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Engineers Develop 'Ultrarope' For World's Highest Elevator

Fubari hello turbolift? Re:LSM (242 comments)

That was a cool article, thanks for the link, this part made me think StarTrek style turbolift:
from the linked article (emphasis added):

Flexible configuration: LSM elevators can propel a vehicle in any direction, and cabs can be switched from hoistway to hoistway, enabling the creation of “one-way” hoistways with multiple cabs in each. Modular stators allow the height of the elevator to be customized at installation and extended in the future with minimal disruption. LSM elevators can also accommodate inclined layouts, providing an alternative to stairways or escalators.

2 days ago

Senator Who Calls STEM Shortage a Hoax Appointed To Head Immigration

Fubari The upside of nothing..Re:This is gonna be fun ... (512 comments)

The upside of doing nothing is that it doesn't make things worse ...

... The "do nothing" Congress is flipping from a tie (House vs Senate) to mostly one side.

These appointments are meaningless if nothing gets done.

So actually, event nothing sounds like pretty good news to me.
How would things work out if Senator Orrin "The STEM sky is falling!" Hatch was heading that up?

about a week ago

Ask Slashdot: High-Performance Laptop That Doesn't Overheat?

Fubari Sager +1 :Take a look at Sager Systems (325 comments)

I will second Sager, I have been very pleased with my Sager NP8255-S (aka Clevo P157SM). I is going into its 2nd year now. I ended up choosing the Sager because:
1. strong i7 cpu
2. up to 32gb ram
3. supports four hard drives
Actually "four hard drives" for this model means 2 x 2.5" and 2 x m2 slots. Which is huge, compared to the alleged mainstream performance workstations like Dell's Precision line or HP's z-books or Lenovo's W-series.
I'm running 3 x 400gb ssds in a raid 0 and I find that disk-intensive workloads are pleasingly fast.
I am getting the following in PassMark's Performance Test 8.0:
overall disk score: 5,558
seq read: 715 MB/sec
seq write: 523 MB/sec
random rw: 300 MB/sec
(just for the record, I run regular backups because because of the potential fragility of raid-0).
Why not a 4-drive raid? I figured I'd save a 2.5" slot for a multi-terabyte disk some day for on-board archives once I fill up the ssd's. (And I still have the optical bay to drop a caddy in if I need more storage).
Until 8x pcie ssd devices are available in laptops, raiding SATA together seems like the best way to boost lugable disk performance.
It loosk like the NP9752-S is the current model of this machine.

Now... if if you're looking for insane power in a laptop form factor, take a look at Eurocom's Panther.
If you really need crazy CPU cycles, this seems like a good choice:
PassMark for xeon E5-2687W v2

Here are the specs; I didn't go with the Panther because the cost-curve didn't work for me (money actually is an object in my case).
All-in-One Server with XEON 12-cores/24-threads, integrated display, keyboard and built in UPS (Uninterrupted Power Supply)
WEIGHT/DIMENSIONS: 5.5kg (12.1lbs); 419(W)x286(D)x57.9-62.1(H)mm (16.76x11.44x2.31-2.48inch)
SECURITY: TPM 1.2; Fingerprint, Kensington Lock
OPERATING SYSTEMS: Microsoft: Server 2012, 2008R2; VMware, VMware ESXi; Linux; RedHat 6.4 Enterprise Server Edition
CORE LOGIC: Intel C600/X79 Express Chipset
PROCESSOR: 12-core, 10-core, 8-core and 6-core Intel XEON E5-2600 and E5-2600 v2 series; up to E5-2697 v2 (12-cores/24-threads); socket LGA2011
MEMORY: up to 32GB; DDR3-1333/1600/1866; four physical SODIMM sockets
EXPANSION: Built-in ExpressCard 34/54 slot (for optional Expansion box required for Dual/Quad Port or Fiber LAN Adapter for i.e. for VMware ESXi)
STORAGE: up to 8TB of storage with four physical HDD or SSD, RAID 0/1/5/10 support; SATA 6Gb/s
NETWORK:on-board 1Gbe LAN (Intel 82579V); 2nd or Dual-port LAN Adapter(s) available via ExpressCard slot or via external expansion Magma box
OPTICAL DRIVE BAY: DVD-RW or Blu Ray Burner or 4th Hard Drive
I/O PORTS: 3x USB 3.0; 2x USB 2.0; eSATA; Firewire-800 (TI XIO2221ZAY); DisplayPort v1.2; DVI-I (SL); HDMI 1.4a out w/HDCP; Headphone; Microphone; S/PDIF out; Line-in; RJ-45 / LAN

