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ddeck

3,327 karma · joined April 29, 2013

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ddeck··on Testing 12 different Zigbee temperature/humidity sensors
I have to agree. Aqara make some excellent hardware, but their Zigbee firmware is typically awful. Their battery-powered switches also drop off the network at random.

I have several E1 wired switches and had to resort to replacing the firmware on them[0]. They don't drop off the network as their sleepy end devices tend to, but they also can't be bound to other devices.

[0] https://www.ducktoast.com/blog/electronics-projects/aqara-e1...

ddeck··on Ice water drowning survival of young patient (2025)
The timeline lists "Sled tracks seen to broken bond ice, EMS called" at 16:44. He was pulled from the water at 18:57. The article text further clarifies:

Parents discovered sled tracks from home onto broken pond ice through which he fell.

He left the house at 16:00, which is why they give the range of 147 to 177 minutes.

ddeck··on Tesco moving 40k server workloads off VMware amid Broadcom's abusive conduct
Broadcom is publicly listed with a public float of about 98% (i.e. 98% of it's shares are listed publicly).

You're right that most shares are held by institutions (~80%), but that typically reflects the fact that most share ownership by individuals/companies goes through intermediaries (401k, fund investments, ETF etc.). Most of this institutional ownership is just asset managers, insurance, banks etc. taking their cut before passing returns/loses through to the end risk holder. The average institutional ownership of companies in the S&P500 for example is also ~80%.

None of this takes away from the point that Broadcom is absolutely run like a PE firm as the original commenter noted.

Not surprising given the CEO was appointed by KKR/Silverlake 20 years ago.

https://finance.yahoo.com/quote/AVGO/holders/?p=AVGO

ddeck··on Scientists say they've reversed brain aging in mice with a nasal spray
Intranasal Human NSC-Derived EVs Therapy Can Restrain Inflammatory Microglial Transcriptome, and NLRP3 and cGAS-STING Signalling, in Aged Hippocampus

https://isevjournals.onlinelibrary.wiley.com/doi/10.1002/jev...

ddeck··on Sued by Nintendo
>Nintendo is a small privately-held company

Nintendo is a TSE-listed public company with a market cap of about USD 110 billion.

ddeck··on Bringing fully autonomous rides to Nashville, in partnership with Lyft
Just to add another data point, the co-CEO indicated on a podcast 18-months ago that the sensor package cost was <=$100k for the then current generation:

"But saying, you know, picking an upper bound, $100,000 worth of equipment on it, you amortize it over, you know, the lifetime, call it, say, 400,000 (miles), 25 cents per mile. Right. And, you know, it gives you some margin compared to the cost of paying a human driver."

He also mentioned that the next generation would see a "drastic reduction in the cost".

https://www.shack15.com/podcast - ep41

ddeck··on Bringing fully autonomous rides to Nashville, in partnership with Lyft
And GO in Tokyo.

https://en.wikipedia.org/wiki/Go_(Japan)

ddeck··on Alibaba's new AI chip: Key specifications comparable to H20
You're right, but it's not quite so black and white. They are certainly continuing to build out coal capacity, but they are building solar/hydro/nuclear/wind generation at a greater rate, such that the proportion of generation from coal has been falling, from over 70% ten years ago, to about 55% currently.
ddeck··on Fuck up my site – Turn any website into beautiful chaos
Firefox via "Google Safe Browsing" also:

>Firefox blocked this page because it may trick you into doing something dangerous like installing software or revealing personal information like passwords or credit cards.

>Advisory provided by Google Safe Browsing.

ddeck··on Electric cars produce less brake dust pollution than combustion-engine cars
I think you meant capacitors. Resistors would just dissipate the energy as heat.

edit: Thanks for the correction. They do indeed use resistors and just dump the energy as heat. Unfortunate.

Hopefully this will change as supercaps continue to improve. Maxwell tech's modules are already used in light rail, and looks like some work towards smaller locomotives in Switzerland here:

https://www.osti.gov/etdeweb/servlets/purl/20823697

ddeck··on Electric cars produce far less brake dust pollution than combustion-engine cars
Not sure about the US, but the Japanese didn't stop focusing on hybrid development. More than half of all sales in Japan are hybrids, whereas electric is only a few percent [1].

Honda even recently announced that they're scaling back on electric to focus on hybrids:

https://www.reuters.com/business/autos-transportation/japans...

