Slashdot Mirror


User: Ol+Olsoc

Ol+Olsoc's activity in the archive.

Stories
0
Comments
16,205
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 16,205

  1. Re:What's the benefit? on Get Ready For Atomic Radio (technologyreview.com) · · Score: 1

    One antenna covering a huge range of frequencies, rather than many. As the article says, a normal antenna is one or more conductors, each 1/2 wavelength long.

    Actually, their dipole is two opposed elements that are a quarter wavelength each element, but that's a drastic simplification.

    If you have many bands, such as the cellphone system, then you need one antenna for each band.

    With high bandwidths, such as will be used for 5G, you are into the sweet spot for this technology.

    In other words, this has potential.

    For the purpose of simplification, let's assume that you want to make a dipole at 1 GHz. The total wavelength at that frequency is roughly 300 mm. So a dipole antenna would be around 150 mm each leg.

    Now with the antennas being so small, we often add gain to them by making a Yagi-Uda antenna. This has a driven element, an element behind it, and usually one or more elements in front of it, all arranged by wavelength relationships. Total gain is related to entire length of the antenna, and directivity by total elements. Using this laser/cesium in a tube method, I'm trying to imagine a gain antenna. And failing badly.

    So it is kind of difficult to see exactly what this receiving only antenna can do in practical terms. An old school wire antenna can be used to transmit as well as receive, and both ends of smartphones do both transmit and receive.

  2. Re:Too little too late on Get Ready For Atomic Radio (technologyreview.com) · · Score: 1

    Pssst! Don't tell anyone, but Radio is code word for "conservative talk radio". Only conservatives spies get there marching orders from Rush Limbaugh. At any moment, they're ready to act on a coordinated attack against gays and hipsters. A Pearl Harbor event were they take San Francisco.

    Radio, ATOMIC Radio... be afraid! Be very very afraid for now the voices are to be heard much clearer now.

    You know - I think you're right about what a lot of people think. They hear the word radio, and they think of the dying AM radio world.

    I remember when Hams with their Handi-talkies were looked upon as nerds. Now people are hopelessly addicted to their smartphones, but they are somehow cool. Either way, those little devices are two way radios.

    I'm at breakfast now, connected to the restaurant's router with the radio in my laptop. Looking at the local mountains with all of their towers.

    For all of the AC's that think radio is dead, here's a cool little chart of frequency allocations in the USA https://www.ntia.doc.gov/files... I have a huge poster of this in my office to illustrate just how crowded the bands are. When someone gets spunky about "just find a space!" I tell them to go over to the chart and find the space to use. To make matters worse, even if AM radio dies off, those Medium frequencies are just too unruly for the kind of radio communications people envision today. So might as well allocate the whole band to Amateur radio for Hams to experiment with.

  3. I mean I could go on and on and on.

    You kinda already did.

  4. Re:Too little too late on Get Ready For Atomic Radio (technologyreview.com) · · Score: 5, Insightful

    Nobody has cared about radio for 15 years. Inventing a new form of radio is interesting but pointless.

    So you don't use a smartphone or a wireless router, or any form of wireless transmission? You don't care because radio is everywhere.

  5. Re:What's the benefit? on Get Ready For Atomic Radio (technologyreview.com) · · Score: 1

    Why is this better than current radio?

    Reading TFA, it isn't better. So we're going to replace a compact radio with a tube of cesium and lasers? This is exceptionally interesting, but trying to see the practicality of it is a non-starter.

  6. Re:Citizens argue that power of government... on Five Eyes Intelligence Alliance Argues 'Privacy is Not Absolute' in Push For Encryption Backdoors (itnews.com.au) · · Score: 1, Troll

    To get the gun nuts interested in the fourth amendment, you just need to package in language they can understand: The Deep State wants access to your cell phones so they can spy on your use of guns...and Hillary is behind this push so she can cover her tracks in Benghazi, where she'd jet off to for intimate lunches with al Qaeda. And she and Obama are planning for a Muslim America by accessing your phone and planting secret subliminal messages from the Koran.

    You pretty much nailed it.

    But then again, the second amendment isn't of any concern to the actual gun nuts.

    "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." Seems odd that these presumed adherents don't even want background checks. It's kind of difficult to imagine their well regulated militia - which well regulated militia is the very core of the second amendment - is open to any and all violent criminals.

    Seems odd that these folks are not agitating for access to all of the weapons accorded to their enemies the government, to include planes, tanks and nuclear weapons.

