* Posts by Gideon 1

141 posts • joined 3 Jul 2009

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Rambus decides to enter the semiconductor chip manufacturing game

Gideon 1

Re: Manufacturing ain't in this company's DNA.

Yeah, their royalty rates fell after smack-down by the European Commission:

http://ec.europa.eu/competition/elojade/isef/case_details.cfm?proc_code=1_38636

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Power Bar: EE was warned of safety risk BEFORE user was burned in explosion

Gideon 1

Re: Hydrogen

Lithium cells are at risk of thermal runaway due to deposition of lithium metal within the cell, which can be caused by overheating, overcharge, over-discharge, charging below 0 Celsius, or mechanical damage. The venting gas is a mixture of Hydrogen and CO2, and smaller amounts of CO, CH4, C2H4, and C2H6 due to high temperature reactions of the cell chemicals. Hydrogen ignites when it reaches sufficient temperature in the presence of oxygen, but that temperature is caused by the thermal runaway within the cell.

http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f

To meet EC regulations, the cells must have electronic protection against charging below 0 Celsius or too high a temperature, overcharging, and over-discharging. Cells in series must have cell balancing circuitry. Has anyone done a tear-down and verified that the EE power bars have this protection circuitry?

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Wait, what? TrueCrypt 'decrypted' by FBI to nail doc-stealing sysadmin

Gideon 1

CRIB

The FBI will have known which documents he had access to, giving them very large cribs to attack the ciphers, without even considering the password. They were looking for known knowns, not known unknowns or unknown knowns.

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Microsoft open-sources Sora software-defined radio

Gideon 1

Re: I want a kilowatt output, 8-bit register only allows 255 watts. Help.

You missed the point, which is cheaper hardware. A good example is Realtek ethernet MACs, which are as cheap and simple as they could make them, offloading most of the functionality to the driver software. The phy will be next, because it typically has a dedicated mask programmed DSP, but as CPUs get DSP like instruction sets the signal processing can be done there instead. The same cost reduction could be applied to computer radio interfaces too.

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Intel TOCK BLOCK: 10nm Cannonlake delayed to 2017, bonus 14nm Kaby Lake to '16

Gideon 1

Re: Intel has rivals?

Yeah, the smartphones.

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Boffins demo 'memcomputer', plot von Neumann's retirement

Gideon 1

Optimal memory != optimal processor

Silicon baking processes are optimised for what they are trying to make. Microcontrollers integrate processor, ram, and flash memory all on the same silicon by compromising the foundry process to get all the parts to work, but they all end up sub-optimal which is why microcontrollers have lower performance and smaller memories than their dedicated counterparts.

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Gideon 1

“We show an experimental demonstration of an actual memcomputing architecture that solves the NP-complete version of the subset sum problem in only one step and is composed of a number of memprocessors that scales linearly with the size of the problem”

Yeah, but the interconnect between all these memprocessors rises exponentially. Similar to an FPGA, you have to program all that interconnect too, and that takes a long time, and can only solve one problem with each programming.

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Mastercard facial recog-ware will unlock your money using SELFIES

Gideon 1

Remember that this is in the US, where they are only just starting to roll out chip and pin.

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Apple CORED: Boffins reveal password-killer 0-days for iOS and OS X

Gideon 1

Re: But shirley...

"So all debuggers have to run with root privs?"

No, the debugger can run the app as a child process, retaining the ability to peek into its innards.

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Reddit joins the HTTPS-only stampede

Gideon 1

"Reddit jons the HTTPS-only stampede"

Is that joins or jons?

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Zionists stole my SHOE, claims Muslim campaigner

Gideon 1

Re: A few pointers

Before making accusations of ignorance, may I suggest that you first research the Koran, the Hadiths, and the culture. There are exhortations of the 'kill everyone who doesn't agree with them' type in there, thankfully most submitters to the religion don't do that these days. Along with the positives, there is also a rich history of jihad, subjugation of women and minorities, and other things that Western culture consider to be negative.

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Gideon 1

Re: A few pointers

" It's a dumb narrative as there's 1.6 billion muslims in the world from every walk of life and one thing that I certainly do agree with this guy on is the danger and idiocy of Islamophobia."

That's an implied threat against anyone who questions that religion. It is a regression to pre-Enlightenment attitudes of religious repression of thought and speech.

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Gideon 1

C'mon, any fool knows that the real Mossad calling card is a shekel on the pillow... especially intimidating if you wake up to find it on your pillow.

