skysight-inc/HackerNews huggingface dataset:
Indeed the 24GHz and 60GHz gear has its unique rain fade issues not shared by 5.8GHz. Increased atmospheric attenuation of higher bands is the general trade-off for higher throughput and more compact physical isolation requirements. UBNT 24GHz gear is being using for ~10km links, but looks like the ~5km is the preferred limit. My original comment would have been better written to stress need to prove out the signal path over all intended bands, e.g. primary link over (near) optical and fallback over whatever RF band proves viable.
Is it the same person who has started adding items to Hacker News in all caps? Please get with the times; not even the National Weather Service writes in all caps anymore.
My one comment as a biologist is that the biology community calls the rats they used in that study (Sprague Dawley) should be called "cancer rats", because they seem predisposed to getting cancer no matter what you give them. It's not clear to me whether this is humor, or not.
Another way of putting this: if people found strong epidemiological evidence that drinking water caused obesity (they haven't, yet), the nature of that mechanism would be subjected to intense scrutiny.
> The good: On the other hand, actively interacting with people — especially sharing messages, posts and comments with close friends and reminiscing about past interactions — is linked to improvements in well-being. This ability to connect with relatives, classmates, and colleagues is what drew many of us to Facebook in the first place, and it’s no surprise that staying in touch with these friends and loved ones brings us joy and strengthens our sense of community.

SERIOUSLY? Such a surprise that engagement, which incidentally is what's most valuable for Facebook's data collection and monetization efforts, is good for you!
How are these people hoping to be taken seriously on a scientific level?

This is a level of corporate bullshit and denial I've hardly seen before. Wow.
> Their silence was directly a consequence of the doxx culture that would have meant their entire lives would be thrown into ruin for sharing their point of view.

You are making that claim where the evidence is people speculating about a case where they decided not to test the veracity of your claim.

Is there any evidence that your Mom and her friends would have been fired for expressing their political views?

I'm asking because here in the South people who voted for Trump a) express their views when I talk to them, and b) then go on about their day. Frustration, contention, and disagreements, and confusion abide but that's largely a function of Trump's high-noise rhetorical strategy and people (esp. older/retired) getting all their news from a single source. (Btw-- what happened to the stereotype of the proud/responsible U.S. working man reading multiple newspapers at the breakfast table? Is that just a myth of a bygone era?)
I think the most important thing in a cover letter is stating your motivation in relation to the company you are applying to.
Just of out curiosity to the HN crowd - why is understanding the finance behind venture capital so interesting to people? I regularly see posts like this (including stuff I've written) and people are absolutely enamored by it. VC's likely represent a small fraction of the people on here, and are definitely a small fraction of the overall finance community, so why so much interest from non VC folks?
Actually, considering the distances I would assume that high-entropy high-frequency noise near the laser such as people walking nearby, engines roaring, air currents, etc are much harder to deal with than the low-frequency predictable movement of the ship caused by large waves.
OK, but I'm talking about those cases where people have already provided reasons not to trust them. And I don't mean people who are affiliated with their group by default, such as people who happen to have been born in North Korea and whose opposition to the United States is thus an inherited position, but people who choose to affiliate with other actors.

Put another way, sure, people are products of their circumstances to some extent, but they do also have agency, and insofar as they choose to be aggressive I consider them 'bad people' until they abandon such choices.
I can run 10mph for 13 miles, and I’m in my fifties. That’s not to brag, but to point out that an 8 mph speed limit on a treadmill is ridiculously low. Sure, it probably fits the 80% use case, but that’s only about 8 minutes/mile. Not a very useful treadmill, IMO.

But I’ve been on a treadmill less than a half dozen times in my life, so what do the treadmill makers care what I think. :-)
You might want to check out the extensive writings by Robert Parks of the APS on this issue. Before his death he was a crusader about this argument over non-ionizing radiation being the same as the disproved theory that high voltage power lines cause cancer.

BTW, how is the 1905 paper a canard when it is accepted as the mechanism behind DNA being damaged by ionizing radiation?
Obviously, the first step would be to repeal the second amendment. Since that train ain't leaving the station, the threatened tyranny, while lovely to dream about, isn't so likely.
> That’s why we recently pledged $1 million toward research to better understand the relationship between media technologies, youth development and well-being.

Funny that they do their research _after_ they launched Messenger Kids. I would expect someone with good intentions to have swapped the order on that one.
Yes, a lot:

* Genetics

* Natural mutations

* Viruses

* A huge list of substances (called carcinogens), including alcohol

* Being overweight, sedentary, or otherwise unhealthy
Oh come on, you posted 2 hours after i clarified i meant excuse to not vote, your first point completely missed. (the rest is tackled by Latty)
Does them heavily competing actually mean that they don't talk to each other? Are there special situations where they do anyways? (e.g. industry events). How large are they - over a certain size, employees are unlikely to take it that seriously to not talk to employees of competitors.

