* Posts by Mage

6451 posts • joined 23 Nov 2007

Samsung keeps the smartwatch alive. Just

Mage
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Re: hand-warming

That was the Intel smart watch.

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Bitcoin Foundation wants US Department of Justice investigated

Mage
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Western Union

It's not a currency, However it's been used for scams and money laundering due to lack of checking who is sending money (=buying & selling bitcoins) and inadequate checking of recipient who can vanish. Never buy on Internet or classified and pay with Western Union.

In EU they have implemented new regulations at offices taking money for WU.

The IBAN (used nearly everywhere except USA and rather more secure than WU or PayPal) is not a currency. It's a way to transfer money that can be in different currencies. Use requires a bank account. Creation of a bank account in most of EU is subject to strict anti-money laundering.

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LG teases us with svelte V30 but refuses to say if it's coming to Blighty

Mage
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Interesting

The main value though of 96 kHz recording is that expensive antialiasing filters aren't needed. There is no need at all to store the processed audio at more than 40KHz sample rate, so the regular 48KHz is fine.

I wish my laptop had that screen resolution, or indeed ANYTHING more than 1080 vertical.

"Key European markets"

Looks like UK is "crashing" out of those. Still, Amazon.de has an English language option. It translates well too. Useful already for people in Ireland as unlike UK, Ireland uses the Euro. The Amazon.ie still redirects to the Amazon.co.uk site.

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Western Digital has cloudified the NAS and shoved it in a trendy box

Mage
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But

Can it be 100% NEVER connected to the Internet?

Can I sync via ethernet, USB or WiFi WITHOUT the Internet? If you can only sync via the Internet it's a failure. If it needs a 3rd party server (=Cloud) to sync to your devices and/or a subscription it's a total failure.

Security, privacy, exact functionality seem vague?

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Microsoft's fix for web graphics going AWOL? Disable your antivirus

Mage
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Re: Untrusted Font?

Yes, there are / have been vulnerabilities exploited. More recently in some Adobe format than TTF files.

Also the issue of privacy. Fonts being used to track, because people are blocking the 3rd party cookies (browser setting), clear gifs, 3rd party scripts etc (NoScript). I only allow fonts from same domain as webpage. Also you can (on Linux anyway) download many of them so they don't need to be loaded from the 3rd party domains.

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Mage
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Devil

Re: Who'd be a web designer?

Well, fonts and fonts. Using a font for icons (especially not even on your own server) is stupid. If it's for an Icon, then use png and/or SVG. A font used for icons has no fall back. It's a stupid idea copying "Wingdings" on Windows which were convenient but stupid (emailed or LAN doc to someone else without the font. When it's a text font missing, you do usually get text. Unless it's Chinese etc and you have NO Chinese fonts but then you if you can read Chinese, you'd have some Chinese fonts.).

There are good web designs, and also rubbish ones with big animated images, gazillions of images/icons done by fonts, dark grey text on black or light grey on white, fixed layout (either to suit small phone or giant screen), totally flat with no hint as to links or menus etc. Or different versions for different clients (you can do ONE site that works on ANY size screen, the original reason that text flows and isn't like PDF. Imitating multiple sizes of PDF isn't smart. Or changing content according to OS detected (maybe I want to download MacOS or Windows program on my Android or Linux mint client).

Putting an embedded "Google Maps" but no address or phone number for a web site for a "Bricks & Mortar" only business. Or Contact us via Twitter/Facebook (A bot and spammer unfriendly contact page is trivial), even on big companies.

Most web sites seem to be badly designed.

Yes, MS approach to this is idiotic. It doesn't mean many web designers aren't clueless.

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Nest cracks out cheaper spin of its thermostat

Mage
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much easier to use than a traditional beige box

How?

My thermostat has a single knob calibrated with temperature. It takes no power, has no software vulnerabilities. It's a mechanical switch using a bimetallic strip to sense the ambient temperature. We use it to set the bedroom temperature. So it was was set about 18 years ago and hasn't needed to be changed.

