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reportingsjr

1,913 karma · joined December 18, 2010

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reportingsjr··on Crush Your Interviews with the Power of Storytelling
I do hardware design in the midwest US and my experience tracks yours. I've done maybe 10 technical interviews over the last 10 years. They typically want to talk about problems I've had and how I've handled them, some basic level of technical understanding (i.e. explain this circuit, or show how you would change X parameter of this design), and in the better interviews they ask questions to see how I communicate with people.
reportingsjr··on After 151 years, Popular Science will no longer offer a magazine
Quanta magazine does a really, really good job with long form science journalism. Highly recommend checking them out.
reportingsjr··on Tesla sues Swedish state agency over number plate blockage
Teslarati is a notoriously horrible blog. It's been banned from a lot of Tesla subreddits if that tells you anything.
reportingsjr··on Code Search at Google: Han-Wen and Zoekt
Mercurial (aka hg) was also gaining popularity at the same time as git. The interface was a lot nicer and more sane than git, but it had some serious performance limitations that hampered it.

Both were definitely way better than SVN/CVS/etc.

reportingsjr··on Why aren't motherboards mostly USB-C by now? (2021)
Did the USB C port ever work that way? Extra electronics are needed to support being able to flip the high speed connects like that. Maybe the laptop never had that?
reportingsjr··on Starship Integrated Flight Test 2 at 7 Am Central Time
A rough estimate from Jonathan McDowell (well known for tracking lots of space objects and launches) is that the debris landed north east of the Turks and Caicos islands.

https://nitter.net/planet4589/status/1725873032244195495

Edit: a newer update shows direct evidence of the debris field area https://nitter.net/planet4589/status/1725917544114974995#m

reportingsjr··on Air Accident Investigation Branch: film lights caused window damage on A321neo
Aircraft windows have multiple, separate panes. Presumably only the outer pane dislodged and the inner ones remained in place.
reportingsjr··on Vehicles with higher, more vertical front ends pose greater risk to pedestrians
I find it hard to take any mention of "preference" at face value in these sort of conversation.

People arguing for suburbs never, ever, ever acknowledge that the only reason that costs are cheaper outside of cities is because huge amounts of money are taken from those cities to fund the suburbs.

Much of this money shifting is done at the federal level (subsidized HUD/USDA loans, huge grants, regulations that massively favor cars) so there is no escaping it by moving around in the US. Some states are better about the balance, but there is no getting away from it.

reportingsjr··on US Smartphone Shipments Decline 19% in Q3 2023 as More Americans Delay Upgrade
That chargie device is interesting!

The latest versions of Android and iOS have finally built in battery management that does basically the same thing (they will not rapid charge over night, and will sometimes limit charge below 100%).

I'm curious to see long term how much these changes will help.

reportingsjr··on EPA plans to limit or eliminate salmon-killing tire chemical found in Alaska
The intent isn't to destroy marine life. The intent is to prevent things from sticking to and growing on the bottom of ships.
reportingsjr··on If you plant milkweed, they will come
There are quite a few milkweed species, such as Sullivant's milkweed, that aren't nearly as aggressive for what it's worth. Definitely an option to plant these other sorts.
reportingsjr··on If you plant milkweed, they will come
There are a number of milkweed species that vary in the conditions they like. Some like moist and rich soil, some wet and swampy areas, some like sandy and dry soil.

Look for a local extension service or guide on what species are native near you and what types might be good for your soil conditions.

reportingsjr··on Samsung announces 'Shinebolt' HBM3E memory
Who knows? IBM Research just released info on their updated compute in memory chip [0]. Intriguing, but it doesn't provide a ton of insight in to whether or not it will be commercially viable any time soon.

0: https://research.ibm.com/blog/northpole-ibm-ai-chip

reportingsjr··on Toyota Research claims breakthrough in teaching robots new behaviors
This sounds similar to some of the work that google has done, such as PaLM-E: https://blog.research.google/2023/03/palm-e-embodied-multimo...

Very exciting times in robotics!

reportingsjr··on Where did the Carter White House's solar panels go? (2010)
Even for PV, most payback periods are under 10 years at this point. In sunnier areas payback periods can be just a few years.
reportingsjr··on SpaceX no longer taking losses to produce Starlink satellite antennas
The satellites may not currently be the bottleneck for certain areas, but they definitely don't support anything resembling a densely or even sparsely populated area.

Typical calculations (using only publicly available info as a caveat) generally point towards the current starlink constellation supporting a really low density of antennas.

If you want the details, the person who created starlink.sx has a great blog with some incredible calculations[0]. The section that is most relevant is under the heading "Simulation with TDM and beam spread combined".

Basically, the result is that starlink could support around 15 antennas/user terminals per "cell" at 75mbps, where a cell is about 252 square km. This is roughly 1 terminal per 17 square km.

If you allow for 10x oversubscription, fairly common for ISPs, that gets you to 1 terminal per 1.7 square km. Not really that impressive when you compare it to the density and services where 99.9% of people live, but it clearly helps out the small number of people way out there.