[1] https://www.bloomberg.com/news/articles/2023-12-19/hybrid-ca...

ddeck··on The $25k car is going extinct?
Chinese EVs are certainly strongly tariffed. The below Reuters article highlights how BYD are apparently shifting to plug-in hybrid sales to avoid the 27% tariff the EU imposes on its pure battery electric vehicles (plug-in hybrids attract a reduced 10% tariff).

https://www.reuters.com/business/autos-transportation/chines...

ddeck··on PicoEMP – A low-cost Electromagnetic Fault Injection (EMFI) tool
Just a reminder to ensure that you have brownout detection enabled on the CPU/MCU (assuming it's available) and are checking for it in your firmware. Supply drops can be very brief.
ddeck··on New US visa rules will force foreign students to unlock social media profiles
>I’m trying to find the directive to force student social media profiles to be public but can’t find anything yet.

It's on all the US embassy sites, although it says "are requested":

Effective immediately, all individuals applying for an F, M, or J nonimmigrant visa are requested to adjust the privacy settings on all of their social media accounts to ‘public’ to facilitate vetting necessary to establish their identity and admissibility to the United States under U.S. law.

https://uk.usembassy.gov/visas/

https://ca.usembassy.gov/visas/

https://in.usembassy.gov/visas/

etc.

ddeck··on My experiment living in a tent in Hong Kong's jungle
True in many places, but in Hong Kong, the cost of an A&E visit or hospital admission for the author (presumably on a student visa) at that time was about USD15/day.
ddeck··on Hong Kong's Famous Bamboo Scaffolding Hangs on (For Now)
It is, but they fill them with silicone when they remove it. The brackets I was referring to are about 70cm wide, so no chance of leaving them there.
ddeck··on Hong Kong's Famous Bamboo Scaffolding Hangs on (For Now)
I find the single apartment scaffolding to be the most amazing. These guys turn up at the door of your 30th floor apartment with a bunch of bamboo poles and nylon strips and a couple of hours lated the entire side of the apartment is scafolded, like a spider's nest hanging off the side of the building.

To begin, one guy hangs out the window, drills a few holes in the outer concrete wall, and bolts a piece of L shaped steel to support the initial bamboo "floor". After that he's outside balancing on the first piece while he drills more and extends along the wall. Someone on the feeds the poles through the window.

He usually has a rope attached to a waist harness, which is initially held by someone inside, and then clipped to the braces outside... most of the time.

The whole thing is amazing to watch.

It's necessary every time you need to service something outside, like replacing or repairing aircon.

ddeck··on Hacking a Smart Home Device (2024)
It's certainly possible. Tracing the MCUs IO lines to LEDs/buttons/relays etc on a PCB is usually pretty straightforward.

I have just finished doing this and writing replacement firmware for the Aqara E1 series of Zigbee switches, after getting fed up with them not supporting basic Zigbee binding functionality.

ddeck··on Ethically sourced "spare" human bodies could revolutionize medicine
And Never Let Me Go, which was also made into a movie I believe

https://en.wikipedia.org/wiki/Never_Let_Me_Go_(novel)

ddeck··on How I Use Home Assistant in 2025
Aqara is a bit of a mixed bag. A lot of their switches are not Zigbee certified and don't conform to the standard. Specifically, they won't bind directly with devices from other manufacturers.

This might not matter if you're pushing everything through a hub like HA, but if you want to connect directly with other devices and remotes then it likely won't work.

ddeck··on Hezbollah pager explosions kill several people in Lebanon
I mean, it's not like it would be out of character. Calling such accusations propaganda is a bit much.

China forcibly returned nearly 10,000 in overseas crackdown: report

https://www.france24.com/en/live-news/20220119-china-forcibl...

The Disappeared - China’s global kidnapping campaign has gone on for years. It may now be reaching inside U.S. borders.

https://foreignpolicy.com/2018/03/29/the-disappeared-china-r...

Thousands of Chinese overseas forced home involuntarily: report

https://asia.nikkei.com/Politics/Thousands-of-Chinese-overse...

40 Officers of China’s National Police Charged in Transnational Repression Schemes Targeting U.S. Residents

https://www.justice.gov/opa/pr/40-officers-china-s-national-...