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Terry Pratchett's unfinished works flattened by steamroller

Mage
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Re: IDE drives

It was only last month I dumped a load of MFM drives, controllers and mobos at the recycling centre. I have an actual IBM AT (though with VGA card and AST memory expansion) in the attic. It might still have MFM. I also dumped old "IDE" drives that used same parallel cable but not the regular IDE/PATA port. Also three kinds of SCSI drives.

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Well, debugger me. Microsoft's BSOD fixer is getting a makeover

Mage
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Re: Know your market

"some UI tweaks including the iconic ribbon"

One of the worst GUI ideas ever, up there with hiding [least recently used] icons and menu items. The infrequently used stuff must NEVER change location, not even on new versions, or else you can't find it!

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AMD agrees to drop $29.5m to make Llano go away once and for all

Mage
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Coat

Wasn't as good as promised.

Shareholders felt they had been misled.

Um, isn't this the case of MOST products, especially bleeding edge tech, hyped and over sold?

Magneto Optic Disks (Worked but too expensive and storage didn't increase enough).

Z8000

Apple Lisa and Pippin. Apple Newton handwriting recognition.

So called 3D TV (actually stereoscopic)

Sega Dreamcast?

Intel Xpoint memory

HP Memistors

IBM Watson

All Voice Assistants

Itanium

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Mage
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Alert

Re: Intel deliberately crippled all consumer chipsets

4G or 8G of RAM?

Actually many Atom chips (even the 64bit ones) can only address 2G of physical RAM. Presumably so these could be sold cheap to compete with AMD or ARM in Netbooks / tablets / setboxes / TVs / NAS etc without cannibalizing existing sales.

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Boffin rediscovers 1960s attempt to write fiction with computers

Mage
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Stuff like this

Some Hollywood company had a "plot generator" that worked a little like this, without a computer.

I've read about several similar attempts to this since. Most of the output is useless, but some variations can be used by a real writer to develop a real story.

The number of plausible variations output is more related to the amount of input than any cleverness in the program. In this case the point is not the "output" but the achievement of getting it to work at all.

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New York Police scrap 36,000 Windows smartphones

Mage
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iPhone?

Really.

Sigh.

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Boffins bust AI with corrupted training data

Mage
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The Emperor's Clothes

So called AI and Machine learning is just a fancy algorithm and big database. If it's too expensive to completely curate the data input, or you don't bother, you get the classic problem EVERY computer application with a database suffers. People trust the output but never check the inputs well enough. The incorrect data input can be OCR error, mistyped, image in wrong input queue/metadata or deliberate.

The problem isn't the Singularity, or AI takeover or AI weapons. The problems are the same as ever, lack of input validation, blind trust of results and marketing hype. There is no AI, we still have no idea what biological intelligence is nor consciousness, self awareness etc. We design tests and argue how valid they are.

Ponder on why "double entry" book-keeping was created or why well designed database systems with account codes have check characters / digits (Credit cards, IBAN etc, it's not for security but to catch most data entry mistakes).

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Gather round, kids, and let's try to understand the science of 3D NAND

Mage
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Calibre

Save web page complete (in Reader view, various browsers), or copy / paste body to Word/LibreOffice Writer.

Make saved HTML, doc, Odt etc into epub/mobi for eReader or eReader app using Calibre.

PDFs are ghastly things, designed really to see paper documents on screen.

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Is it possible to control Amazon Alexa, Google Now using inaudible commands? Absolutely

Mage
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Re: low-pass filter on the microphone.

Not so simple if it's the electret capsule. A little easier if it's the FET (need new design of capsule as FET is internal). If it's simply aliasing type "mixing" (Fin - Fsample), then you need a pretty good low pass filter as a simple R C will be defeated by simply more volume. OTOH, if it's aliasing, then sampling at 96kHz and DSP filter is very effective as it's very hard to generate above 48kHz (the nyquist frequency for 96kHz).

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Nasty firmware update butchers Samsung smart TVs so bad, they have to be repaired

Mage
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Unhappy

Re: still works with Netflix and YouTube

Security & Privacy.

Only use the TV as a monitor for online content. Connect via HDMI on phone, tablet or Laptop.

