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velosol

204 karma · joined August 10, 2018

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velosol··on James Webb Space Telescope emerges successfully from final thermal vacuum test
If it was direct government employment did they clarify final salary? There's the 'salary' and then the locality increase [1] which is a base of around 15% and goes up to 28% for places like DC. 102k (1.28*80) is still not worth it especially without prior federal service as you have pension vesting etc to wait for before your benefits are worthwhile.

[1]: https://www.opm.gov/policy-data-oversight/pay-leave/salaries...

Fixed math.

velosol··on Air Pollution in Our Homes
Incidentally this is why there are limits on range hood CFM without makeup air (and there are broader recommendations on overall house design from groups like ASHRAE for air quality management). There are also whole-house leak tests in some regulations, e.g. Title 24 in California.

Typically it's around 300CFM before you should consider a mechanical make-up air device (gravity activated or a makeup air fan tied to the hood activating).

velosol··on NYC scientist fired after raising questions about a DNA test gets $1M settlement
He was a Captain (O-6), he had been selected for Admiral (O-7), and was forced to retire as a Commander (O-5); it was a demotion.
velosol··on What Is Suspension Trauma a.k.a. Harness Hang Syndrome?
Given the address in your profile I'd suggest you might also want to have your team have access to non-cell communications. Sometimes you're at a tower that doesn't have great cell reception and even if the team is able to rescue an injured member they won't be able to safely transport them and be stuck sending someone to find cell coverage and call for an ambulance.
velosol··on What Is Suspension Trauma a.k.a. Harness Hang Syndrome?
Safety harnesses you mention in 3 are also often for fall prevention* not fall protection. Fall protection harnesses aren't much better but typically will at least have padded leg loops.

*: Prevention: when tied in you can't make it to a place you can fall such as a system that prevents you from getting within a few feet of a roof

Edit: the link you provide seems to be a lightweight fall protection harness and certainly one I'd like using as I prefer a lighter harness when working at height because it means less fatigue and less chance of a mistake leading to a fall.

velosol··on Oregon students returned thousands of fake iPhones, costing Apple $900k
A 'lot' is a unit of issue in this case as a supply/logistics term. It means buying a grouping of damaged iPods (say the lot was 25 or 50 individual iPods).
velosol··on Keybase is not softer than TOFU
That seems nicer than the method without Ti requiring you to find the backup and move it 'by hand' to the right place on the new phone.
velosol··on Peltier Application Note – Thermoelectric Cooling [pdf]
A metal aerogel would have very high surface area (much like adsorption humidity control crystals) but that's not really helpful when you then need to move the fluid touching all that surface area in order to remove the heat.

Typically the fluid will be air which sucks at moving heat (hence why aerogels are great insulators as they hold a lot of air).

I'm not positive but I suspect that an aerogel in a higher specific heat fluid wouldn't do any better as the flow volume through the aerogel would be quite low bounded by the volume of the aerogel.

If you want to cool the hotside of a TEC you need to push a lot of watts per unit area. The best things for that are high specific heat fluids which are often used in compressor systems and then they're termed refrigerants so you're back to traditional air conditioning. The other option is very cold fluids (liquid nitrogen) but at that point you may be better off bringing the LN2 into more direct contact with whatever you're trying to cool.

velosol··on Using a Yubikey as smartcard for SSH public key authentication
Personally I'd prefer as open a standard as possible usable across the greatest swath possible (e.g. Chrome Windows/Mac, Chromium Linux, Firefox W/M/L, Android Chrome/Firefox).

Someone else seems to second lower-level standards as the best way [1].

[1]: https://news.ycombinator.com/item?id=19567277

velosol··on Keybase is not softer than TOFU
Signal now uses the Android hardware keystore such that you cannot use a root app like TiBackup to move the Signal data around anymore. Instead you have to use Signal's built-in backup and then place the backup on the new phone and setup Signal again (generating a new ID key).
velosol··on New iPad Air and iPad Mini
Living closer to the coast (high humidity and salt content), living in the drier regions of the country (low humidity) could be part of the puzzle.
velosol··on U.S. to ground Boeing 737 Max 8
>Agencies operate somewhat independently, precisely to prevent the appearance (and reality) of political interference.

Unfortunately Trump didn't start this trend but I really hope whoever is next stops it.

velosol··on Faxing is growing in popularity
Possibly even attach it to another medium originally intended for data.

Also, I love your username in the context of this subthread.

velosol··on W3C approves WebAuthn as the web standard for password-free logins
Their main page for mobile heavily implies they are already there with iPhone/NFC.

https://www.yubico.com/products/yubikey-for-mobile/

velosol··on Windows 10: New study shows Home edition users are baffled by updates
Did you three friends move to Linux? You said Windows twice and I'm curious what they actually switched to.
velosol··on How Much a Dementia Patient Needs to Know
> To feel useful is a very basic human need.

I found it fascinating to read that sentence when I read from the article that routine is critically important. The article didn't seem to say that usefulness or value were what mattered or necessarily considered rather that things were familiar.

