* Posts by JeffyPoooh

1423 posts • joined 28 Jun 2013

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Google's Cardboard cutout VR headgear given away GRATIS by OnePlus ... er, sells out

JeffyPoooh
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FREE plus $5 shipping

As opposed to under $3 with free shipping.

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Kobo Glo HD vs Amazon Kindle Paperwhite: Which one's best?

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Re: Why buy a dedicated e-Reader ?

"...low price point are enough to make you want to get one..."

...of each.

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It's all Uber! France ends its love affair with ride-sharing app

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Re: Does Uber have something that...

"...can't be duplicated by someone else?"

A bit like BitCoin in that regard.

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Reg hack survives world's longest commercial flight

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Polar Routes

The first time we took a polar route from Toronto to Hong Kong, our flight veered left and we missed the North Pole by nearly 400 miles. Damn!

The next time, our flight veered just slightly to the right, and we were well inside 200 miles. Therefore within direct Line of Sight to the North Pole!! Yay!!

Conclusion: There's no giant 'North Pole' pole sticking up through the clouds. I've confirmed this personally.

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JeffyPoooh
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"sixteen hours aloft"

I did that duration decades ago.

Chicago to Hong Kong, scheduled for 15h 45m. And I recall we were a bit late arriving.

No sweat these days. Bring a laptop and some of your own movies. Noise cancelling headphones. Easy.

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Will rising CO2 damage the world's oceans? NOT SO MUCH – new boffinry

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Re: Not news?

There was a PBS 'Nova' show on this topic recently. Inherently a ~75% trustworthy source.

The issue is that the acidity somehow removes calcium (?) from the water, so that those creatures that require it to form their shells (including some crunchy plankton) are in difficulty.

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"...absorbing solar energy (and thus removing heat from the sea)."

Hmmmmm....

I suppose that the fraction of solar energy that they convert to other forms is temporarily stored, but only until somebody eats them and then swims away.

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Ford recalls 433,000 cars: Software bug breaks engine off-switch

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Renault

Countries that allow their workforce to enjoy a glass or three of wine at lunch should not be permitted to write software.

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Boffins 3D-print ROBOT SEAHORSE, then BATTER it with rubber mallets

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"3D printed ... parts"

"3D printed seahorse parts".

As opposed to "3D printed seahorses" as would be the more typical headline.

Thank you.

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BOFFIN: Will I soon be able to CLONE a MAMMOTH? YES. Should I? NO

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As it turns out...

They have a taste for human flesh, and they can run a lot faster than we thought. Not to mention, they're bulletproof.

Our ancestors spent thousands of years living in fear, before finally killing the last of these ferocious beasts.

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Hold my vodka, comrade – I got this: Russians blast supplies to the ISS

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Vodka

They're so used to tipping over, that it's perfectly natural to them to deliver the rocket in a recumbent position, stand it up, slap its face, and tell it to get back to work.

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Oil & gas? Pah. We’ve got a MASSIVE 3D printer, beams Dubai

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Re: "3D Printed" is most often obvious nonsense...

I don't mind the marketing types lying, that's their job. The media, especially the tech media, should be quoting the liars and then mocking them.

A plastic bit in a thing is not the thing itself.

The vast majority of "3D printed" things are actually just things with some 3D printed subassemblies.

Or perhaps an empty shell that still requires the other 80% or more of the usual finishing work to finish it to finally become what it is supposed to be.

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Re: "3D Printed" is most often obvious nonsense...

@Mark 85...

This -> REBAR

It's not a "3D printed" building if the only change is that they've replaced the guy manhandling the concrete pump nozzle with a pair of stepper motors.

Concrete buildings need REBAR.

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Re: First??

"... a 3D printed 3D printer..."

I actually had this debate with some commentard. He claimed that he 'did' in fact have a '3D printed' 3D printer.

Further discussion revealed the duh-obvious truth. The gadget had some plastic bits that were 3D printed at about 100 times the price of injection molding. The rest of the 3D printer kit (99.9%) was a bunch of metal and electronics ordered off ebay for about $1000.