0: https://mikepuchol.com/modeling-starlink-capacity-843b2387f5...

reportingsjr··on iPhone 15 and iPhone 15 Plus
In my experience they aren't too bad. I typically use an exacto knife and just scrape around the bottom of the port for a while until I stop pulling lint out.
reportingsjr··on iPhone 15 and iPhone 15 Plus
> plus, if your beef is grass fed for its whole life like ours, it's carbon neutral, as all the carbon that goes into the animal came from the atmosphere

This totally ignores the land use issue. Cattle absolutely decimate natural areas. e.g. significant areas of the midwest/great plain that were prairie with deep roots to store carbon are now pasture. Pasture grass has comparatively shallow roots and limited ability to store carbon.

reportingsjr··on iPhone 15 and iPhone 15 Plus
Where have you seen Apple mention this ability? In the presentation they specifically called out being able to charge airpods via iphone _with_ a cable, not wireless charging between airpods and iphone.

I am surprised apple hasn't included this ability yet. My pixel 6 pro also has this ability.

reportingsjr··on Is air conditioning making cities hotter?
Exactly correct!

Also, you could definitely do well to reduce your roof albedo by switching to white/reflective roofs. This point has been made endlessly over the last 30-40 years. No one actually does it. People are actually installing solar panels.

reportingsjr··on Lithium discovery in US volcano could be biggest deposit ever found
This is not true, as subsidizing cars makes suburban and exurban locations cheaper. Significant land use change in this way absolutely contributes to high atmospheric CO2 as well as widespread environmental destruction.
reportingsjr··on Is air conditioning making cities hotter?
Below 10%. The most efficient plants are food crops we've genetically modified. I believe corn absorbs around 10%.

However, plants also reflect a lot of energy, unlike black/asphalt roofs that most people in the US install.

reportingsjr··on Lithium discovery in US volcano could be biggest deposit ever found
Maybe massively subsidizing cars that need insane amounts of resource extraction isn't the best solution here, and there are other ways to deal with this.

Personally I'd prefer if we didn't pave over the whole world with roads and suburbs.

reportingsjr··on Is air conditioning making cities hotter?
This is one reason I heavily push for roof top solar, even if it is a bit more expensive than utility scale. In many areas air conditioning is pretty much a given at this point.

A typical solar panel absorbs ~20% of the sun's energy blasted on to a city rooftop. If that's used to power air conditioning it's doubly effective. You're reducing the heat urban heat island effect from the sun's energy, and you're also not adding additional heat from external power sources in to the city.

On a large scale this would really help make cities more livable. On a hot summer day here in northern Kentucky I noticed a massive difference (I've roughly measured it at a 5-7F difference) going from less developed areas to the more urban areas.

reportingsjr··on FAA closes SpaceX Starship mishap investigation
Are you thinking of Tesla?

Musk has stated in the past that they are explicitly not patenting things or providing IP details freely to prevent other nations from using said IP.

reportingsjr··on Solar and batteries are going to win, and our thinking needs to adjust
People are doing exactly that with batteries these days though. Go look at youtube channels where people are building a cabin, traveling in a van/RV, etc.

I'm seeing lots of videos with a portable "5 gallon container" sized batteries that people are moving around.

Even better, since you can attach some solar panels and not have to go refill the container, unlike gas/diesel containers.

This isn't to say batteries/solar are perfect for this. But, they are certainly providing enough pros vs liquid fuels that tons of people are widely using them in place of gasoline/diesel/kerosene.

Personally, if I never have to hear a damn generator running all frigging day/night while at a campsite, the cost to switch to batteries/solar will have been entirely worthwhile.

reportingsjr··on ASML to Ship First High-NA EUV Tool This Year: $300M per Scanner
You hit the nail on the head.

SMIC can get a bit further with DUV, but they are certainly going to get eaten up with multi patterning. The additional cost and complexity from this will be significant.

reportingsjr··on LK-99 isn’t a superconductor
The current generation of mass manufactured high temperature superconducting tape is based on YBCO, which is a crystalline material (presumably what is meant here when saying ceramic). So the argument that superconductors need to be metallic/malleable to be useful doesn't really make a lot of sense.
reportingsjr··on Some remarks on possible superconductivity of composition Pb9CuP6O25
High performance gas turbine blades (e.g. in the F-22 engine and apparently some electricity turbines) are single crystal now as well. It's definitely a huge challenge to do manufacture, but possible.
reportingsjr··on How the Kentucky Cave Wars Reshaped the State’s Tourism Industry
The area OP is talking about is referred to as the Red River Gorge, it spans a handful counties (powell, wolfe, menifee, and lee county) which are in various states of development.

Definitely an interesting place to travel around. You can go drive 20 minutes and go from fairly developed tourist-ville with gift shops and well kept cabins galore to rough oil/logging roads with people living in rundown buildings in extreme poverty.

Lots of incredible natural resources that have been poorly protected compared to a lot of wild areas out west. Unfortunately it doesn't look like things are getting any better in that regard.

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