about three weeks ago

Why We're Not Going To See Sub-orbital Airliners

Fubari exponentially.... Re:huh? (300 comments)


That word does not mean what you think it does.

While everybody loves a good Princess Bride reference, could you spell out where steelfood went wrong?
If traveling faster takes exponentially more fuel, then the cost of that fuel must drop by a similar amount - wait for it - an exponential amount, for it to be cost effective, where "cost effective" means the same overall cost as traveling at a slower speed.
That seems logically consistent.
Maybe the economic model was a bit simple; being able to travel somewhere twice as fast may well be worth paying 4x in fuel costs.
*shrug* I just thought steelfood made a valid point; I don't see why "exponential" was an incorrect choice of word.

steelfood wrote (excerpt):

The problem with high speed travel is that the higher the speed, the costlier the travel in terms of energy. The curve is exponential, so that at some point, even a small increase in speed requires a significant amount of energy to achieve. Without a source of energy exponentially cheaper than what already exists (like cold fusion), that sweet spot of price to performance is never going to move.

about three weeks ago

Hubble Takes Amazing New Images of Andromeda, Pillars of Creation

Fubari before you hit Kickstarter... Re:The Price of Art (97 comments)

Sounds like it could be a kickstarter project. But hold that thought.
The James Webb space telescope is scheduled for 2018 launch at the bargain price of only $8.8 billion.
The Webb's mirror is 6.4 meters across, compared to the Hubble's 2.4 meter diameter.
So roughly 32 square meters for the Webb vs. about 4.5 square meters for the Hubble.
Considering Nasa's usual tempo, another three years (2018) isn't all that long.
Very cool stuff. It is thinks like this that make me think the human race is more of a "glass half full" species.

about three weeks ago

Ask Slashdot: Are Progressive Glasses a Mistake For Computer Users?

Fubari bifocal suck, adjustable lenses = sweet (464 comments)

I have tried bifocals (traditional and progressives) and they pretty much suck.
Sadly my favorite glasses, SuperFocus, have gone out of business and it seems like they're not coming back.

So, I am looking forward to seeing what the Adlens people can do; this will probably be my next pair of glasses. Blog post with an Adlens review
Link to an overview of what Adlens does: https://www.adlens.com/our-technology/

With any luck I'll never use fixed lenses again; adjustables are just that nice.
My current SuperFocus glasses were kind of expensive ($700+), but I would buy them again in a heartbeat... they are just that awesome. It is hard to describe how nice it is to see all 3 of my computer monitors in sharp focus at the same time without having to maneuver my head to position the progressive's sweet spot. Or to watch television, or look at my ipad, or drive, all in sharp focus with a really easy adjustment to the glasses' slider.

about a month ago

Review: The BlackBerry Classic Is One of the Best Phones of 2009

Fubari passport anyone? Re: la-la land. (132 comments)

...but do miss the QWERTY keyboard like mad. I've been waiting for any company to launch an Android phone with QWERTY keypad., that don't suck . But I guess the Blackberry Classic is as close as I can get to that.


I'm comfortably easing into using my passport. Currently on day #3, so far so good.
The passport's keyboard is very well done, they have put a lot of thought into the user interface and hardware: here is an interesting video of the keyboard in action. Limiting the physical keys to just 3 rows of letters actually works really well with the virtual rows that can pop up on screen.
I'm sure I will find some things about the passport that I dislike, I just haven't found any thus far.

about a month ago

The Joker Behind the Signetics 25120 Write-Only Memory Chip Hoax

Fubari nice :-) Re:EIMAC Spoof Data Sheet (100 comments)

Nice :-)
length: 1.076 cubits
diameter: 0.643 cubit
net weight: 0.069 stone
shipping weight: not shippable

about a month and a half ago

Ask Slashdot: Convincing My Company To Stop Using Passwords?