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Forget trigonometry, 'cos Babylonians did it better 3,700 years ago – by counting in base 60!

Mage
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Pint

Gilgamesh sued Apple

Well, Gilgamesh isn't Babylonian and he's been dead over 70 years.

Have a beer.

"If Gilgamesh existed, he probably was a king who reigned sometime between 2800 and 2500 BC. The Sumerian King List claims that Gilgamesh ruled the city of Uruk for 126 years."

He probably did exist, but unlikely to have been as described in the Epic Sumerian/Akkadian poem developed over 100s of years (In that sense a bit like King Arthur, though evidence for him is more tenuous and most of what you read/see is stuff made up 100s of years after original Welsh legends.)

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So what's in the new Windows Insider build? Bug fixes, an AR goof-around, and a font

Mage
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Unhappy

Re: And when ?

The last update I did switched on one Sharing to MS setting. I do check each time.

Can I block "fall Creator's Update release" and only have security and bug fixes? Especially fix the stupid ultraflat GUI that has silly phone elements and inconsistent settings locations.

I don't care about the AR or an extra font. I've far too many already! Mostly I look for fonts similar to old printed ones to recreate old instructions, posters, labels etc. on stuff from 1920s to 1980s. I don't care to have a new font for the screen or for printed books I publish. If I do, there are plenty decent fonts out there.

Though my main laptop only runs Linux Mint + Mate and I have an Android Tablet, I do still mind a Win 10 Tablet / Keyboard and a Win 10 desktop for a games player.

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Oldest flying 747 finally grounded, 47 years after first flight

Mage
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Re: if Apple made a plane?

Glued on engines and buy a new plane if an engine needs replaced?

Need iTunes to load flight data?

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ASUS smoking hashes with 19-GPU, 24,000-core motherboard

Mage
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Headmaster

"mining" cryptocurrency

So the Cryptocurrencies replace central banks and governments with anonymous rich people to control increase of money supply.

How is this a good idea?

Also speculators "hoarding" cryptocurrency causes same problem as cash under the mattress or in Offshore accounts to avoid tax. It reduces the amount of money in circulation available to buy & sell stuff.

Very simplistic explanations. Very introductory texts on Economics explain it better.

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Germans force Microsoft to scrap future pushy Windows 10 upgrades

Mage
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Re: "Optional"?

Add WiFi adaptor to desktop and set to metered?

Where is the setting to set ethernet connection to metered?

Tricky to find where to turn back on driver installs when "metered" applied.

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Mage
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Facepalm

Homegroup?

Turn off that nonsense, disable all the services and setup networking to use DHCP from your router or a NAS box.

If you have no NAS, Server or storage on the Router's USB port, then only enable file & Print sharing and Server Service on ONE PC/Laptop that is on when any other is on.

Peer to Peer with every PC sharing was stupid on WFWG in 1990s. Homegroup is stupid extension of this idea.

Also make sure uPnP is disabled on any Router. I disable it, the associated SSSD and all the IOT services too as those are infection vectors. A gadget can automatically install over network. Worse than Autorun, an evil convenience that should never have been added to Windows. The Amiga showed why before Win 95 had it.

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Mozilla ponders making telemetry opt-out, 'cos hardly anyone opted in

Mage
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Devil

Re: I think that's a good idea

Why?

Exactly what does the loss of privacy improve?

How secure will the collected data be?

How is it used?

If someone needs to send me a parcel they can "collect" my address. They ought not to keep it.

If someone is getting paid they can "collect" my credit card info. They ought not to keep it. Many illegally store the extra digits on reverse. On Amazon I make a trivial but valid address change so at least any purchase needs the credit card re-entered (there are loads of ways for people to access your Amazon account, potentially. I set limit for eBook reader very low).

Far too much is collected by Android, Chrome OS, Chrome Browser, MS Browers, Win10 etc. The motivation is not better software.

Also GUI quality and important functionality on many major packages (Apple, Google, Microsoft, Mozilla) is going down, so is telemetry replacing proper design, proper user testing and proper research of users directly? Telemetry tells you nothing about WHY the user did something or how important the hardly used features are.