Pure hype that is demonstrably damaging weak minds. Read some of the breathless commentards with their naive wishful beliefs that "3D Printing will replace all traditional manufacturing in 'n' years"; where 'n' is often a single digit number of years.

The media needs to mock such hype.

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JeffyPoooh
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"3D Printed" is most often obvious nonsense...

One can almost see how they'd 'print' the walls, one layer upon the next. They might have to slow down and manually insert the lintels over the door and window openings, but one could forgive that minor detail.

But when they get to the very first ceiling, squirting concrete into empty space in a gravitational field will result in it accelerating down at approximately 9.8m/s^2. Splat. Does the printer emit a space filling material, maybe sand, to fill the voids, so that the next layer of ceiling is supported? So the design has to support 1300 lbs of sand per square foot on each level?

Also, their printer's nozzle will need to extrude rebar as well as concrete. Especially if it needs to support a floor full of sand. Not to mention conduit for later installing cables and wires. And electrical boxes. Do the printer extrude glass and wood, with precision hinges? Is it a building, or a shell?

"3D printed" = B.S. hype

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JeffyPoooh
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Re: First??

"... that everything in the building is 3D printed as well."

You're not serious, I hope.

The media, including the old El Reg, is constantly guilty of using the noun for the 'next higher assembly' (or many levels up) after the adjective '3D printed'.

Even the BBC just the other day referred to a "3D printed car", when it was just some brackets 'nodes' holding together the tubing that were reportedly 3D printed.

You need to do better.

Quote the PR Flak misusing the language, and then do your job, mock them.

Thank you. Cheers.

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Re: printed layer-by-layer ... then put together at a site

The adjective "3D-Printed" is usually preceding a noun that represents something that clearly wasn't actually 3D-Printed.

It's the idiotic B.S. hype of the entire decade.

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Goodbye Vulcan: Blighty's nuclear bomber retires for the last time

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Re: Tour @Cosford

Robigus, "...never really understood what the American thing was about."

Reverse ITAR.

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Microsoft: This Windows 10 build has 'NO significant known issues'

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Re: Hallelujah - File Explorer's file path limit is not 256 any more !

"...give a seperate folder to every atom in the universe..."

By the time one has organized a large organization and structured the projects and structured the folders and subfolders within the project and start pasting in files with real world filenames, BAM! Too long.

It's annoying.

One trick is to have short-cuts back-up the tree structure. Deep down in the tips of the branches, a short-cut back up to near the top of the project folder, e.g. ...Project\Shorty\...

It's a trick that works fairly well.

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BBC veterans require skilled hands to massage their innards

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Re: Parts

"The 6502 was designed to be as cheap as possible..."

Fanboy flames wars circa early 1980s: "6809 RULES, 6502 DROOLS!"

More-or-less pre-Internet, so BBSs or the Newsgroups.

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Get READY: Scientists set to make TIME STAND STILL tonight

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Re: why?

"...literally trillions of edge cases that rarely get tested in systems we rely for our modern world to function?"

Disagree. This is good practice for the spec writers, system designers and coder drones of the world.

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Re: ...accurate for a period of 158 million years...

The UK hasn't even made up its mind about prime meridians. Or maybe it has, several times. Or had its mind made up for it by others.

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JeffyPoooh
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Re: Fortunately, We Know the Title Was Only a Joke

JS suggested "...adjusting the length of the second..."

Hmmm. Simply change the '9,192,631,770 cycles of the caesium 133 etc.' to a different number. Perhaps 9,192,631,867 or thereabouts to give an extra second every three years.

Of course, we'd have to update some PROMs in the time standards, ...not to mention adjust the value of all sorts of derived constants, recalibrate much of the test equipment and electronics on Earth, amend all the text books, etc.

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Re: Time enough at last

No, I don't like that picture.

If you look closely, you'll see that the 4-o'clock position is marked with what appears to be "IV". But the correct (in the sense of traditional) indicator for 4-o'clock on Roman Numeral clock faces is, perhaps surprisingly to some, "IIII".

So I don't like that picture.

