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Comment: Re:Dark Matter == Measurement Uncertainty? (Score 2) 37

by MrFlibbs (#47473911) Attached to: Two Big Dark Matter Experiments Gain US Support

There are several data sets that suggest the presence of Dark Matter:
    1) Orbital velocities of galaxies within a cluster are too high -- the galaxies should fly apart unless much more mass is present.
    2) Observed rotational velocities of edge-on galaxies are wrong: stars near the edge rotate too fast -- unless there's a cloud of mass beyond the observed disk.
    3) Gravitational lensing effects are too strong for the observed mass of the lensing clusters.
    4) Numerical simulations modeling the Big Bang up to present times work well only if Dark Matter is assumed.

There may be other data sets, but these are the ones that were presented in the Coursera class I took last year titled, "Galaxies and Cosmology".

Comment: Re:wrong wrong wrong (Score 4, Informative) 180

by MrFlibbs (#44748151) Attached to: Intel Launches Core I7-4960X Flagship CPU

Amazing. Everything you said about HT is completely wrong. Where ever did you get this information?

Intel's hyperthreading consists of two logical processors sharing the same compute resources. Each logical processor has its own register set but shares decoders, adders, shifters, cache, etc. as it goes about executing its assigned thread. The sharing process is vastly more complex and efficient than you seem to think -- there's no alternating of cycles. Once instructions are decoded into uops, they flow through the pipeline in a dynamic fashion that sometimes leads to one thread using most of the resources while the other one waits. In fact, this is a big advantage of the design -- when one thread stalls from a cache miss, the other one uses all the resources until the first thread's memory access completes. A much better plan than your scheme of using only even/odd cycles.

Managing this process is not simple, and steps must be taken to avoid both deadlocks and livelocks as the two threads compete for resources. But the process is dynamic -- the design allows one thread to run unimpeded when it makes sense to do so, while still preventing one thread from being starved at the other's expense. But this "every other cycle" notion of yours is pure nonsense. The core can retire up to four uops per cycle, and at times these all come from the same thread.

Comment: Re:Seriously? (Score 5, Funny) 816

by MrFlibbs (#41823029) Attached to: Disney to Acquire Lucasfilm, <em>Star Wars</em> Episode 7 Due In 2015

Let the wailing and gnashing of teeth begin! Then again, it couldn't be worse than episodes 1 and 2.

Oh yeah? Picture this: Luke Skywalker's son flying off to be trained in the ways of the force by an aging Jar-Jar Binks. After stopping on the way to pick up Chewbacca's son. On Life Day.

Bet that's the scariest thought you'll have this Halloween.

Comment: Re:They need to innovate (Score 2) 161

by MrFlibbs (#41168577) Attached to: AMD's Next-Gen Steamroller CPU Could Deliver Where Bulldozer Fell Short

Actually, the "best gaming CPU for the money" article to which you refer only gives the FX-4170 a rating of "Honorable Mention". These are Tom's Hardware recommendations for gaming CPUs at varying price points (from the July version of the article):

~$70: Pentium G630
$100: Pentium G870
$110: None (FX-4170 Honorable Mention)
$125: Core i3-2120
$180: Core i5-2310
$200: Core i5-3450
$230: Core i5-3570K
$590: Core i7-3930K

Sadly, the best desktop CPU AMD has to offer is bested by the lowly Core i3, and is crushed by any of the Core i5s.

Comment: Re:Warranty? (Score 1) 529

by MrFlibbs (#39929339) Attached to: Philips Releases 100W-Equivalent LED Bulb, Runs On Just 23 Watts

Contrary to your assumptions, mini-floodlights are in fact commonly used indoors. A quick check at the websites for Lowes or Home Depot demonstrates this clearly. In fact, the fixtures into which I placed CFL mini-flood lights were explicitly designed for indoor mini-floods and held incandescent mini-floods at the time. Your assertion that the lights are used incorrectly is, quite simply, wrong. Perhaps you should tell GE and Phillips (among others) that their CFL mini-floodlights are a "f-ing stupid idea" -- they seem to have no qualms about making and selling them.

A casual perusal of a pro-CFL site makes the following statement with regards to CFL statup times:

    "Only the flood light styles start at noticeably less than full illumination, but within 20 to 30 seconds they are at over 80% illumination."

My experience is that this is an understatement -- it takes mine at least a full minute to reach 80% illumination and they don't hit 100% until about two minutes. I've read from other sources that the start up times tend to deteriorate over time, so perhaps that accounts for the difference. But the simple fact remains your assertion that all modern CFLs start up instantly is wrong. Even pro-CFL sites admit as much.

Maybe the fact that you "always end up in this sort of discussions" is due to your refusal to accept the facts of the situation?

Comment: Re:Warranty? (Score 1) 529

by MrFlibbs (#39926519) Attached to: Philips Releases 100W-Equivalent LED Bulb, Runs On Just 23 Watts

(And, incidentally, current CFLs have no startup time, at least not one that humans can notice. Complaining that you were sold something that is shitty that is supposed to last for five years is reasonable, but it's not a reason to not buy new ones, which do not have that problem.)

And, incidentally, you are quite wrong. There is a difference between the CFLs with the exposed "twisty" tube and those that are enclosed. I have some mini-floodlights in my kitchen that are of the enclosed type, and it takes them at least two full minutes to achieve maximum brightness. These are GE bulbs that are only a few years old. For the first thirty seconds or so, their brightness level is about that of a night light. Quite annoying. Oh, and I went through several bulbs that burnt out within a few months before finding a set that now seems reliable.

I do have other, exposed tubes that turn on quickly. But saying all CLFs have no startup time is just plain wrong.