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Mage
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Unhappy

idea of opt-out telemetry

I suspect that's illegal in many jurisdictions. If not it should be. Why on every front are they trying to copy the worst ideas of the competitors. I've had to install Firefox ESR 52.x on all linux and windows computers. We'll have to change to something else when that ends, unless Mozilla reforms.

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Pssst... wanna participate in a Google DeepMind AI pilot? Be careful

Mage
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Re: DeepMind should not be shunned because of its owner

They are happy to stop slurping WiFi via street view. Look at Android, Chrome Browser and Chrome book adoption. Parasites.

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Mage
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Re: DeepMind should not be shunned because of its owner

a) They are totally untrustworthy.

b) They refuse to be regulated, especially outside USA.

c) Who says this app actually works and how was it developed?

d) The company has no track record in Medical applications.

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Did ROPEMAKER just unravel email security? Nah, it's likely a feature

Mage
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Coffee/keyboard

Remote Content

1) Unless you are using Webmail, when it's received in your inbox no-one can change it.

UNLESS

2) You are daft enough to allow remote content, in which case you are pretty doomed anyway.

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Uh oh, scientists know how those diamonds got in Uranus, and they're telling everyone!

Mage
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Why do they need a factory?

They make small industrial ones to coat tools.

They make large flawless large ones (including small windows) for specialist applications. Superior heat conducting material that's an electrical insulat. Unlike other allotropes of carbon, it's an electrical insulator if pure. Beryllium Oxide is next best. Mica and certain elastomers have been used, but very inferior to Beryllium Oxide.

Diamonds used in Jewellery vary in impurities / flaws.

De Beer's Element Six has a factory in Shannon, Ireland.

https://www.shannonchamber.ie/membership/members/manufacturing/element-six/

http://www.e6.com/en/Home/About+us/Company+profile/

But yes, no existing precious metal or gem company wants a cheap new source of the NATURAL products.

Sapphires as gems are worth most in jewellery if natural. Like diamond, there is synthetic sapphire for industrial use (originally mechanical watch face covers and also jewels in movement).

I don't know if record player stylii are synthetic or natural sapphire (50 hrs) and diamond (about 500 hrs) vs single play steel needles. Autochangers in 1930s first used sapphire as obviously a bamboo, thorn or steel needle would be useless. UK single play 78 only turntables still used steeel needles on some models till 1949. Microgroove 33 1/3 1948 and 45 rpm 1949 could only use sapphire or diamond stylus.

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Who needs 5G? Qualcomm, Ericsson and Verizon hit 1Gbps with LTE gear

Mage
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Devil

Re: 5G is a marketing label only

Yes, 5G is about infrastructural integrations not speed.

Capital Expenditure vs Speed.

Why is geographical coverage poor and peak time speed poor for many users? It's NOTHING to do with technology, as indeed this lab demo (which has been done on other HW, this is PR) shows. The Network operators only install enough so not too many calls dropped and PAYG can be consumed and cherry pick the areas with good ability to sign up many bill pay customers (i.e. not much rural).

The licensing is too weak, enforcement almost none existent. Regulation exists to raise revenue from licences, not benefit consumers.

One physical RAN operator with "beauty comp" licence and USO 100% coverage, minimum peak time speed KPIs and raise revenue from VAT would be far better. Then the operators would be retailers.

"Free" phones on contracts should be banned. That's a hidden cost and reduces choice and competition.

This is shameful PR, in a long line of it since news of first 3G licences.

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Want a medal? Microsoft 7.2% less bad at speech recognition than IBM

Mage
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Re: speaker A is from Glasgow and speaker B is from New Jersey.

Context and engage in conversation is best. Speech recognition / "AI" is poor at context and rubbish at "real" conversation.

It's more brute force using a giant database.

"Kin yer mammy sew?"

Very different meaning in parts of Glasgow. Or it was 40 years ago.

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Boffins blast beats to bury secret sonar in your 'smart' home

Mage
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Re: The simplest ways are best

Especially ones with a parabolic rotating horn.