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Boffins set networking record with marathon 12,000 km fiber data run

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Re: So....how was it really tested?

"several" km .NE. "12,000" km

The actual cables to cross an ocean tend to completely fill-up a large ship.

We've established that they'd have to be using HV DC powered amplifiers, because the erbium doped versions would be out of reach of their pumping lasers due to the same loss issue. HV DC powered amplifiers require a fairly thick cable to carry the HV DC.

12,000 km is 12,000,000 m. TWELVE MILLION METERS of thick cable.

If they just installed the amplifiers between the reels of thin fiber, and then fed them with HV DC using short cables, then they're cheating w.r.t. the "12,000 km: claim.

THEREFORE - I call BS on this.

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JeffyPoooh
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Re: 12,000 km at, for example, 0.4 dB per km

"48000dB"

OMG.

If you understand dBs, then your fingers should have rebelled at even typing that in. The simple phrase "...thousand dB..." should cause a gut reaction like being punched.

As it was, I had to copy-and-paste your erroneous value with my eyes closed.

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JeffyPoooh
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Re: So....how was it really tested?

I'd put an e-beer up as a bet that they didn't actually have 12,000 km of fiber.

I'd bet that they simulated it, and neglected the small matter of the approximately 4800 dB of loss.

Even if they had erbium doped optical amplifiers, then how did they pre-charge the doped sections with the other erbium pumping laser? Even from both ends, it's still 2400 dB (is 10^240) for the erbium pumping laser.

Inquiring minds want to know. Is this yet another university BS press release? They're so common these days.

edit. Or are they using the HV DC powered electronic amplifiers? Are they practical over this distance? Industry was trying to get away from them.

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JeffyPoooh
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Re: 12,000 km at, for example, 0.4 dB per km

"4800dB would possibly vaporize the planet..."

I dug out my 500 digit calculator.

4800 dB above a single quantum of energy would most assuredly vaporize the entire Universe a zillion zillion zillion... etc. ... times over. You'd only be safe if you hid behind some lossy cable.

Apparently they're using amplifiers, of the erbium doped variety?

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JeffyPoooh
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Re: 12,000 km at, for example, 0.4 dB per km

El Reg's article makes no mention of "amplifiers". What, are you following links to external sources? Geesh! ;-)

(PS. Thank you.)

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JeffyPoooh
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12,000 km at, for example, 0.4 dB per km

Dispersion sorted. Great.

What about loss? 12,000 km x 0.4 dB/km is 4800 dB.

Anyone else here understand dBs enough to laugh with me? I'm pretty sure that the ratio of 'The Big Bang' itself to a tiny Quantum of energy is significantly less than 4800 dB. Problem is my calculator isn't wide enough, by miles.

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Hi-res audio folk to introduce new rules and weed out impure noises

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"...(why should your tweeters maintain linearity at that kind of frequency?)..."

Have you tried those dipole ribbon tweeters? Lovely and smooth.

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Re: Same story as with 4k video displays

When I finally bought our first 1080p TV, during the initial 'critical viewing' phase that goes with a newly purchased TV, I noticed quite a bit of diffraction on some of the high contrast scenes. It was very annoying, and it took me a few days to find the cause.

After I trimmed my eyelashes a bit, the picture quality snapped into sharp, diffraction-free focus.

There's a lesson in there somewhere.

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JeffyPoooh
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Re: CD "Quality"

NB: "...get as close to the original as you can."

I went to a classical music concert once. The brass section, during breaks, would turn their instruments over to drain the spittle out onto the stage floor. Pools of spittle glistening under the lights. It was disgusting.

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JeffyPoooh
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Re: for dogs only

Hey Nonny Nonny Mouse offered: "It's basic theory (and practice), if you mix two fundamental frequencies together you will have an output that contains the two fundamentals *and* the additive and the subtractive frequencies of both."

Such mixing *requires* a non-linearity.

In radio receivers, this function is called a "mixer stage". In the preceding RF low noise amplifier stage, the designer works long hours to ensure that the LNA is as linear as possible. Presumably the audio circuit designers are equally careful.