Do people regularly move between companies in the field?

Are there external companies/contractors hired by multiple companies in the field?
> It would be desirable for our programs to always have meanings that aligned with their behaviour, but we shouldn't turn a blind eye to the fact that many programs don't.

The meaning of a program is its behavior, period. If reality doesn't agree with your views, it's your fault, not reality's.

> Any practical programming language will give you some way to find the memory address of a particular value, so values that we usually consider as semantically identical are not actually indistinguishable in practice.

Standard ML doesn't give you any way to get the memory address of a particular value, so values that are semantically identical are actually indistinguishable in practice.

> We deal with this by only assigning semantics to a subset of the language that excludes those operations.

That doesn't make sense. Semantics is a property of the real programming language you are using, not the fictitious one you wish you were using.
That is why I am waiting for strong epidemiological evidence, before suggesting we actually pursue the physical mechanism.

I think most of the reporting around cell phones is needlessly alarmist. It's not helped by a number of scientists who persist in running low-quality studies and producing vague, unactionable results, coupled with lots of PR.
> Is profit taken into account in Facebook's feed algorithm, or is it just our well-being (encouraging active social interaction, as the article describes) that's being considered?

THIS. That's exactly why this "feel good" pseudoscientific bullshit Facebook spits out from time to time sounds so disingenuous: they never take their profit - which is their main motive - into account. Pathetic.
Here is the Guardian piece on it that reads much better. https://www.theguardian.com/science/2017/dec/11/excitement-a...
Hmmm.

I thought they were both instant messengers, just AIM was more popular in US and ICQ was more popular in Israel and Eastern Europe.

One distinct feature AIM had were the IRC-like chat rooms.

---

You may be confused WRT an ICQ "offline messaging" feature, which IIRC allowed one to send messages to offline contacts, who would see the message when they signed in.

---

Also in case you didn't know: ICQ is a (too lazy) of "I Seek You".
many homeowners are electing to retain ownership of their home but rent it out. this has reduced the inventory available for purchase. many homes on my street in Los Gatos have become rentals. when my new neighbors (renters) tell me their monthly rent, my jaw drops.
Then just turn if off when not talking and as an added bonus the battery will last for weeks.
XMPP is not bad but I'm hopeful for matrix-like protocols, which support the decentralized model of operation...thereby hopefully allowing for longer - not so easy to shutdown - shelf life. But the beauty of open protocols is that bridges can be built between xmpp and matrix...so everyone wins!...well, everyone adopting the open stuff. ;-)
So a lightweight version of ffmpeg/mencoder, but what is meant by "lightweight" in terms of stream video processing? Does it perform conversions from one codec to another using less CPU cycles.
One other thing that I wish more shops would offer is fit tests. The one I did was over an hour of adjustments to a stationary bike that was designed to be adjusted (i.e. the frame measurements could be changed) and them watching me ride it with a slow motion camera. At the end of it, I now have exact measurements that let me order a custom bike or know whether a stock bike will fit me if I order it online. It simplifies the online shopping process immensely because I know there are specific brands that simply don't work for my body type without extensive modifications once I get the bike.

It's probably not applicable to people who are looking for a $100-$200 bike, but for people that are looking at $2k bikes, getting this kind of test done is well worth the $100 or so that it costs. Having a bike that isn't just adjusted properly but is the perfect size for your body makes such a big difference in how enjoyable it is to ride. It's funny to look back at the first few bikes I bought and the buying experience. I basically looked at features, reviews and aesthetics to arrive at the one I wanted and then had the shop adjust it for me. And while I could ride it, it was never anywhere close to the comfort I feel on a bike that I've selected based on my exact dimensions and riding posture.

If people are going to buy their bikes online, shops should lean into that fact and try to provide services that facilitate the customers preferred buying experience. This kind of ~$100/hr service is both a money maker and a way to enhance the online shopping experience.
I wonder if as long as most of a team has distractions like facebook and Hacker News turned up full blast, having Slack distract them is probably actually a good thing, if their jobs are more useful than social media and news. Sucks for the few in the team who have their social media and news habits under control, though.
How Solar Panels Companies Are Causing Foreclosures to the Elderly
It's worth noting the influence British colonialism played in emphasizing caste in India, a strategy otherwise known as divide et impera.
I suppose it is good knowledge to have incase you find yourself in the seed investor's shoes. It is likely that many on HN have an interest in understanding this from a seed or angel investor viewpoint.
That's why I read these. But then again what do I know.
It'll continue to be a systematic issue until there's an "event" that makes international headlines. I work for a small industrial control company and even the mentality of my coworkers is the security I enforce is an "inconvenience" to their jobs.