I made a rotating horn fed by 40kHz transducers. That's a wavelength of 7.5mm. X band radar is about 4x less resolution.

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Science fiction great Brian Aldiss, 92, dies at his Oxford home

Mage
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Alien

Re: The 1920s onwards

Actually the 1780s to 1800. Programmable power looms, then in 1800 we entered the Electrical Age (Steam was well established), due to Volta's battery. Hence Shelly's Frankenstien's Monster 1821 approx (there were revisions). Before the end of 1800s there was telegraph, lead acid batteries, dry cells, fax, voice telephony, radio, cars (Steam, Battery Electric, Petrol and Diesel), typewriters, punch card census analysis (Hollerith = IBM), Gestetner's Rotary Duplicator, photography, cine, phonograph & gramophone, hearing aids using carbon mic/moving iron, amplifier module, torpedoes. HG Wells WOTW "warships" were already obsolete.

Maxwells famous equations only a hair's breadth from relativity than showed speed of light a constant (Einstein credited him) and the Michelson–Morley experiment was performed over the spring and summer of 1887.

The modern novel is mostly an 18th C development. (Jane Austin rather famous now)

Boolean Algebra for computers and the special non-Euclidian geometry need by Einstein for his 2nd Relativity equation.

Improved vacuum pumps and the CRT (UK and Germany).

Though SF can be argued to seriously start with Lucian's True Stories (about 150 AD?) they really took off due to 19th C industrialisation, science, mathematics and tech. Verne's 20,000 leagues was all based on EXISTING tech, he'd been inspired by a model of a French military submarine.

Books were still only for well off people. Most people in 1830s to 1850s saw theatre productions of Frankenstein rather than book. London had many theatres with up to 5,000 people a night.

The whole Victorian pre-Raphelite, neo-pagan, Celtic literature (English translations) and thus Fantasy writing took off in Victorian age, which fed into SF. Dracula (based on the Irish myths & lenann shee more than central Europe, he was Irish), McDonald's Lilith and many otthers without which SF would be rather boring (how much a debt does Hellconia owe to Fantasy?).

Tolkien new all the Victorian stuff, though LOTR is more based on Celtic, Teutonic and Norse myth. & legend.

EE "Doc" Smith in late 1920s "invents" Space Opera (he puts impossible "jokes", he knew science and that Iron is the lowest state were Fusion and Fission end, so the spacecraft powered on Iron is an "in joke").

By the 1980s SF had seriously gone off and is now most is too Transhumanist "religion" and indulgent fantasy (Nano everything that's really just magic, immortality, General AI, resurrection clones and mind transfer to computers, the stuff of the comic end of SF in the 1940s).

I like Aldiss's earlier works.

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Hackers scam half a million from Enigma digital currency investors

Mage
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FAIL

So why use Enigma coins?

They can't even do basic security properly.

Cryptocurrencies seem a great idea for anonymity, sadly when money is involved that seems most useful for criminals buying & selling, money laundering, speculation and scammers.

Are there now so many versions because no-one has solved the problems? Scalability is also a problem for true distributed systems rather than peering and centralised electronic funds transfer such as Swift, IBAN and PayPal.

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Intel stuffs extra cores into latest mobile Series U Core i5 and i7 chips

Mage
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Clock Rate, Batteries and Heat.

"surprised to see clock rate nerfed in comparison with the previous iteration of these mobe chips"

Maybe the batteries where too big or too short run time, or heat was an issue.

At least not crippled to 2G RAM like the 64bit Atoms (all or just most in tablets/netbooks).

Are these for laptops or tablets?

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Qualcomm slurps Uni of Amsterdam AI spinoff Scyfer

Mage
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Devil

Re: "function even when the host is offline"

All of them just have simply input /output on the consumer devices for the big central AI data slurping & privacy theft.

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Mage
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Re: The real reason?

Yes, absolutely. Qualcomm are a species of patent troll. They do produce chips, but as a way to licence their IP and unlike most others they often not only make profit from chip but insist on a percentage of total equipment sale price as "royalty." There is name for that sort of thing.