Comment: Re:Its not just Windows ... (Score 2) 332

by MrFlibbs (#39712109) Attached to: iTunes' Windows Problem

iTunes may need to be redesigned and rewritten, but probably not broken up.

I agree with this last statement in that multiple apps is definitely not the way to go. However, I feel compelled to add that iTunes needs to be completely redesigned. I've had my iPad2 for about six months now, and was frankly shocked to discover just how awful is the iTunes user experience. I think many of the problems are because iTunes was written to manage DRM'ed MP3s and was later expanded to include movies, books, and photos. These other features were bolted on and do not behave consistently. (Why are MP3s, movies, and books in libraries but photos are not?)

I recently built a new PC and wanted to make it the new host for my iPad. Copying all the files over from the old PC to the new PC was easy, but getting iTunes reconfigured to match the old setup was a nightmare. This is part of the DRM legacy -- iTunes was designed to prevent the user from copying things easily to and from Apple devices. Else the users might use stuff they didn't buy through the iTunes store.

What's weird is photos I take with the iPad itself can be drag-and-dropped by Windows, but photos copied onto the iPad from iTunes are invisible. But if I edit an uploaded photo with the free photoshop app the modified photo is now visible. And this is a company known for its slick user interface? Really?

iTunes in its current form needs to die. The alleged rewrite can't come quickly enough for me.

Comment: Re:There's no such thing as a "British" accent. (Score 3, Insightful) 516

by MrFlibbs (#39528407) Attached to: Why Are Fantasy World Accents British?

Reminds me of a story I heard on NPR years ago. The Scottish speaker said he was at an American dinner party when someone used the term "you Brits". He kept looking around until he realized she was referring to him. He didn't consider himself British, so to answer the question, "Who is British?" he told a story that went something like this:

As a young college student attending freshman orientation at Oxford, he met a nice fellow from Wales. They discovered that, if they both spoke slowly, they could just understand each other through their strong regional accents. They both needed a flatmate and so decided to room together. Finding a flat listed in the paper at a reasonable location and price, they set forth. The woman who answered the door spoke such a thick Irish brogue that neither of them could understand a word she said. So, she fetched a gentleman from down the hall to act as interpreter. But his cockney accent was so severe they couldn't understand him, either. Eventually, he pointed at the newspaper listing, she held out her open hand, and the two of them put in the first month's rent. So, which of them is British? His conclusion was that, technically, they all were, but in practice they were all something else. He supposed the Queen was authentically British, but if anyone asks, he's a Scotsman!

Comment: Re:Interesting read (Score 4, Interesting) 73

by MrFlibbs (#39522597) Attached to: Why Hubble Broke and How It Was Fixed

I attended an astronomy conference a year ago that included a presentation from a NASA guy on the mars rovers. He had a few disparaging things to say about Lockheed-Martin, including blaming them for the Mars Climate Orbiter failure. He said their contract included a statement to recalibrate the thruster in the metric system but they failed to do so. (Of course, he neglected to mention that NASA was managing the project and failed to catch the error.) He also said one of the rovers drove by the heat shield (built by Lockheed-Martin) from the rover landing and there was a big disagreement over examining the heat shield up close to see how well it held up. Lockheed-Martin wanted the data but wanted to keep it secret on the grounds it was a proprietary design. NASA said all their data is public so it's either we drive by without looking, or we take a look and release all the data. They eventually did the latter.

One more thing -- the same conference included a presentation by a professional astronomer who had overseen the building of an observatory in Chile. He had disparaging things to say about NASA -- that their cost estimate was 10X over what he eventually spent on the project. Guess it all depends on your point of view.

Comment: Re:More "zero tolerance" idiocy (Score 1) 804

by Sandbags (#32171864) Attached to: 3rd-Grader Busted For Jolly Rancher Possession

In combination with any other medication that may have already been issued by parents, or by the school nurse, it can have adverse effects. In combination with large amounts of caffiene it may have other reactions. On an empty stomach, and in an overactive child on a hot day at recess (where this happened), especially if their digestive system is a bit weaker than others, it could be very bad indeed, leading to vomiting (which it did) and blood pressure issues (which were monitored as a just-in-case failsafe).

Any medication given to a child without explicitly consulting the packaging and at the order of a doctor can have harm, far more so in uncontrolled combinations of other medicines, and various foods (or lack there of). This is exacerbated when time release medicines are chewed and release rapidly.

Comment: Re:Bad on software patents (Score 1) 239

by Beyond_GoodandEvil (#32171796) Attached to: Hollywood Nervous About Kagan's Fair Use Views

John Paul Stevens is a conservative. He appears "left" only in comparison to the hard right composition of the rest of the court.
Ummm, No. Anybody who thinks the framers of the US Constitution didn't intend to limit the federal govt. powers is not a conservative(Stevens also didn't bother to read the Federalist Papers either if his dissent of DC v Heller is any indication.)

Comment: Re:This will get no play because it is nuclear.. (Score 1) 799

by brainboyz (#32171596) Attached to: Oil Leak Could Be Stopped With a Nuke

The cold war arms race averaged around 25.000 tons of TNT, though there were some weapons made that did 50k and some with a theoretical limit at 100k tons.

Wrong prefix. Some were made to 50Mt with a theoretical of 100Mt (Tsar Bomba).

And I wouldn't want to be in the same ocean as a nuke burst. Hydraulic forces can hurt, especially at any distance where the explosion would be visible through the water.

"You don't go out and kick a mad dog. If you have a mad dog with rabies, you take a gun and shoot him." -- Pat Robertson, TV Evangelist, about Muammar Kadhafy

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