    I use and enjoy firearms, and own a number of different weapons. My favorite activity is target shooting, which provides incredible relaxation. The again, I don't have to worry about failing a background check. But I digress

    The second amendment was written at a time when the farmers and the governments armaments were not all that different. A group of farmers would be lacking cannons, but the basic firearms were very similar, and in a few instances the farmers had better rifles.

    Now my interpretation of the second amendment is based on the wording. There should be a well regulated civilian militia. This means that people who are trustworthy and willing to comply with regulations are welcome to join. And just like any military or paramilitary organization, that includes intense vetting.

    The second thing is that citizens in general will understand and practice the responsibility of firearm use along with the right to own them. I've seen too many Youtube videos of irresponsible firearm use.

    The gun nuts speak endlessly about their rights, yet so many document their irresponsibility. These aren't toys ,kids. These are devices designed specifically to kill.

  7. I'm not saying it was Aliens on Mystery of the Cargo Ships That Sink When Their Cargo Suddenly Liquefies (theconversation.com) · · Score: 1

    But it was Aliens.

  8. Go to hell you despicable running dog. American working people WANT the jobs that were stolen from them to fatten the wallets of contemptible shitlords like you.

    The only reasons you don't hear about this issue all day every day is are A) you don't associate with a single working class person, because you consider them below yourself; and B) you willingly indoctrinate yourself with semi-official propaganda, and the resulting myopia you call enlightenment.

    Ohhhh, you are just adorable!

  9. Re:Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    They are not fit for purpose!

    That pretty much says it all.

    The amazing thing is that the zealots are trying to blame the problem on everyone but the company that caused it:

    The companies that apparently decided all on their own to assume that you only needed a 32 GByte drive.

    My wife for not being a seasoned IT expert, and just like when she buys a car, she has the nerve to expect it to start. The nerv of that woman, thinking that if you pay for something it is supposed to work.

    Me because reasons.

    Microsoft demands control over the benefits of companies that partner with them.

    Too bad they can't make an operating system that actually works.

  10. Re:Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    Put Linux on it. Problem solved.

    Impressive that Linux manages to put a whole functional OS on some small drives, while Windows is now at Jabba the Hutt status.

  11. I think if you're looking at it as a software creation training class you're missing the biggest benefit, it's a logic/problem solving class. And while you can't make miracles training helps.

    Problem solving, yes. But logic? No. Programming logic is a whole different world than mental logic.

  12. As soon as you need reliability, security and performance, coding becomes anything but trivial. It also becomes something most people cannot master. Hence this just shows that 50% of parents have swallowed the propaganda.

    The one thing humanity does not need is more bad coders. There are already far to many of them.

    Exactly. The weird concept that everyone can code is like the concept that everyone can be the best athlete ever, or that we are all Einsteins if we only try hard enough.

    The skillset that makes a person a proficient coder are very specific, and cannot be force fit into a person. The ability to concentrate, work alone and whatever endorphin buzz one gets when the coding works is close to opposite of the pop culture world and personal opinion as an education world that most young people consider kewl.

    Coders aint cool, but they perform a vital function. The efforts to force fit others into that world will just make for unhappy, bad coders.

  13. If everyone can code, then coding wil be a worthless skill, meaning employers will assume you have it and won't pay a premium for the skill.

    American public schools - preparing today's students for yesterday's lucrative jobs!

    I agree with what you wrote. Except that everyone won't be actual proficient coders. This everyone codes effort is an unholy alliance of business interests who want a source of cheap labor, people who want to change the demographics of STEM, and those always optimistic folks who preach "You can be anything you want if you only try hard enough."

    I suspect that all three groups will fail completely. Perhaps if students are pre-selected for the "right" demographic, and forced into the field, the first two groups might be somewhat satisfied. The third group are idiots, and it doesn't matter, they'll go on thinking what they think despite failure. This will create a crop of unhappy and mediocre coders.

  14. An excess of BAD computer programmers.

    You can no more make 50% of the population good computer programmers than you can make 50% of the population symphony class musicians.

    This should be at +5. While I think that opportunities in learning how to code should be available in schools, this whole idea that we're going to somehow provide wonderful careers and fix perceived societal ills with teaching children the modern equivalent of "Hello World" and misguided effort to make coders into the kewl kids.

    It is pretty easy to add a semester of low level coding to allow kids to see if they might be interested, and an option for schools to have a club for the same.