China’s abductions of foreign nationals should carry costs and consequences

https://www.politico.eu/article/chinese-abductions-of-foreig...

ddeck··on Spacecraft Takes Close Up Video of the Sun, Revealing Otherworldly Hellscape
NASA released a very impressive 30-minute video of similar solar activity a few years based on images from their Solar Dynamics Observatory:

NASA | Thermonuclear Art – The Sun In Ultra-HD (4K)

https://www.youtube.com/watch?v=6tmbeLTHC_0

ddeck··on Mystery monk makes billions with 5-hour energy (2012)
>Forbes really hates Bhargava, for no apparent reason.

It's not Forbes, it's just a random contributor writing clickbaity articles for the $.

Forbes is trash and is closer to Medium in the way it is structured than to a typical news media site. It's generally just random contributors. You can see from the URL (forbes.com/sites/[contributer-name]). There are thousands of contributors with various incentives.

Forbes’ staff of journalists could produce great work, sure. But there were only so many of them, and they cost a lot of money. Why not open the doors to Forbes.com to a swarm of outside “contributors” — barely vetted, unedited, expected to produce at quantity, and only occasionally paid? (Some contributors received a monthly flat fee — a few hundred bucks — if they wrote a minimum number of pieces per month, with money above that possible for exceeding traffic targets. Others received nothing but the glory.)

As of 2019, almost 3,000 people were “contributors” — or as they told people at parties, “I’m a columnist for Forbes.”

https://www.niemanlab.org/2022/02/an-incomplete-history-of-f...

ddeck··on Abandoned villages of Hong Kong
Surprisingly only 24% of Hong Kong is developed "built-up" area. The rest is mostly forested. This also means that despite the density being broadly equivalent to Singapore on that list, it is actually much more densely populated in the areas where people live and work.

Hong Kong has a mountainous topography. Of the total land area of 1,111 km 2, 24.3% (270 km2) is built-up area, with the remaining 75 .7% (841 km 2) being not-for-development or non-built-up area consisting mainly of country parks, wetland, reservoirs, fish ponds, etc

https://www.legco.gov.hk/yr17-18/english/panels/dev/papers/d...

ddeck··on Rclone syncs your files to cloud storage
Thanks, but unfortunately this doesn't work - for my issues at least. I have this (and conntimeout) set to 15 seconds, but it makes no difference. I tried those based on another user reporting the same issue here:

https://forum.rclone.org/t/how-to-get-rclone-mount-to-issue-...

The timeout param is listed as "If a transfer has started but then becomes idle for this long it is considered broken and disconnected". This seems to be only for file transfers in progress.

I traced it once, and Rclone gets a "temporary DNS failure" error once the network is down, but just keeps retrying.

ddeck··on Rclone syncs your files to cloud storage
It is indeed great for this, but you need to make sure your network is stable.

I use it on my desktop and laptop to mount Google drives. The problem on the laptop is that the OS sees the drive as local, and Rclone doesn't timeout on network errors. So if you are not connected to wifi and an application tries to read/write to the drive, it will hang forever. This results in most of the UI locking up under XFCE for example, if you have a Thunar window open.

ddeck··on Hertz to sell 20k EVs in shift back to gas-powered cars
Correct.

Gogoro currently do more than 400,000 battery swaps / day, primarily in Taiwan, but are expanding into other Asian countries.

https://www.gogoro.com/

https://en.wikipedia.org/wiki/Gogoro

ddeck··on BYD's YangWang U8 launched, can float on water for 30 minutes and sail 3km/h
You certainly aren't the only one to notice:

Even tech giant Google's internet image search believes the Stone 01 is a Land Rover Defender, such is the closeness of the two SUVs.

China’s Land Rover Defender copycat revealed [1]

[1] https://www.drive.com.au/news/china-land-rover-defender-copy...

ddeck··on Air traffic controllers pushed to the brink
Right you are, which brings us back to the ~1.7% number (actually 1.6% if you include the STS-135 mission, which Wikipedia doesn't for unknown reasons).

So a 1 in ~60 chance of dying on any given flight...have to agree that that is far from safe.

ddeck··on Air traffic controllers pushed to the brink
It was significantly worse than that.

There were 2 failures over a total of 135 flights, with 14 fatalities. So that's about 103 fatalities per 1000 flights.

https://en.wikipedia.org/wiki/Space_Shuttle

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