Fubari exposure? Re:Consider Your User Base (247 comments)

What is the exposure?
If your company was ever hacked, what would the consequences be?
If the consequences could be serious, follow the advice of educating your decision makers as brilliantly outlined by Captain D, above.
Otherwise, what difference does it make if your company's machines and network(s) were actually compromised?
I mean, what difference will a few more zombies in some bot-net actually make?

about 2 months ago

Ask Slashdot: Who's the Doctors Without Borders of Technology?

Fubari Re:Nerds Without Borders (112 comments)

oops. thanks for the fix


That's not the right website for NWB - that's some kind of tech blog with adverts.

The correct site is: http://nerdswithoutborders.net/

about 2 months ago

The Effect of Programming Language On Software Quality

Fubari so, static == more defects? (217 comments)

Wait. Aren't they saying that static typing needs more defect-fixes and dynamic needs less defect-fixes?
Relevant parts highlighted:

"The remaining coefficients are significant and either positive or negative.
For those with positive coefficients we can expect that
the language is associated with ... a greater number of defect fixes.
These languages include C, C++, JavaScript, Objective-C, Php, and Python.

The languages Clojure, Haskell, Ruby, Scala, and TypeScript, all have negative coefficients
implying that these languages are less likely than the average to result in defect fixing commits"

Isn't the real message here to choose static typing if you like fixing bugs?

about 3 months ago

Check Out the Source Code For the Xerox Alto

Fubari Dealers of Lightning Re:Xerox Alto window-based O (71 comments)

A fun read... http://www.amazon.com/Dealers-Lightning-Xerox-PARC-Computer/dp/0887309895 excerpt from summary:

In the bestselling tradition of The Soul of a New Machine, Dealers of Lightning is a fascinating journey of intellectual creation. In the 1970s and '80s, Xerox Corporation brought together a brain-trust of engineering geniuses, a group of computer eccentrics dubbed PARC. This brilliant group created several monumental innovations that triggered a technological revolution, including the first personal computer, the laser printer, and the graphical interface (one of the main precursors of the Internet), only to see these breakthroughs rejected by the corporation. Yet, instead of giving up, these determined inventors turned their ideas into empires that radically altered contemporary life and changed the world.

about 2 months ago

Microsoft Develops Analog Keyboard For Wearables, Solves Small Display Dilemma

Fubari Re:Why would you want to type at all? (100 comments)

reasonably good voice recognition? Maybe, for a given value of "good'.
Voice recognition is hit or miss for me on android now... it works "reasonably good" provided I have....
1) Low background noise.
2) Solid network connection to upload & process voice sample on google's server farms.
3) In a place where I can talk and don't care if others hear what i'm saying.

So when it works I am suitably impressed, but it doesn't work often and I'm not always able to use it.

Just a data point: my ancient Palm smart phone had more usable voice dialing than my android does today, and that thing was 100% local processing. None of this "busy icon" for 30 seconds to time out and say "Please try again" because 4G data skipped out or something, which is what I see often enough to be a pain when I'm voice dialing or map searching etc.
(and yeah, I would probably complain about my flying car if I had one :-) I am amazed voice recognition works as well as it does, it just isn't at 100% yet.)

Why would you want to type at all? There's reasonably good voice recognition now, that's got to be better than trying to finger-paint letters on a tiny watch screen?

about 4 months ago

Ask Slashdot: Advice On Building a Firewall With VPN Capabilities?

Fubari +1 for parent Re:Vyatta (238 comments)

+1 for parent; I'm just learning about Vyatta. If you want to build your own as a research project, cool. Otherwise read up on this: vyatta and see if it might do what you want.

Just download and install VyOS (fork of Vyatta) if you're building your own firewall.


about 5 months ago

Climate Damage 'Irreversible' According Leaked Climate Report

Fubari Re:math err? Re:Beyond what humans can do (708 comments)

r.e. .8 vs .85
argh :-)

The numerator above seems off: what is 6445 ?