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Virgin Galactic will get into space 'within 18 months to two years'

Gideon 1

Re: Being picky...

"In some cars you're correct, but for the majority of cars on the road there isn't. I drive a Peugeot 107..."

Synchromesh on reverse is unusual, Peugeot even have a patent on it: http://www.google.co.uk/patents/US4640141

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Gideon 1

Re: Being picky...

In most manual gearbox cars the only thing preventing you inadvertently selecting reverse gear is some kind of extra selection device, e.g. a pull-up collar on the gear stick, or a push down mechanism on the stick. If you really really want to select reverse whilst travelling forward at speed, you can.

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Your servers are underwater? Chill OUT, baby – liquid's cool

Gideon 1

Re: Have you tested this theory?

Capacitors have more of a problem with low pressures, especially types that do not have a hard case, e.g. resin dipped tantalum. The airworthiness directives are a good guide.

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Easy ... easy ... Aw CRAP! SpaceX rocket ALMOST lands on ocean hoverbase

Gideon 1

Re: Needs One of These

Many of the good ideas have already been invented. They could make the entire deck of the barge out of that grab grill, the landing wouldn't need to be so precise, and the rocket exhaust would go straight through, reducing the landing flare (http://en.wikipedia.org/wiki/Landing_flare) instability.

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Everything's code, 'zero tolerance for assholes': Yup, it's ChefConf

Gideon 1

Ah okay, you'd have kicked out Steve Jobs?

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Ex-cop: Holborn fireball comms outage cover for £200m bling heist gang

Gideon 1

Early signs of dementia include paranoia. Maybe time to go see your doctor?

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Marvell: We don't want to pay this $1.5bn patent bill because, cripes, it's way too much

Gideon 1

The main issue here is that Carnegie-Mellon took so long to file suit. If Marvell had been challenged earlier they could have raised their selling price for the chip by the 50c patent license fee. Carnegie-Mellon should be penalised for taking so long to take action against Marvell.

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Take a deep breath, Apple: Europe snaps on gloves for vigorous iTunes stream pat-down

Gideon 1

Re: Not a surprise

> In any case, all this article is about is the European Commission asking some questions to see if a investigation is required into a service Apple hasn't even launched yet.

This is the European Commission asking some questions to see if some illegal contracts have been signed between Apple and the music industry.

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Free Windows 10 could mean the END for Microsoft and the PC biz

Gideon 1

Re: Stop and think a bit, please...

"I suggest you read the upgrade EULA before clicking through, it's possible to give away your current rights even if MS cant unilaterally remove them."

EULA != the law, consumer rights trump EULAs

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TERROR in SPACE: ISS 'Nauts end panic by switching computer off and on again

Gideon 1

Re: What did you expect?

There are several RTOSs on the ISS, including eCOS and QNX. RTEMS is also frequently used in space missions.

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World's largest ship swallows 900 MEGATINS of baked beans

Gideon 1
FAIL

900 meellion cans of beans at 415g each would weigh 373500 tonnes, while the ship has a gross tonnage of 186000. It would sink!

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Soundbites: News in brief from the Wi-Fi audiophile files

Gideon 1

"96Khz or 192khz? - 44.1 Khz is a higher 'resolution' already than my (and your) ears can hear. At 96khz and with the right equipment you are either tormening your dog or delighting him with bits of your music that you will never hear."

Higher sample rates improve the phase accuracy of high frequencies, not an issue for mono but in stereo it helps you pick up the direction a sound is coming from.

Higher sample rates also make the anti-aliasing filters much easier to design, and reduces their effects on the audio you can hear.

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What the BLOCK? Microsoft to gobble Minecraft-maker 'for $2bn'

Gideon 1

My kid has already got bored of Minecraft and moved on to other games, like Roblox which allows greater user game creation possibilities. If this the sale goes ahead Notch may have got his timing just right.

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Data entry REAR-END SNAFU: Weighty ballsup leads to plane take-off flap

Gideon 1

Re: Weigh the bloody thing

Much simpler: A strain gauge (resistor printed on a piece of sticky film, responds to stretch or compression) on the landing gear strut will measure its load.

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Gamma's not a goner! UK ISP sorts out major outage

Gideon 1

Not Gamma

We're on BT business broadband and got taken offline by the fault, so either it was BTs fault or BT route their broadband over Gammas network.