I've started training another young engineer in training in the work I do since I can't keep up with the workload and he's questioned every single piece of my setup guides to deal with security. "Why do we need to do it this way? Isn't it easier to skip that?" "How come we block this? Why is that feature disabled?" etc. etc.

Heck, I've found that vendors are frequently pretty upfront about their devices and hide no secrets that their devices are exploitable if you go against their recommendations for basic security. But as soon as a know-it-all hears of how convenient opening a firewall port is or enabling config access from the public interface its a fight to explain to him why it's a bad idea. Maybe it hasn't blown up yet but we don't want an incident before we do it the right way.
Not the same at all.

An individual homozygous at a given loci has no guarantee that its offspring will also be homozygous. It will have one copy from that parent, but the other parent may or may not provide an identical copy. If it's a new trait (say a doomsday gene), then no other copies exist in the breeding population, and all offspring will be heterozygous. If the overall population is static, then average expected fitness is two offspring that make it to breeding. Thus, there will be two copies of the 'doomsday' allele in the population, just as there were in the original homozygous parent. In other words, the total number of alleles remains static over time.

In order for an allele to take over a population (become fixed), it must confer a fitness advantage, or else make it there by pure chance. Relying on chance, you have to introduce huge amounts into the population so it becomes the majority, otherwise it will be eliminated.

Gene drive is completely different as these constructs can copy themselves to the homologous chromosome in heterozygous individuals. Offspring will be homozygous even when only one parent contributes the allele, and thus the expected allele content in the population will double each generation. Now only a few individuals need to be introduced into a population for the trait to become reliably fixed.

It's exponential, and it's truly terrifying.
I find it funny that we have completely reversed methodologies on hiring. If someone gave me a resume with bullet point skills as the first thing on the resume, I would be impressed. Though you can't have too much or too little of any of these elements.

That is interesting. We are seeking the best way to do something, but we are forgetting that people, the interviewers are all different, looking for arbitrarily (but defendable) different things..

Far as new grads. When I got my first job, I did list my class projects, but I focused more on the internships I had had (3 by that point), as well as my freelancing, and the work with open source 3d printers. If a new grad only has projects that would be a red flag.
> If reading HN has taught me anything, the tech scene is full of conservatives and libertarians.

In my experience, libertarians yes, conservatives not so much. Also, libertarians have to tread extremely carefully in tech. The true libertarian perspective doesn't fit with the new left at all, and can be easily misinterpreted as supporting racism/harassment etc... Try making a joke about dongles with a friend at a conference (totally fine from the libertarian perspective), and watch the dominate ideology of the left in tech crush you...
so glad to see that place mentioned! it was my morning coffee stop when i lived in new york. the owner/operator is great to chat to, lots of interesting stories about the neighborhood.
a bit like saying, "your problem is your expectations about mozilla's commitment to privacy, transparency and choice"
I wonder if part of the reason for uncited papers being so low is that authors cite their own papers in subsequent papers. For example, an author is studying field X, and publishes papers. No one cites the first paper. The author then writes a new paper on X, but cites the first paper. Thus, although no one but the author cited the papers that the author wrote, all but the last one have citations in other papers.

Another way this works is that authors in the same department may cite each other's papers especially if the fields are somewhat related.

I wonder what the data would look like if they excluded citations by the authors of the original paper.
Donated $100. Supposedly a donor will match your donations 3 to 1 so in a way I donated another $300 to them.

We can't know who we are unless we know where we came from. That goes for politicians, companies, and organizations as well. We appreciate them, but probably not enough given that this information would be lost or entirely inaccessible without them.
What he is saying is that he is investing only so much that a financial crisis (total loss) doesn't result in a personal crisis (divorce, can't pay rent, etc)
In many cases this idea is illegal under local zoning laws which is....unfortunate.
Two Studies Show Vast Majority of People Who Support Ajit Pai's PlanWere Fake
There are plenty of things that damage DNA in the test tube, some of which cause cancer. Ionizing radiation is one such thing, and the mechanism behind it is that 1905 paper. Many other examples are chemicals.
It’s what makes HN the most civilized community I’ve encountered in a long, long while. These small niceties, though insignificant on their own, make a significant difference in setting the tone for this place.
I was running Bushy parkrun[0] one Saturday in 2012 when Mo Farah was on a training run, in the opposite direction to the masses. It was like Road Runner went past, incredible pace. I was also there when Andy Baddeley got the parkrun record, 13:48. It just seems so ... ludicrous and impossible.

[0] http://www.parkrun.org.uk/bushy/
Back during the .com era, I got bored one day and looked up the cheapest house for sale in Cupertino. $300k got you what would have been a crack house in the RTP area - run down, no lot, chain-link fence to keep people out.

