Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror
DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. Check out the new SourceForge HTML5 Internet speed test! ×

Comment Leeches are already back. (Score 1) 418

When will Trump bring back leeching?

They're already back. They're used in limb reattachment surgery post-operative treatment.

When limbs are reattached the arteries work well right away but the veins not so much. So they have poor circulation and inadequate oxygenation, especially at the finger and toe tips. This can lead to further cell death, infection, and transplant failure.

Leeches applied to the extremities of the limbs can pull out enough blood and bring in fresh to keep more cells alive and bring more infection-fighting white cells to the area. And leeches do little damage other than draining blood, and provide their own surgical tools and anaesthetic. (It's in their evolutionary interest to not bother the victim into pulling them off while they're feeding, and not leaving wounds that would make him tend to avoid the location later.) So raised-sterile leeches are used, with substantial improvement in reattachment success rates.

Comment Re:Storage? (Score 1) 418

To pick up where renewables leave off, you want natural gas (or even petroleum) turbines that can quickly be brought on and off line.

Also: If you really are concerned about carbon dioxide, they produce a lot less of it per unit of energy.

In fossil fuels most of the energy comes from burning the hydrogen to water. Burning the carbon to carbon dioxide provides some, but it's mostly useful for packaging the hydrogen. Oil and gas is essentially long-chain-of-carbon molecules with two hydrogens per carbon and two more to cap the ends of the chain (with occasional tree-structures with the same carbon/hydrogen counts, and the odd ring-shaped or multiply-bonded impurity that''s short one or two pairs of hydrogens.)

So oil is a little over two hydrogens per carbon, gas goes from about 2.5 (butane) to 4 (methane). But coal is essentially just carbon. So gas is best, liquid oil fractions are not as good (though convenient for mobile engines), and coal is worst, on the energy/CO2 production ratio.

Comment If coal is dead, killing its bueaucracy won't hurt (Score 1) 418

Coal is dead. ... trying to resurrect something ... dying [from] market forces ... is [perjorative].

This isn't about trying to resuscitate the coal industry (though if it lets it run a little longer and die more smoothly - rather than being suddenly assassinated in a fit of political vitrual-signaling - it will let the miners and their offspring migrate to other jobs, rather than to government assistance.)

It's about killing off the massive, expensive, and intrusive regulatory infrastructure that no longer serves any purpose.
If Big Coal IS being killed by market forces, the government needn't bother killing it off.

It also gives Trump the opportunity to keep a promise to some of his voting base, make political appearances claiming credit for it, and engage in some virtual-signaling of his own (conservative style).

Remember: He didn't promise to bring their jobs back (though if some of the jobs do come back, or existing ones not be ended as soon, it is a bonus). He promised to dismantle the regulations that had already killed jobs - and give a dose of job-killing medicine to the regulators.

I suspect schadenfreud will please his coal-state voters, and the prospect of voter revolts and sweeping reforms may make at least a few future regulators think twice before stomping jackbooted on the faces of those they regulate.

Comment I wonder how much is really malware? (Score 1) 129

I wonder how much of this stuff is really leftover Adobe metadata and how much is components of malware?

With 20% to 40% of the code/data space of major applications composed of "along for the ride" data that's never interpreted, there's a LOT of room for malware to park itself, its redundant copies, its resources, and its purloined data without having to actually create files of its own.

Comment Size is still important (Score 3, Interesting) 129

I used to [use a tool to de-bloat images] This was important since much of the world was still on dial-up back then.

It is still important.
  - Some of the world is STILL on dial-up. Even in the US. (especially the rural part: At my vacation/retirement ranch I had only 28kbps until AT&T upgraded the cell tower to LTE last year).
  - Some of the "high-speed internet" isn't very - like DSL at 1.5 or 6 Mbps, or WISPs serving an entire town with what amounts to a WiFi hotspot.
  - Some services charge by the bandwidth used.
  - Some services throttle back "heavy users"
  - Some services sell tiered usage, with higher prices for larger monthly data caps, and killing the link (e.g. prepaid), drastically throttling down (e.g. 4G dropping to 3G speed), and/or charging punitive "overage" rates for bandwidth beyond the pre-purchased tier.
  - As the users get farther away, latency and setup-turnaround for the components of a web page display also slow the process.