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Boffins brew TCP tuned to perform on lossy links like Wi-Fi networks

Gideon 1
Go

Re: Fixing at the wrong layer

Retries are bad, especially if the round trip time is long. Better is to increase the forward error correction to compensate for the radio link quality as it adds a much smaller overhead to both the local radio channel and the long distance fibre links, keeping the retry rates down. WiFi needs more of the redundancy coding goodness developed for LTE.

These studies often only consider their own data throughput, selfishly grabbing bandwidth at the expense of other users sharing the same links. TCP/IP was carefully designed to allow efficient sharing of limited bandwidth, and that is where many of these proposals fail.

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Gideon 1

Fixing at the wrong layer

It's the radio transport layer that needs the forward error correction applied when the signal gets ropey, sort it locally where there is information about signal strengths and error rates rather than have the TCP stack compensate for a problematic link that could be thousands of miles away.

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Gideon 1

Re: @Suricou Raven (was: @ Brian Scott (was: Broadcast?)_

UDP broadcast is used routinely even if you don't like it, e.g. by printers and printer drivers for auto discovery and toner low messages.

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Want to see at night? Here comes the infrared CONTACT LENS

Gideon 1

Micro-bolometer LWIR sensors don't need cooling, they operate at room temperature.

Also, if your contact lens were the size of goggles...

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Hands up if you have one good reason to port enterprise apps to ARM

Gideon 1
FAIL

Re: Hand is up

ARM can do both endians, but it is usually run in little endian mode just like x86.

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Ancient carving of 'first human-built holy place' = Primitive Vulture Central

Gideon 1

Erich Lester Haines von Daniken

...will be saying he's just visiting from outer space next.

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Google search biz offer BINNED by EU competition chief

Gideon 1

Re: vertical search?

"this was about Google's control of the search market meaning they can decide whether any web-based business goes bankrupt or not, and that they may pull these levers with impunity."

We've had experience of Google doing this. We appeared at positions in search results appropriate to our website and company size until Google noticed us and rang up saying they could 'optimize' our spend with them. When we said we were ok, thank you, we then mysteriously dropped right down the search results, and our adwords per-click minimum bid prices became very expensive even though nobody else seemed to be bidding for them.

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Picture this: Data-wrangling boffins say they have made JPEGs OBSOLETE

Gideon 1

Jpeg2000 never caught on either

It did, except it is called REDraw.

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Why Bletchley Park could never happen today

Gideon 1

Re: It's all about who you employ

Mossad agents have sometimes pretended to be from other nations security services.

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Gideon 1

It's all about who you employ

These leaks are failures of vetting, and failures of need-to-know policies. Both become difficult to maintain when the numbers of employees in the organisations reach the numbers in GCHQ and NSA.

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KVM kings unveil 'cloud operating system'

Gideon 1

Nothing new - move along now

Running without an OS is common stuff in embedded systems. Yawn.

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Devolo dLAN 500 AV Wireless Plus: Triple-tech connectivity for the home

Gideon 1

Some UK houses have them to feed a standard lamp from the main room light switch, or as a dedicated supply for an electric heater on night tariff, or even as a supply for a clock.

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For pity's sake: DON'T MOVE to the COUNTRY if you want to live

Gideon 1

Twisty roads...

Twisty roads aren't as dangerous as straight ones with occasional blind corners/dips. I live on one of the most dangerous roads in Scotland, the A70 which, like the A9, couldn't be described as twisty.

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Village-swallowing MUDCANO was no accident, say boffins

Gideon 1

The bbc news website version of this story has a lot more detail, including about how the scientists came to their conclusions. I'll leave it to you to find the link for it as our hosts here might not like me putting it up.

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Gadgets are NOT the perfect gift for REAL men

Gideon 1

Re: Bang on...

Giving her something like that has the benefit of lowering her expectations, and forces her to be more explicit about what she would really appreciate instead of expecting you to mind-read her.

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Gideon 1

So disappointed, after three boring minutes I was expecting its head to explode or something...

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Caterpillar B15: The Android smartphone for the building site

Gideon 1

Re: ...torches can be like pencils or tape-measures...

I discovered stainless tape measures, they work even if it rains.

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Gideon 1

No led?

Just install the Flashlight app.

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Inventor lobs spherical, throwable camera

Gideon 1

Re: Bad example.

It would take a very large amount of fire to attenuate the radio signal, e.g. earth atmosphere re-entry plasma.

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Gideon 1

Re: Nice idea but

Even very hot fires emit lots of thermal radiation in the long and medium wave IR bands. Have a look at Planck's law.

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