4.75 tons of petrol is 6445 litres. Since petrol is 85% carbon, we can divide the 6445 litres by 0.85 and we get 7582 litres of petrol containing 4.75 tons of carbon.

For the weight of a big tub of petroleum containing 4.75t carbon, I think you'd have: 4.75 tons of carbon / .85 = 5.938 tons of petroleum.

Your answer is wrong: 4750 Kg of carbon / 0.85 = 5588 Kg of petrol. It looks like you divided by 0.80 instead of 0.85?

5588 Kg of petrol / 0.737 = 7582 litres of petrol.

about 5 months ago

Climate Damage 'Irreversible' According Leaked Climate Report

Fubari math err? Re:Beyond what humans can do (708 comments)

Wikipedia says the carbon content of petrol is up to about 85%: http://en.wikipedia.org/wiki/P... [wikipedia.org]
So 6445/0.85 = 7582 litres of petrol contain 4.75t of carbon.

I'll start by saying thank you for the analysis; that was thought provoking.

The numerator above seems off: what is 6445 ?

For the weight of a big tub of petroleum containing 4.75t carbon, I think you'd have:
4.75 tons of carbon / .85 = 5.938 tons of petroleum.

To see how many Liters of petroleum that would be, we get:
5,938 Kg of petroleum / ( .737 Kg/L ) = 8,057 L.

Using that average fuel economy of 5L/100Km yields a range of
8,057L / ( 5L/100Km ) = 1,611 / (1/100km) = 161,100 Km
(Or 100,040 miles for our readers in Burma, Liberia and the United States.)
Which is indeed a LOT of driving in one year.

The oracle of Yahoo Answers suggested that 19,000 to 24,000 km (12,000 to 15,000 miles) is a more reasonable average.
So by carbon weight, yeah... the gp's claim for Carbon is roughly a factor of 8 too high (161,100 km / 20,000 km/yr).

You raise a good point considering whether the gp meant 4.75 tons of CO2 instead of carbon.
To do this I think we need to revise our petroleum footprint.
You'll recall we first derieved that above based on just the target carbon weight.
We'll take the same approach for our target CO2 weight.

So... to get 4,750 KgCO2 emissions we need to burn a certain amount of petroleum.
That works out to 4,750 KgCO2 / (2.331 L/KgCO2) = 2,037.8 L of petroleum.
Which yields an alleged annual distance of:
2,038 L / ( 5L / 100Km )
= 408 / ( 1 / 100Km)
= 408 * 100Km
= 40,800 Km (25,351 miles)

Which is closer, but still off by a factor of at least 2 unless maybe they were talking fleet cars.
*shrug* don't know... it is hard to tell what point they were making.
(and yeah, this was much more fun to do over lunch than reading yawn-inducing project requirements :-) )

about 5 months ago



writing a tech-book: tools & surprises?

Fubari Fubari writes  |  more than 6 years ago

Fubari (196373) writes "For all you book authors on Slashdot: what writing tools have you found helpful? I want to start my book-idea off right (so I'm pretty sure I don't want to write it in MS-Word). I would love to hear about what has (or has not!) worked well for you.

What I have thought of so far are things like chapter/section management, easy references to figures (charts, diagrams, source code), version control (check in/check out parts like chapters, figures, etc.) and index generation.

I would also welcome advice about what I don't know enough to ask about. Are there any surprises that you wish you had known back when you first started?"

Fubari Fubari writes  |  more than 7 years ago

Fubari (196373) writes "Anybody know when laptops over 4gb might be coming out? Some of the devtools I want to run are just obscene ram-pigs. On the desktop I'm using now (win2003), it sucks up 1.6gb just to boot. By the time I log in and start doing work, it is stretching 2gb.

Move that to vista, add a vm-ware session or two, and I'm worried I'll be pushing 4gb.

I'm torn between buying a 4gb-max laptop now, or some mini-desktop that can fit in a set of luggage wheels. A friend of mine suggested something like this, but my first choice would be something designed to be portable."


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