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cmbuck

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This would be an interesting idea if you were able to solve the problem of inner layers. Currently to reverse engineer a board with more than 2 layers an x-ray machine is required to glean information about internal routing. Otherwise you're making inferences based on surface copper only.

This guidance may help for sample collection, but wouldn't fully address the whole chain of custody. If the test equipment or handling tools/processes in the lab expose the samples to PFAS, then the test is botched. And this is challenging because PFAS are so prevalent and ubiquitous.

Don't get me wrong, I would love to have a test available for PFAS levels. However I've previously been denied a test from the medical provider due to the issues I've outlined above. So I think it would be helpful to know if/how they have addressed this problem.

I've previously been advised by my doctor that PFAS tests are of limited utility due to the lack of process controls which could introduce contamination. Given how novel this area of testing is and the prevalence of PFAS in all types of materials, you can't know whether any detection of PFAS in your blood sample is due to presence in your body or presence in the lab + testing equipment. How does your solution through Quest address this issue?

Eagle is far from an industry standard. In fact I don't remember hearing about a single company who uses it. Perhaps some small companies preferred Eagle. In industry it is far more common to see hardware companies use Altium, OrCad, Cadence, or even Mentor Graphics. I've also heard of one company who uses KiCad.

One of the big drivers for which EDA tool suite hardware companies choose is integration/compatibility with their Product Lifecycle Management (PLM) tools. My understanding is the bigger tools have better solutions for this than Eagle.

This is not a new concern, hardware designers almost always have tradeoffs like this. Just because the interface is standardized doesn't mean the interchangeable modules are identical or without trade-offs.

Sure you can swap in a new NVMe module or SO-DIMM into a given device, and while it may still function, you may now have worse performance and/or worse battery life.

Despite having the same physical interface, each NVMe module has different electrical specifications.

In the eyes of the decision makers, the loss of functionality you describe is a feature, not a bug. Making it harder for you to procure food "reduces waste".

It is the same line of thinking in which companies slash their call center staffing, add a recorded message about "unprecedented call volume", and then happily exclaim that since users have to sit on hold for hours, phone contacts have significantly decreased, thus "reducing waste" from an operational perspective.

Globulation 2 https://globulation2.org/wiki/Main_Page It's an RTS focused on macro instead of micro. It is cross platform and supports multiplayer! It's really simple in the sense that there are only three unit types, but the strategy is much more nuanced. One interesting dynamic I appreciate is that your unit limit is caused by the fact you have to be able to feed everyone, as opposed to some arbitrary max number the game picks for you or how many pylons you've built. (What do pylons do anyway?) The AI is challenging at harder levels and I still haven't mastered beating them regularly. I really enjoy this game

I suspect the battery arrived in "cut-off" mode. This is a mode which reduces battery drain specifically during the period between manufacture and customer use. In this mode the battery pack control circuit (inside the battery pack) keeps the battery terminals disconnected (no voltage on the output) until it receives a signal from a control unit (or microcontroller) in the device. Once the charging cable is connected to the phone it powers on control unit which essentially turns the battery on, and it's normal operation from there.

Using battery cutoff mode reduces the discharge rate especially during shipping/logistics periods, where the battery may be in transit for mouths or sitting on a shelf for a long time.

If the battery Apple shipped was the same OEM part, they probably just ship all of them from the battery factory in cut off mode--no special process for the batteries allocated for these repair kits.

Alaska no longer offers the policy I believe you are referring to, effective September 1, 2018 [1]. Their new policy, despite being advertised under the same name, only covers price drops within 24 hours of purchase, during which time you'd be able to cancel and rebook anyway. [2]

This is the kind of change that is not fun to learn the hard way.

[1] https://onemileatatime.com/alaska-airlines-price-guarantee-e... [2] https://www.alaskaair.com/content/deals/special-offers/price...

You seem to be extrapolating that since refined grains do not contain Mg, no foods do. This is not the case. OP can eat other foods instead of processed grains to obtain Mg.

"Since 99% of Mg is intracellular, serum Mg testing of the remaining 1% found in serum will produce misleading results (Mann and Truswell, 2002) and it should not be used in future research."

Elsewhere in the article they reference testing being of "negative utility"

This article completely neglects the influence of lower acceptance rates of upper tier institutions. Between 1960-1970 Harvard and Stanford's acceptance rates were 4-6x larger than they are today. It does not seem reasonable to me to assume that all of the additional applicants nowadays are low-achieving students. Assuming a roughly equal distribution of capability within the applicant pool, it makes total sense that average achievement (and thus, grades) would rise over time.

Yes there may be professors or programs that are artificially awarding higher grades than deserved. But the more likely case is that the admitted pool of students is just a higher caliber with stronger educational background than 50 years ago. If you agree that grades are a metric of academic mastery, then it makes sense average grades are improving, and are not necessarily an indication that somehow school has gotten easier than back in the "good 'ol days".

Unshakable by Tony Robbins. Good background and some nuts and bolts about investing and how to set yourself up for success.

The Millionaire Next Door by Thomas Stanley and William Danko. Wealth generation by means of frugality. Thorough presentation of studies and research on America's millionaires what they look like and how they got to where they are now.

Pistol sights 9 years ago

like, you know, every fucking first world country in the world

I don't find this a very compelling argument and it comes off as a personal attack rather than composed intellectual rationale. Instead of saying why you think this is a poor idea, you essentially say this is a poor idea because no one else does it--which is the exact thought process that stifles innovation and new ideas.

Regardless of whether teaching gun safety at that age is a good idea, your argument against it leaves much to be desired.

Yes, this seems much better than coal/oil, but isn't there a finite amount of heat under Earth's crust? Have we studied what would happen if we cool Earth's internal temperature by extracting heat in this way?

The Magnetoshpere which protects us from radiation is generated by the magma under the crust[1]. Eventually, if we interfere with the magma currents too much, don't we run the risk of damaging our magnetosphere?

[1] https://en.wikipedia.org/wiki/Earth%27s_magnetic_field#Physi...

Just Say No 9 years ago

In vehicles I am familiar with, the speedometer and odometer are both on the same circuit. Removing the fuse will cut functionality to both devices.