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Voyager antenna operator: 'I was the first human to see images from Neptune'

Mage
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Pint

Also

It's brilliant what the Voyager people have done. I was reading about retirement of someone in their 80s that worked on it since the start.

"That it remains humanity’s only close encounter with the planet is a testament to the durability of the Voyagers and the outstanding and astounding achievements the missions represent."

Also how little we spend on space exploration compared to weapons, or even pretty rubbish game/film/TV remakes/sequels.

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The sky is blue, water is wet and UK PC shipments are down

Mage
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Coffee/keyboard

Comparisons?

What are PC sales doing in Ireland, Netherlands, France, Denmark, Germany, Poland?

(Let's not compare Greece, Italy, Spain, Portugal, Switzerland, rest of Eastern Europe or Nordic as they are less comparable to UK).

Linux Mint at 17.x was good, Sonia Mint 18.2 with Mate desktop, some changes to defaults is even better. I'm gone from windows for over 8 months now. First used Windows seriously 1991 and Linux seriously from 1998 (servers then). Windows NT since 1994.

Home users are using phones & tablets (Android and some iOS) more than PCs now and can't stand Windows 10. Legacy Business applications is the market that HAS to buy Windows, yet 64bit is less compatible than 32 bit (esp any VB6 that does serial I/O). Windows 10 64 bit seems to be not only insane GUI, inconsistent settings (three main GUIs/places) but least compatibility. If you don't care about compatibility, why use Windows at all? (Windows Phone users and Windows ARM tablet users clued on that with now 0.2% approx. Once MS had 20%+ of PDA/Phones with Windows CE, and 98% PCs because the Desktop was only Desktop orientated and no-one expected the gadgets to run real windows applications, despite the silly copying of Win3.x/Win9x desktops. They should have stuck with Zune like tiles ONLY on phones and small tablets and not poisoned the desktop after Win7.

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Energy firm slapped with £50k fine for making 1.5 million nuisance calls

Mage
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Facepalm

Re: Different planet

Also fine the Board & the senior executives personally. The £50K isn't even a slap on the wrists, and the customer will pay.

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LG schtum over whether Europeans can get the powerhouse phablet V30

Mage
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Coat

Re: A 32-bit DAC for audiophiles...

@Lost all faith...

You have been overdosing on irony tablets. Or is it sarcasm. I must learn the difference.

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Mage
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Re: bigger is best ok?

It was envisaged about 25 years ago or more, that there is less limit on length of a hand-held gizmo than width. A Slide rule is maybe the ultimate (invented 17th C.).

A phone needs to fit in one hand and perhaps be no longer than 50% more than pocket depth (2/3rds in pocket so it won't fall out).

I think that the original LG Chocolate (2006?) was first tablet style phone with long screen. The Nokia Communicator 9100 and 9200 series may have been the earliest smartphone with a very long form factor and very wide "letterbox" format screen, from about 17 years ago. I had both.

So quite logical for a phone. Multiple windows would be good? I think LG did have that years ago.

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Elon Musk among 116 AI types calling on UN to nobble robo-weapons before they go all Skynet

Mage
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Flame

Re: Geneva Convention?

This is publicity seeking fantasy on Musk's part, though I agree we should not have autonomous weapons of any sort.

Cruise Missiles (Many are jet engined drones with rocket motors for launch) are an updated version of the V1 / V2. They are usually manually launched, but use onboard autonomous guidance and targeting. In any case only snipers (and similar) fire at individually selected humans. Rapid fire, machine guns, shells, missiles, torpedoes, mines and bombs are indiscriminate and often used against non-combatants (civilians, medics, wounded soldiers, prisoners, animals etc).

Also Heat seeking surface to air and air to air missiles.

MIRV nuclear ICBMs. Aren't some set to automatically launch if the other side's first strike is detected? They are not anyway aimed at identified individuals.

Mines

Are Drones and loitering "cruise missiles" always manually targeted?