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JeffyPoooh
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@John Geek "Khz Khz Khz"

We were doing good up until your post. Only one (just 1 !) typo in Neil's post, but obviously a typo because he had the rest correct. Every other post had 100% accuracy in the correct case of "kHz" and "dB". It was a joy.

And then you came along... THREE "Khz"!

Sigh.

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KRAKKOOM! SpaceX Falcon supply mission to ISS EXPLODES minutes after launch

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Re: lightning? bah.

Khaptain, "...at least once a year."

At least? You make it sound like it's the law.

Do they have to drag out any recalcitrant aircraft near the end of December and connect them to kites?

;-)

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Re: It was the cabbages, I say!

D.A.M. asked...

Lightning diverting towers and cables, aren't they?

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JeffyPoooh
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Re: It was the cabbages, I say!

Vulch "Lightning..."

Real men would simply "Set SCE to Aux" and then carry on.

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Re: Motoring along...

"... an over-pressure event in the second stage oxygen tank."

Probably somebody stirring the damn cryo tanks again!!!

SWIGERT!!!!!!

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Ah, it *is* rocket science.

Too bad. Try again.

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Tesla says Model 3 is still on schedule, despite being delayed again

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Re: Virtually no one...

"...Musk ..he's got some misses along the way."

It's almost as if one can sometimes foresee the future. Ka-boom.

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GM's cheaper-than-Tesla 'leccy car tested at batt-powered data centre

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Re: Ugly Car

Apparently Tesla is at least a year *behind* GM in the econo-e-car segment.

Remember that the Tesla econobox e-car was supposed to have been next. But Musk had to switch plans to the SUV due to financial issues.. He was quoted explaining all this about a year ago. But some fan boys have selectively forgotten this switch-a-roo.

In any case, they can fiddle the cars all they want. It's the batteries that need some 'magic happens here' inserted into the master project plan.

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JeffyPoooh
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Re: Don't believe it

There are 168,000 gas stations in the USA.

Filling a gas tank takes only a few minutes, battery much longer.

A gas tank can take you about twice as far as a battery.

Claim about "1500" is therefore irrational nonsense. But that's about par for the course with the nonsense spewing e-car fan boys.

That out of the way, all they really need to do is make the batteries about twice as good in every parameter.

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Re: What a horrible paint job

It's so the U-Boats have a more difficult time identifying their target.

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Subaru Outback Lineartronic: The thinking person’s 4x4

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Re: Questions

Can it get away from baddies driving a Corvette in a shopping mall?

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Re: Questions

IMG suggested a Jeep.

No way, people might see you in it.

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JeffyPoooh
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Some places need AWD for winter conditions

Not for off-roading, but just for getting to work over roads that have a foot of fresh snow covering several inches of gloss ice, on hills. Mercedes 4Matic combined with Nokian studded tires works for me.

Subarus are quite nice, especially considering they're now part of the 'transportation white goods' conglomerate. They're to be congratulated for maintaining an element of 'interestingness', and knowing how to install an exhaust system without it dangling below the chassis as is the rule with their parent.

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Re: I have An Audi...

Stop tailgating! Geesh!!

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Who wants a classic ThinkPad with whizzy new hardware? Lenovo would just love to know

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I like ThinkPads

I bought a used ThinkPad of the Windows 7 era from an on-line seller. It was very nice. So I went back and bought another, and another, and another, and another.

The kidiots each have one. With the slightly more powerful video chip, they're quite happy to use them for Steam games. Obviously not state of the art gaming platforms, but the kidiots are VERY happy with them so who am I to argue?

I've got three. Two for different purposes (Entertainment, Radio/Comms) and a spare.

Thank you to the businesses that pay over $2,000 for loaded ThinkPads and then make them available to me through the 2nd hand market for about $250 only three years later. Very generous of them. Thank you so much. Please buy lots of these new ones for your staff.

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Bitcoin, schmitcoin. Let's play piggyback on the blockchain

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Re: Damn users eh!

"15Mb"

"600 Mb" "30Mb"

Why are you guys measuring file sizes in mega bits?

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