If you use approximately the same amount of material as in an aluminum can, you’re already at 3x the weight of an aluminum can. Stainless is also far less malleable and much more brittle than aluminum, so the minimum wall thickness is much higher for steel. Aluminum can walls are 0.11m thick, whereas the minimum wall thickness for stainless steel alloys is around 0.50mm thick. Meaning you’d need around 4.5 times as much material, making the stainless steel can weigh at least 10 times as much as the average 15 gram aluminum can. A 12-pack of soda would weigh 4.5 pounds more. Now imagine how much transporting that extra weight costs.

Stainless steel is great for reusable stuff, but it’d be impractical at the same scale as aluminum cans.

Yes, it is actually. You melt the aluminum and skim off any remaining plastic and contaminants from the top of the molten aluminum. It’s a standard, millenniums old process for any metal working.

Problem is the stainless steel you’d need to use in order to get the corrosion resistance and non-reactivity with the contents is prohibitively expensive. Cheap stainless steel alloys offer pretty poor corrosion resistance - see the CyberTruck rusting after being rained on a few times.

Easy solution: only buy drinks in aluminum cans or glass bottles. World is already drowning in microplastic pollution.

For universities, sure. But not for US public elementary and high schools. They’re just poor.

IP67 in reality won’t last 30 minutes submerged in most cases. I’ve had flagship level IP67 devices get damaged by water ingress by being splashed or dunked a couple inches into a pool for less than a second. My Pixel 8 Pro goes into the shower, bath, pool, hot tub, and rain with me and it’s never skipped a beat.

Thanks for the anecdotal evidence, but in general those buds ended up in the trash in months, if not weeks. Out of all the people I know, pretty sure my wife is the only one that likes the wired buds that came with phones, but she went through a pair every few months. She switched to Pixel Buds a while back and only uses the wired ones when she runs, but still has to buy new ones twice a year.

The limitation is not tech, it’s the cost to include those features in an IP68+ device. The XR21 is a $650USD phone, that’s near flagship prices, and very far from a budget phone.

Is it possible to create a device that has a jack, SD slot, and removable battery that’s also IP68+ certified? Absolutely, but doing that is quite a bit more expensive than the same features on an IP67 or lower device.

It’s not that it’s impossible, but the device will be both more expensive, and considerably thicker. Most people do not care about a headphone jack anymore, and even less so SD card slots and removable batteries. They want thinner, cheaper, waterproof phones. These features aren’t in high demand, and aren’t profitable for companies to produce.

Yet lasted 1/10th as long.

Oh, sorry. Did you enjoy fishing them out of your pocket only to have everything else you happened to have in your pocket fall to the ground. Then once you picked up all your stuff, you still had to spend a couple minutes untangling and removing all the random knots that had appeared in your headphone cords since you put them in.

It was IP67 not IP68, which is what I stated. While it’s possible to have a headphone jack and IP68 resistance, it’s not cheap and you likely won’t find it on anything but niche flagship phones like the Asus Zenphone.

IP67 and IP68 are considerably different. It’s basically the difference between water-resistant and water proof. IP67 could handle splashes of water and, at least on paper, brief submersion. In reality, most. IP67 phones did not handle any level of immersion well.

IP68 on the other hand allows phones to be submerged deeper in water and for much longer. You can have IP67 with those features, but IP68 is a different beast.

Do you really consider the $5 wired earbuds that came with the phone, the ones most people used, were repairable? Nah, they were way more disposable than even cheap wireless buds are these days.

I used to feel this way until I realized that a large percentage of phone users rarely used earbuds or headphones, including myself. Wired earbuds were a pain in the ass, nobody wanted to carry a coiled up cable in their pocket all day. But a little clamshell with a couple small buds in it fits pretty well into a jeans pocket. Once wireless earbuds hit the market, everyone started using them for a reason.

The only real argument for an analog headphone jack at this point is audio fidelity, and if you care about that you’re 1, not using your phone with a cheap DAC to do it and 2, your headphones probably use a 1/4" jack not a 3.5mm one. Wireless protocols are also catching up to analog as far as audio quality as well, and most people expect IP68 from a good phone these days, and you’re not getting that with a 3.5mm audio jack or removable battery.

The consumers who care about an audio jack on phones these days are a very vocal minority.

Nice, I’ll have to try this soon. Last time I checked the process was way more complicated.

Heritage breeds are the way to go if you can find them. Taste better and typically more humanely raised.

I bet you’re fun at parties.

Where is this at? I’ve never seen 440ml or 440ml cans in North America. Canned drinks/beers usually come in 355ml (12 US ounces), 473ml (16oz), 500ml (16.9 oz), or 19.2 US ounces (20 British ounces aka British pint). Other less common sizes are 8oz (236ml / Red Bull) and big beer formats like 24oz and 32oz (just shy of a litre).

404ml is around 13.66 US ounces or 14.2 imperial ounces. 440ml is around 14.7 US ounces or 15.5 imperial ounces.

Usually when you get a measurement that’s not a nice round number like 500 or 750 it means it was probably converted from some other measurement standard. But both measurements seem completely arbitrary for what I assume is an English speaking country.

I looked through some antique measurements but didn’t find anything useful. It seems to be more than half a chungah, but far less than a butt.

Right? You don’t have to join or even engage with Threads if you don’t want to. Super easy to block an instance. But this brings a massive userbase and serious support to Mastodon. I’m a huge FOSS supporter and this is how the Fediverse not only survives, but thrives and grows - buy in from big players. Otherwise, when X/Twitter inevitably dies, another proprietary app takes its place. We just have to hold them accountable and educate users that there are Fedi apps outside Threads.

More broadly, we developed more slow twitch muscles that granted us greater fine motor skills, and subsequently the ability to create and use tools. Other apes retained their fast twitch muscles, so their ability to use tools is limited, but pound-for-pound they’re FAR stronger than humans.