I just repeated this experiment - $500k for a 1-acre lot with a shack on it, or $925k for a 2 bedroom condo. Those prices are insane. Yet every time I think they're unsupportable - they go higher.
I think a preferential voting system would be the first step to dismantling the two party regime.

It would make it "safe" to vote for an independent candidate without people feeling like their vote was being thrown away. In time, that would lead to more specialized parties running.
And here, we went from being able to get ABC from literally anywhere in the house without the antenna extended to having to get the position right when in a good location; we also lost plenty of other channels.
No, that's not a valid construction in English. But this points to an interesting distinction between different language families that is useful to know about and aids mutual comprehension: https://en.wikipedia.org/wiki/Subject%E2%80%93verb%E2%80%93o...
How much of the gains from the computing revolution have been captured by a few thousand Bay Area Landlord’s?
I disagree - at a gym, the experience is completely voluntary and the group is self-selecting. You may be bonding, but with people already like you.

The key with military is being forced to do something you hate alongside complete strangers with little opportunity to socialize outside of the group, under threat of court martial for leaving. And the group of strangers may change at any time. You really have to learn to get along, or work people you don't respect or hate.
>Now, what does all of this mean in this great period of history? It means that we've got to stay together. We've got to stay together and maintain unity. You know, whenever Pharaoh wanted to prolong the period of slavery in Egypt, he had a favorite, favorite formula for doing it. What was that? He kept the slaves fighting among themselves. But whenever the slaves get together, something happens in Pharaoh's court, and he cannot hold the slaves in slavery. When the slaves get together, that's the beginning of getting out of slavery.

-Dr. King
There's a picture emerging that syncs up a lot with something I've learned in my real life interactions over the last few years.

When two people are interacting on a friendship basis, they should both be talking a roughly equal amount.

For whatever reason, I noticed that I had made a lot of acquaintances where our conversations are always the person essentially just giving me a long monologue. These "friendships" really weren't friendships at all. I was spending a lot of time with these people but they weren't really contributing much to my life, nor vice versa.

I kind of figured out that I had somehow learned to be a really good listener and not a talker in social situations, and that attracts a certain type of person: people who like to talk. Those people aren't necessarily always great friends for me. They might be, but in many cases, they might just be people looking for someone to talk to.

So now I always make sure that when I'm hanging out with someone and having a conversation, I talk about as much as they talk. Even if it's about something pointless or irrelevant, I just do it. That's how I filter the people who find me interesting or have things in common with me from people who just need someone to talk to.

I suspect a lot of people have been having this same experience that I had, only online, and the solution is probably the same.
Yes, my mother's favorite fertilizer on the farm was 8-12-16 with micronutrients, which were mostly minerals.
So, if a dishonest person with dementia says that water is wet, and you wanted to challenge his/her position because it is your personal opinion that water isn't wet, you just ad hominem them, and say that it is not ad hominem?

I will give you this much. Your length response sound like you're a pretty educated person.
I'm not interested in this.

I wished there was an article on "How Hard is it to generate a 10X return" for normal, Average-Joe investments (ie stocks, bonds, real estate), and how a 10X return is actually at most 6X return, because you need to take into account taxes, costs, and inflation.
I was looking into a CS academic who claimed to be widely cited. Mostly it was self-citation, in his own papers. He seemed to be the editor of a journal which published a lot of his own papers citing himself.

I couldn't help thinking of that looking at the graph of decreasing uncited papers.
Actually that's a good point, you don't really need a Faraday bag because airplane mode should have the same effect.

I say should, because I keep hearing about how phones don't really turn the radios off when you put them in airplane mode. But at least you don't get phone calls in airplane mode.
> make systems that could explain themselves

Yes, but currently the systems we are building have no sense of will or agency.

If we succeed in building systems that do have more complex objectives, then how can we be sure that the human and machine's objectives are aligned? How can you be sure the system is explaining itself to you in an honest way?

Note that there were two different goals in building computers and software: 1) building things that have full control over and 2) building things that are more and more clever and useful.

In the limit, those two goals can come into sharp conflict.
Mi-26: (MTOW - Empty Weight) ≅ 27800kg
Yep €4 for a 0.5 liter bottle of water. Needless to say I eat and drink before going to the theatre.
Mark Zuckerberg is 33; his classmates are not having grandchildren yet. Facebook did not have to do anything to 'expand to grandparents'; grandparents could create accounts on Facebook as soon as anyone with a general e-mail address could.
Look at the graph in http://www.arrl.org/files/file/Technology/tis/info/pdf/hbkrf...

You can see that the worst frequency range is 30 to 300 MHz meaning that range has the lowest acceptable power levels that are considered safe.

The entire short article is quite good.