Web developers tend to work with disks and servers built into their machine or attached by a fast LAN. So it's easy to miss that the actual users' experience may be slower - even drastically so. (Thus was the web, at the dawn of image-laden web pages, nicknamed the "World Wide Wait".) And they're not charged for that bandwidth, so they also don't get their noses rubbed in the price of it when they receive their monthly bills or hit their monthly caps.

So keeping a web page's bandwidth use small is still useful:
  - Even on broadband it makes it quicker - "snappier" - which improves the user experience.
  - It can reach a wider audience, as those on slower or more latent links don't give up in disgust.
  - It saves some users substantial money.

Comment Yeah, I've experienced the pain. (Score 1) 105

The very first thing I noticed after booting for the first time: they forgot how to draw boxes.

Something I've run into since - I can't "run as a different user" properly anymore. My company has a rule for admins - you can't work from your admin account, so I've been right-clicking my Microsoft Management Console link and choosing "run as a different user". That quit working - now it says the super user doesn't have access to the management console, but if I actually do login with my admin account - like I'm not supposed - it works fine, just like it did before the update. I can probably figure out some rights changes and work arounds to make it work - but is that what I should be spending my time on?

I've been a Microsoft hater for close to two decades - I've recently softened up on them because Windows 8 and 10 really did introduce a bloat reduction, stability, and performance severely lacking in previous versions, but crap like this and less than ethical data collection and advertising in the system itself are keeping me from embracing it on my personal stuff.

Comment Re:How will this affect the LIttle Critter books? (Score 0) 156

You know - I have a case of Aspergers. I occasionally have issues picking up on jokes and what people are really getting at, but I've trained myself through the years and paying attention to mostly get by alright. Occasionally on Slashdot however I find that I get a reply from Drax the Destroyer and I don't feel so bad about the areas that I still have difficulties with.

Comment Re:It has its uses (Score 2) 411

I remember back in school writing a (very rudimentary) MIPS emulator for a class assignment. Since most of the students had never used C before school (and were, in any case, more used to C++ references than pointers), apparently I was the only person in ~10 years that implemented the emulator using an array of function pointers (indexed on op codes). I thought it was a pretty cool innovation, then I read about jump tables.

Still cool :-)

Comment Re:Fortran (Score 1) 628

I'm not quite old enough to have used FORTRAN.

What does age have to do with anything? I took a computational linear algebra course in the late '90s that used FORTRAN nearly exclusively.

That said, I started out, like most kids in the '80s, with BASIC and assembly language (6809 and 6502, in my case). I started college early enough that the introductory computer-science courses were still in Pascal, but pretty much every course that needed to do real work used anything but Pascal...lots of C, with a systems-programming course splitting time between 8086 assembly and VAX assembly and a database course that introduced us to SQL (of course).

The computational linear algebra course mentioned above was a math course specifically for computer-science majors; other engineering students took a different linear-algebra course.

Comment Basic / Pascal (Score 1) 628

I guess my very first programming experience would be Logo sometime in elementary school, but about the same time I was learning GWBasic. My dad got me a book from the library that had programs you could type in and run. I've never forgotten typing in 500 lines (supposed to be some kind of space shooter) and then program didn't work. I never figured it out!

Soon after I started using Qbasic (the version that could compile EXE files).

My next programming language was Pascal through Delphi and then C++ through Borland's C++ Builder. I picked up a copy,of the K&R C book around the same time that today is very well worn!

I was very interested in different languages around high school and so I picked up a smattering of Visual Basic, a senior high school independent study in Visual Studio C / windows API (why?!), x86 assembly, OS/2 REXX scripting, etc. I wrote an ecommerce site for a local business in 1999 using PHP and a perl cgi-bin cart system.

Picked up Java in college, one course with Prolog, etc.

Today I'm not a professional programmer, but I end up using PHP, Python and Perl for text processing, SQL, etc with some regularity.

Slashdot Top Deals

In the realm of scientific observation, luck is granted only to those who are prepared. - Louis Pasteur

Working...