flying their 744s with an amazing upper deck configuration with 8 first class seats which also had a bed:

http://onemileatatime.img.boar...

I went to the gate before my flight to get my passport sorted, and the friendly gate agent gave me a shiny first class boarding pass. I could not believe my luck, never got an upgrade before, and now this! Made my way to the first class lounge in Frankfurt, ordered eggs benedict and a glass of champagne, and waited to board. I slept about 8 hours straight on my own flying bed!

Finally I flew the 748 recently on the upper deck in business class, and it was a mostly uneventful flight, but the experience of going up the stairs is always amazing.

Fun fact, if you get to fly first class on the 748 of lufthansa, you actually sit more in front of the pilots, since the nose of the plane is way ahead of the upper deck!

The energy density per se depends mostly on the electrode materials used. This battery uses conventional electrode materials, so in principle it can achieve the usual energy density of Li-ion cells.

The cells use Li4TI5O12 at the negative electrode, which means that they most likely operate at a lower nominal voltage than traditional Li-ion cells (somewhere around 3V as opposed to >4V), however since the electrodes can be made much more dense (because the liquid electrolyte does not need to penetrate in the electrode and therefore the empty porous space in the electrode is not necessary), overall the energy density of the electrode (capacity times voltage) remains the same.

The main advantage of solid state cells comes from the fact that the electrolyte layer, in principle, can be made much thinner than the usual ~20 microns required by the traditional polymeric separators. However, manufacturing such thin layers of purely ceramic materials is not easy, and I don't think (cannot access the paper right now) that the cell shown in the paper has any advancement in that respect. I think the best example of thin, ceramic, Li conducting layers are those made by Ohara in Japan.

So overall an interesting technological step, but no breakthrough.

I have had a Blackberry for the last couple of years. Yes, Android applications work when they work. But if you want to use an app that depends on Google Services, you have to jump through a million hoops. Sometimes apps just crash. And since it's an emulated environment, the average blackberry hardware is just too weak to maintain acceptable performance.

So yes, it's "just Java", but there's more than that. As much as I hate Android, I had to switch, it just wasn't worth the effort.

Here in Germany credit cards are still seen as an exotic and luxurious item, and most transactions are conducted by giving direct access to your bank account. Sign up for a phone plan? Give them your bank account. Sign up for internet? Bank account. Buy on Amazon? You guessed it, bank account.

An extremely popular payment method is Sofortüberweisung, where you authorize a bank transfer at checkout. I am not sure what would happen if someone would intercept this payment and add a couple of zeroes to the amount, as technically you have authorized the transaction with your two-way authentication.

I have noticed that too in my last 3 flights to the US. Interestingly enough, this additional screening was only for economy passengers. As I was travelling in business, I could just walk through the gate and enjoy the show.

So yeah, there's my anectodal evidence.

I'm not an engineer, but I always wondered why trains tend to be designed like a wall. Only high-speed trains are actually wedge shaped to be aerodynamic.

I would imagine that a subway train, acting like a "piston" would work better if it were more aerodynamic and not have to overcome a lot of pressure within the tunnel.

Can anyone explain the reasons behind this design?

The internet really is home to the worse perversions...

As long as voice isn't enabled I don't have a problem with that. I recently tried wifi on a long haul flight and was quite impressed with the speed of the service. I can see how people might want to have data connection up up in the air (albeit one has to see the extortionate roaming prices airlines will come up with!).

But voice? No thank you. It would quickly become a safety issue because passengers would assault each other.