More broadly I think that the belief you mention is primarily from the protestant work ethic [1 & 2]. Absent that social norm I'd argue that needing to feel useful and the associated need to work is not part of the fabric of humanity. Feeling needed and feeling that work is a reward is one path to happiness or pleasure but it is not the only one.

I think a case can be made of not wanting to be a burden on a loved one but, sadly & cruelly, at some point dementia robs you of even that worry.

[1]: https://psmag.com/economics/protestant-worth-ethic-real-6554... [2 linked from 1 & more succinct summary]: https://hbr.org/daily-stat/2013/08/there-really-is-such-a-th...

velosol··on The phone-makers bringing back buttons
Those who drive manual cars are frequently removing a hand from the wheel to adjust an aspect of the car without looking and I would be surprised if the momentary loss of a hand on the wheel would mean manual drivers had more accidents than automatic drivers.

Re: steering wheel buttons in general, it depends on how they're implemented. If you take an old idea [1] and provide tactile locating then it is easy to learn. If you can reuse a common paradigm (a knob for volume) there's no learning required. The steering wheel also is already a busy place - you have two or more stalks nearby, sometimes cruise control is part of the steering wheel buttons and even if not the amount of space means you are forced to provide a subset of functions. A stereo with tactile-marked buttons and knobs is known to most drivers via other paradigms and is easy to swap between cars.

[1]: https://patents.google.com/patent/US2350059A/en

velosol··on FTC Brings First Case Challenging Fake Paid Reviews on an Indie Retail Website
I don't see where the parent post (or FTC page) mentioned real IDs?
velosol··on Whitespace killed an enterprise app
Power users tended to use shortcut keys which are STILL (Office 2016) supported. Want to add an image from a file? Alt, I, P, F and you have a file picker on your screen ready to go.
velosol··on The Great Brazilian Sat-Hack Crackdown (2009)
And if you think you're clever by using a jammer while mobile, you're in for some financial pain on top of any legal issues you create for yourself.

https://www.fcc.gov/document/fcc-fines-florida-driver-48k-ja...

velosol··on AMD Ryzen 5 2500X and Ryzen 3 2300X CPU Review
People have mentioned better luck buying Samsung-branded ECC UDIMMs. I heard, but couldn't verify, some of their modules are even on the latest QVLs.
velosol··on AMD Ryzen 5 2500X and Ryzen 3 2300X CPU Review
As someone with a Ryzen 1xxx, X370-based motherboard, and 32GB of ECC RAM the link you give is a bit out of date in that Windows 10 better supports ECC (the same X370 with `wmic memphysical get memoryerrorcorrection` reports 6 now). Much of the rest of the article about a wide selection of memory, finding the motherboard firmware toggles, etc are still valid.

There are also posts at other fora complaining that Hardware Canucks is wrong to suggest that an uncorrectable error should result in an immediate system halt - I leave that argument to those who are interested.

velosol··on Death and Valor on an American Warship Doomed by Its Own Navy
There's at least Red Hat according to: http://www.esi.mil/AgreementList.aspx?type=2
velosol··on Firefox 66 to block automatically playing audible video and audio
I remember a time that 'stop' in Firefox stopped all animation on a page too (blink tag, GIFs).
velosol··on Practical Linux Hardening Guide
While not part of the OP - there is some information on a common TPM use (LUKS unlocking) with the later TPM 2.0 options (TPM 1.x was not amazing with Linux).

https://blog.dowhile0.org/2017/10/18/automatic-luks-volumes-...

velosol··on Queueing theory: The science of waiting in line
And that would be my fault - my parenthetical was just imagined reasons why there might be a saturation-related slow down.

In trying to look for the source I did come across [1] from a few years ago and may have been remembered incorrectly.

Edit: More details at [2], [3], and [4] some noting transient braking may be a factor.

[1]: https://www.npr.org/2013/11/29/247825768/phantom-traffic-jam...

[2]: https://www.vox.com/2014/11/24/7276027/traffic-jam [3]: http://math.mit.edu/projects/traffic/ [4]: https://www.sciencedaily.com/releases/2007/12/071219103102.h...

velosol··on Alarming Decline of Quality Youth Playtime
And yet someone relating a swarm of cop cars when they arrived home in: https://news.ycombinator.com/item?id=18984211 .
velosol··on Why are glasses so expensive? The eyewear industry prefers to keep that blurry
It was signed in August 2017 and the FDA has 3 years to allow sale of hearing aids for mild to moderate hearing loss.
velosol··on Why are glasses so expensive? The eyewear industry prefers to keep that blurry
Also might want to check out straight-armed glasses. Typically they'll have some roughness or rubber where they meet your ears to help stay on your head like some fancy sunglasses.
velosol··on Queueing theory: The science of waiting in line
So should I leave space on the highway so my lowest speed through the occasional slowdown is higher than average or am I hurting the traffic flow?

I recall reading about (highway) traffic being a queuing problem where the arrival rate exceeded the clearance rate due to a transient action (someone tapping their brakes because they were distracted or a bright glint from a glass truck going the other way). If you decrease the arrival rate slightly such that the clearance rate can remove the stopped/slowed cars then the entire traffic flow will return to the norm for the volume of traffic on the road.

Sound? Valid?

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