Dyson, techno-centric design and social consumption
101–110 of 118 posts
Re: Dyson, techno-centric design and social consumption
#102I have a v12 and I couldn't be happier. Best cordless vacuum I've owned. Had an aeg before that was about half the price. But it sucked. Still some of the criticism holds, such as the terrible wall charger.
Re: Dyson, techno-centric design and social consumption
#103[flagged]
These kinds of curmudgeonly sneers/swipes at the HN community are so lame. They're easy to make and will attract upvotes and agreement from people who want the stereotype to be true. But they're futile to try and refute because people will always put more weight on the evidence that supports a belief like this than that which opposes it. The ultimate effect is wasted energy, and making HN threads depressing, which is interesting when the commenter is purportedly concerned about excessive negativity in this community.
Comments like this are clearly in breach of the guidelines, for good reason: https://news.ycombinator.com/newsguidelines.html
Re: Dyson, techno-centric design and social consumption
#104Earlier quoted context omitted.
This kind of comment is ridiculous in light of the last hundred years of transportation which worked on gasoline , a highly flammable liquid fuel that can even explode under some circumstances. Why do we trust people to handle gasoline safely, but Li-ion batteries are a bridge too far? I'm tired of being treated like an idiot consumer because someone, somewhere, fucked up their Li-ion battery.
We don’t let people fill up their cars inside their residences either. Lithium ion batteries are additionally dangerous because the fires burn hotter, are self oxidizing, and can’t be extinguished with conventional fire extinguishers.
Battery fires are not hotter. An EV battery fire and ICE car fire actually have fairly similar heat energy profile. ICE cars are a bit more intense. There’s a study from Sweden that set fire to similar ICE and EV cars and measures the energy. A gasoline tank will typically store a lot more raw energy than an EV battery.
They are self oxidising if the electrolyte burns away. That’s true. The anode and cathode is shorted and you get thermal runaways. That’s why it’s a bit of a challenge to fully put out a battery fire. Next gen solid electrolyte batteries fixes that to some degree.
Of course you can extinguish a battery fire with a fire extinguisher, or just water. The problem is that thermal runaway will make the battery really hot again, which will reignite anything flammable around the battery. So you need to keep it cool for a long while, generally by spraying or submerging it in water.
Re: Dyson, techno-centric design and social consumption
#105Earlier quoted context omitted.
This kind of comment is ridiculous in light of the last hundred years of transportation which worked on gasoline , a highly flammable liquid fuel that can even explode under some circumstances. Why do we trust people to handle gasoline safely, but Li-ion batteries are a bridge too far? I'm tired of being treated like an idiot consumer because someone, somewhere, fucked up their Li-ion battery.
We don’t let people fill up their cars inside their residences either. Lithium ion batteries are additionally dangerous because the fires burn hotter, are self oxidizing, and can’t be extinguished with conventional fire extinguishers.
Re: Dyson, techno-centric design and social consumption
#106Earlier quoted context omitted.
The particulate aerosolization worries me. In the future we're going to regret breathing bad air. It's the accelerant for so many health problems.
> In the future we're going to regret breathing air. It's the accelerant for so many health problems. A non-oxygen dependent energy system for the human cell is the only option moving forward. We need to utilize a clean energy source like sunlight and dump that oxygen dependency once and for all. Cyanobacteria was a crutch dependency that helped bootstrap that whole life thing pretty quickly for the demo. We have a p…
Re: Dyson, techno-centric design and social consumption
#107Earlier quoted context omitted.
Ikea has every grade of quality from cardboard to solid wood to metal furniture. I will never understand why there are always such comments saying Ikea furniture is bad quality, or in your case not even "real" furniture, come on, it's like you have never even been in an Ikea store.
We can agree to disagree. yes Ikea offers _some_ products that are made of solid wood. But i’d say maybe 75% of their selection is particle board mixed with _some_ wood elements. That was what i saw during my last trip in ikea in 2020, in NY. Their selection of office furniture is similarly sad. Office chairs that might last 10 years with gentle use MAX. A lot of the ikea stuff is what i’d consider “buy it for life i…
Re: Dyson, techno-centric design and social consumption
#108Earlier quoted context omitted.
Jesus, they have a battery handshake? We truly do own nothing.
Sadly, the lack of good sense and typical selfishness and shortsightedness of a human being means that when you don't, you get the spate of e-bike battery house/apartment/highrise fires that were hitting NYC. You kinda can't fuck around with li-ion. I don't like that my Bosch e-bike batteries have closed-source schematics, software, and chargers (i mean really, what the fuck am I going to steal Bosch), nor that the s…
Humans will lie and cheat for profit but at the same time humans also build locked batteries. It's just that nowadays we take away responsibility of people and their choices and we don't want to deal with the fact that when someone is buying a shitty poorly built copy, they are the ones at fault because of their greed.
You could very much have an open market (and should) it's just that people would rather believe there is nothing wrong when they buy something that is suspiciously cheaper than it should be.
Greedy corporations are at the origin of the problem precisely because they try to extract too much for their stuff, selling it at what is an unreasonable price.
You cannot at the same time blame people for their poor choices out of greed and at the same time re-enforce the same behavior in corporations, that's nuts.
Re: Dyson, techno-centric design and social consumption
#109Re: Dyson, techno-centric design and social consumption
#110Earlier quoted context omitted.
We don’t let people fill up their cars inside their residences either. Lithium ion batteries are additionally dangerous because the fires burn hotter, are self oxidizing, and can’t be extinguished with conventional fire extinguishers.
Good point that people generally don’t fill up their cars in their home. Though I know people have really hurt them selves trying to use gasoline to ignite a bonfire and such. Gasoline fumes are extremely dangerous Battery fires are not hotter. An EV battery fire and ICE car fire actually have fairly similar heat energy profile. ICE cars are a bit more intense. There’s a study from Sweden that set fire to similar ICE…
We actually had an issue with this at Robocup one year, where one of the teams charged their battery at 3C and then blew it up. We didn't have a Class D extinguisher within reach, so we blasted it with a CO2 extinguisher while someone ran to get a class D extinguisher. The battery kept burning after blasting it with the CO2 extinguisher, but at a much reduced pace, and the perpetrating team took a selfie with their burning battery.