    But I kinda doubt that the requirements for good coding - intelligence, ability to concentrate, and ability to do that concentration for long periods alone are ever going to appeal to the vast majority of young people, and will never be thought of as kewl.

    So after these classes and their obvious socio-political underpinnings are finished, we'll probably have about the same number of actual coders, of the same subgroups, and will have tortured the vast majority of students.

  15. Re:Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    FFS really? 32GB? Don't go MS for that, go the manufacturer for shipping a device that was not fit for purpose. They are the ones who low-balled it with a 32GB SSD when a 128GB one would have set them back an extra $30 US .

    Negative. When Microsoft decided tht thy were going to rewrite the entire OS on every update, it knocked out devices that do not have the space.

    Those Vista ready laptops and desktops that did not work wer built according to specifications tht Misrosoft very definitely said would indeed run Vista.

    I understand that there is a large contingent of people who will defend Microsoft in all cases. This is why I always say that Microsoft can do no wrong, only we can do wrong to Microsoft.

    And your idea that the manufacturers of thes computers ar eat fault is interesting. It wasn't just one, but all the major manufacturers who were so stupid to put in the substandard SSD's apparently no one listened to Microsoft when Misoft told them of the minimum requirements.

    Meanwhile, a ChromeBook runs very nicely on a 16 GB SSD. I ran a dual boot ChromeOS and Linux Distro on a Chromebook at one time.

  16. Re:Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    That's why I'm still posting from an Eee PC even now on Slackware; at least then your data isn't gobbled up by mysterious means, you chose to do it to yourself, always.

    I'll never forgive Microsoft for killing those nice little computers. I have a Linux dedicated PC myself. If I ever don't need it for it's purpose, it will be pressed back into service for my personal use.

  17. Re:Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    I've had to deal with a few of these for my work (I wasn't in charge of picking them out!) ... you have to have the Windows 10 update on an external drive already (I have it on an SD card I can just pop in), have another drive attached for temporary storage, disable Windows Update service, delete everything in C:Windows\SoftwareDistribution or whereever it keeps WIndows-Update downloads, disable hibernation (powercfg /H OFF) and disable page file, to get enough space on C: for it to run the upgrade. Also be prepared to wait a good 4-5 hours for it to complete (at least, for build 1803)... Totally ridiculous. Not looking forward to the October '18 build... Stay away from HP STREAM laptops, and the like.

    Grandma has the system down pat. I figured I could get something to work, but no way was I going to put up with that. So back it went. I picked up a cheap Dell with a 500 GByte drive. Bigger form factor than I would like, but at least you don't have to be an IT wiz just to get those forced updates.

  18. Re:Define better ? on Is Windows Coming To Chromebooks? (computerworld.com) · · Score: 1

    It won't work unless Microsoft supplies a stripped down version of Windows.

    I would welcome a stripped down version of Windows for my desktop. Microsoft was doing an alright job with every other release of Windows (xp was good, vista was bad, 7 was good, 8 was bad). Then they release 10 which has been their most successful crap OS. I'm still waiting for Windows 9 which would have been the good version. Maybe stripped down Windows 10 can be called Windows 9.

    I think it will be called Windows - rental edition. I wonder how the faitful are going to react when they get charged every month for their OS breaking updates. I wonder if after windows desktop as a service breaks tour computer if you are charged for making it work again. Or Windows renter's insurance. I can see it now......

    Nice laptop you got there friend. Be a pity if it stopped working....

  19. Re:Define better ? on Is Windows Coming To Chromebooks? (computerworld.com) · · Score: 1

    The hardware on your typical windows laptop blows the typical chromebook away.

    It won't work unless Microsoft supplies a stripped down version of Windows. Most Chromebooks come with a 16 GByte SSD. Some with 32.

    As it turns out, Windows laptops with 32 GByte SSD's do not have enough room for Windows updates. I took a new laptop back to the seller a couple days ago. Shades of "Vista Ready" laptops thatweren't capable of running Vista.

    Besides, what person who wanted a Chromebook would want Windows?

  20. Something worse than ChromeOS on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 4, Informative
    Want to know what Microsoft might be really concerned about? This is half on Topic since it's about what Microsoft should be worried about.

    My wife bought me a new inexpensive small form factor laptop for my use at breakfast and places I don't want to take my good laptop.

    A cute little thing, and surprisingly zippy. It had a 32 GByte SSD which helped with that zip.

    Then a Windows update came along. Oopsies - it failed. Not enough drive space.