1) It's really got nothing to do with AI

2) The big nations only either ban smaller nations from their weapons or agree to ban weapons that don't actually work too well for them (Chemical & Biological. e.g. in WWI Gas attacks far less effective and more expensive than shelling or machine guns or tanks). Major big power exception is USA using agent orange/defoliants in Vietnam. Current Syrian regime and Saddam Hussain used Chemical weapons to intimidate and kill civilians. They are not very effective against an organised army.

Note: The WWII German V weapons killed about 2,000 enemy civilians and hardly any allied soldiers. About 20,000 of their own slave and other workers died making them. If they had made aircraft and U-boats it would have been more effective. Churchill turned tide of Battle of Britain by war crime of targeting German Civilian areas / Cities. Germans then switched from bombing aerodromes to UK cities (and Dublin twice, one accident, once because Fire Engines sent to help in Belfast). Hitler then ordered development of V weapons (Vengeance). Churchill certainly understood Hitler's psychology.

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Russia's answer to Buckminster Fuller has a buttload of CGI and he's not afraid to use it

Mage
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Motorway median

Sadly the middle pillar of every motorway bridge blocks them here. Also adding extra lanes or cash saving means some newer ones have wire cable dividers (AKA Cheese Cutters). Don't some places in USA use a concrete wall divider.

Maybe (like Musk?) is an SF fan and found he has a talent for CAD and CGI but not so much for writing. I think Musk pays other people to make the pictures.

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Celeb-backed music gambit rebrands as 'Roxi', prays for IPO

Mage
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Baffled.

Why does a digital music service need more than an app on a phone? Even my ancient E65 had a big enough screen for music browsing on storage or Internet.

But then I can't quite see the value of a "Gem" or "Chromecast". If I need a big screen, the phone, laptop can connect via HDMI.

One Tablet needs some sort of wireless gizmo because it's a stupid one, the other can use HDMI.

You can even buy an MP3 player the size of that remote!

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How to build your own DIY makeshift levitation machine at home

Mage
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Re: so that's what the 3D printer is for!

Indeed, I see nothing that needs a 3D printer or a CPU.

Maybe the square waves are complicated?

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Batteries that don't burn at the drop of a Galaxy Note 7? We're listening

Mage
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Re: half the size and double the number of cells to increase output?

Can't you just half the size and double the number of cells to increase output?

NO!

It does double the terminal voltage. However maximum current draw is slightly less than half and capacity is slightly less.

"Slightly less"? Due to extra packaging, terminals, monitoring and wiring compared to a single or half as many cells. This why phones use one cell. The reason for multiple cells in laptops is more complex. Large tablets may use two cells because of the need to be thin which probably sets an upper limit on cell size/capacity.

Current draw is limited by internal resistance, related to electrode area and chemistry.

Capacity is set by chemistry and cell volume (= total volume of multiple cell battery)

Voltage is set by chemistry and number of cells.

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Mage
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Boffin

Re: The inventor of Li-ion batteries already has the replacement ready

I think another problem is that Zinc Air cells self discharge?

The ones used in hearing aids (buttons) and electric fencers (6 off Flag sized cells) have seals that you peel off to put them into service. I never heard of rechargeable versions before, but actually Carbon - Zinc have a very limited recharge (and a very small trickle reduces self discharge) and Alkaline cells can be recharged quite a lot if not discharged more than a third.

The internal resistance of Zinc Air is high compared to Zinc Carbon, which is far worse than Alkaline, which is far worse than NiCd / NiMH / Lithium rechargeable.

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The future of Python: Concurrency devoured, Node.js next on menu

Mage
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Unhappy

Re: Bah!

Did we abandon real computer science in the late 80s / early 90s in favour of "languages", "libraries" and "frameworks"?

Have we abandoned compile time validation in favour of run time testing?

Is discussing merits of Javascript vs python 2 vs python 3 missing the bigger picture?

Async, threads, co-routines, mutex, signals, processes are all tools for design of systems with concurrency. Sometimes co-operative multitasking, pre-emptive or dataflow design is best approach. What works for user space on a desktop GUI may not be appropriate for a device driver or a web server with an SQL back end.

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