    Okay, I attached a terabyte drive to download the update. It downloaded, then again - Not enough drive space on the laptop. That's weird, the only thing I installed was FireFox, something like 350 MByte.

    Oh hell. So I started deleting things I don't need. Then things I thought would probably be reinstalled with the update.

    Couldn't get below needing another GByte of space on the laptop. So I reset it and took it back.

    Looking around for another small form factor lappy, it seemed they almost all had those 32 GByte SSD's in them. And many of the display ones had the same "not enough space" for the update Windows.

    So congratulations Microsoft - you have taken us down the road we were on with "Vista Ready" Laptops.

    A generation of worthless lappys.

  21. Re:Microsoft worry? Not in my world... on Is Chrome OS Threatening Windows? (arstechnica.com) · · Score: 1

    And that's why Microsoft should be concerned.

    These fellas are smoking something. Until Chrome OS can have "native" applications like Windows does, MS doesn't have to worry. Where is Chorome OS' equivalent of Microsoft office?

    I have an answer for you: Nothing.

    Oh yeah, this old chestnut. So does a computer not work unless it has Microsoft Office on it? I haven't used Microsoft office since the went to the ribbon interface, and before my Chromebook met it's end via 22 oz of hot coffee, I used Google Docs On My Macs and Windows machines I use Apache Office.

  22. Does anyone actually complain about immigrants stealing jobs these days? If memory serves, that was the talking point in the Clinton era, when the left was against illegal immigration because they thought it benefitted big corporations. Of course, now that immigration has become a social justice issue, their stance has completely flipped.

    There is a lot of different opinions, but yes, some do https://www.usatoday.com/story...

    You don't hear as much about it these days because (I suspect) that as immigrants are kickd out, many of the low skilled american born low skilled citizens are kind of worried that the may be asked to take those jerbs that they bitched about imgrunts stealing. from them. Sometimes the worst thing you can get is what you asked for.

    The problems to me are twofold.

    Want to stop immigrant workers? Catch one, and imprison the person running the company a year for each illegal immigrant. Not a popular idea, because the owners of those company pay their baksheesh to the politicians.

    the next issue is a little more complex. The bckground is that typically, the first generation of immigrants usually take menial jobs as a way to provide a better life for their children. The children move a rung up the ladder, and rinse and repeat. As an example, My grandparents immigrated from eastern Europe, and worked as miners. they had children, and many of them move a notch or two up the ladder. My grandfather worked and was killed in the mines. My father first worked construction, then had a career as a low-mid level office worker. I became a professional in the science field. Upward mobility.

    Some of the relatives didn't move up, and they are the people of interest.

    We aren't supposed to do several generations of menial labor. And many people for one reason or another have either tried to.

  23. Re:additional eight paid weeks for physical recove on Microsoft Will Require Business Partners To Offer Paid Parental Leave (washingtonpost.com) · · Score: 1

    that will be three months that he is working, and getting paid for it.

    He is payed for the parental leave, too.

    Yeah, he is. That's my point. He's paid for not working. A person with the same job who is working during that three month period is accomplishing more for the same amount of money.

    So point is, if you are paying a person who is working for you for nine months the same as a person who is working for you for 12 months, Who is going to get more done for you? If the person you are paying for nine months can have plug in worker foro that three months, you are paying that person, the plug in, and if you have to train the plug in, that's even more outlay.

    Which reminds me, what if the plug in worker then has a child. Do they get three months off as well? It could be a Russian nesting doll of Paternity leave! Just kidding.

    But I really think we have beat this subject to death, no?

  24. Re:additional eight paid weeks for physical recove on Microsoft Will Require Business Partners To Offer Paid Parental Leave (washingtonpost.com) · · Score: 1

    If a father has nothing more to offer than moral support, he's a shit father.

    Whoosh. I asked the moral support question.

  25. Re:additional eight paid weeks for physical recove on Microsoft Will Require Business Partners To Offer Paid Parental Leave (washingtonpost.com) · · Score: 1

    What is your solution to having critical people take off for three months? Hiring a part time replacement.

    I work as a freelancer in software engineering. I happily do a 3 month project. And no, there are not many domains that require 3 month to get used to, to be productive.

    Then again: You know quite in advance that a parent wants to take a leave. As far as I remember a typical pregnancy is 9 month. If the employer waits till month 9, I agree we would have an issue.

    So tell me - are you capable of being the lead on say, a hundred million dollar project as a temp?