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Comment: Re:Doesn't Gravity Affect Angle of Repose? (Score 1) 45

by icebike (#46774955) Attached to: Astronomers Solve Puzzle of the Mountains That Fell From Space

Yes, but his experimental platform is far from perfect, wouldn't you agree?

He's talking parabolic flights in powered aircraft, which lasts, what, maybe 30 seconds, and could not easily be shielded from all sorts of vibrations.

So the good geologist's work probably can't account for a moon-sized platform, or a mixed particle size, or the inclusion of water ice, etc. The angles do vary with gravity, grain size, grain polishing, binding agent inclusion, etc.

Still the Subject study uses a wide definition of the Angle of Repose ("anything between about 25 to 40 depending on size and type of particles involved."), and they suggest that all (or most) of these observed ridge shapes fit within that definition. While they mention water ice in their theory they don't seem to acknowledge its ability to drastically increase the Angle of Repose, easily up to 60 degrees in terrestrial gravity).

Comment: Re:How about... (Score 1) 45

by icebike (#46774787) Attached to: Astronomers Solve Puzzle of the Mountains That Fell From Space

Exactly, this article essentially is an elaboration on the Wiki Article's theory # 3.

They make much of the angle of repose, but the angle of repose is not a constant. Gravity of the planet/moon affects this angle, (which I am sure they accounted for), but so does the water content, or any other potentially binding agent (frozen CO2, etc) of the material. Even the shape of the grains of sand can affect the Angle of Repose.

Comment: Re:The Economist (Score 3, Informative) 163

by icebike (#46774557) Attached to: Ask Slashdot: What Good Print Media Is Left?

Dono If I believe that.

The Economist has always had a penchant for saying very little with the largest number of words.

If you sit down and try to outline one of their major articles, as I recently did, you will see how few points they actually try to make and the inordinate burden they imposed on the reader while making them. And its not like they provide quality supporting documentation to justify their points. Often they simply trout out half truths and over simplifications in point after point of seemingly endless paragraphs of supporting verbiage which provide little enlightenment.

Comment: Re:"Independent" discovery? (Score 2) 62

by icebike (#46752531) Attached to: Heartbleed Disclosure Timeline Revealed

Not necessarily. It may be that the bug was known to others and that Google and Codenomicon were both monitoring channels used by more nefarious types. Both organizations may have independently 'discovered' the bug after each becoming aware that an exploit existed without having full details of the exploit.

And the story should have been about WHEN those nefarious types first started mentioning it, not about when the white-hats actually found it.
Did those blackhats find it by reading the code, or accidentally stumbling upon it in some way?

I suspect it was the former, but I think that discussion is more important than when Google detected it. After all, the implication is that
google discovered nothing, but simply heard about it in the hallway or something.

Comment: Re:The CA should not revoke the certificates, (Score 2) 151

by icebike (#46743959) Attached to: Private Keys Stolen Within Hours From Heartbleed OpenSSL Site

However, the CA should issue the new cert for free in this case. It costs a CA exactly nothing to issue a new cert. Its not a consumable commodity. Allowing them to indiscriminately cancel certs without proof of compromise gives them access to every site's checkbook.

With no PROOF of being hacked, even the the fact that at some point in time the site was running a vulnerable openssl version seems insufficient proof to cancel a certificate, and require payment for a new one. Remember, none of this can be the fault of the site. As long as it is patched now.

And before the CA cancels any certificate, they themselves better be assured that they were always running a clean stack.

Comment: Re:Good idea (Score 1) 175

by icebike (#46674311) Attached to: Linux Developers Consider On-Screen QR Codes For Kernel Panics

how soon until someone accidentally posts a QR code containing confidential information, since they cannot read it themselves.

Since the crash handler itself generates the code that takes your phone's browser directly to the report site, this isn't going to be a problem.

Have you never actually uses a qr code the leads to a web site?

Comment: Re:Dump kernel to serial printer (Score 2) 175

by icebike (#46674289) Attached to: Linux Developers Consider On-Screen QR Codes For Kernel Panics

Or just display a short number code. Displaying a QR code won't solve anything, it will just obfuscate the error and leave the user without any easily memorable reference. This sounds more to me like "let's do it because it's modern and hip" rather than it being actually useful.

The QR code can not only indicate the exact location of the error, but can take you to a website on the phone, with a url long enough to log
  many key points about the error.

Even if it logs very little, developers will get more input this way than they do now, because when your machine is crashed, you can't report anything and once it reboots, you have other priorities than digging in the last crash dump.

However, other than collecting statistics, it might not do any good. Even when you do submit a dump, you get the request to install debug symbol packages and trigger the crash again. Ah, no, that isn't going to happen. Or there will be necessary drivers installed that taint the kernel, and devs wont touch it until replace your video card, untaint your kernel, and trigger another dump.

Comment: Re:Vitamin D (Score 2) 137

by icebike (#46662793) Attached to: Study: Exposure To Morning Sunlight Helps Managing Weight

You've totally missed the fact that the link lead to two different studies one of which was a Meta Analysis of 180 studies, which indicated that there was no measurable effect of Vitamin D. Its not like ONE study was done and it is easily overturned by your google search.

The meta analysis more than likely included all your google search results by proxy. The study is not paywalled so go read it yourself.

This is the beauty of meta-analysis, it can find significant overlooked results of smaller studies and overcomes a lot of researcher bias.

Comment: Re:Vitamin D (Score 1) 137

by icebike (#46657825) Attached to: Study: Exposure To Morning Sunlight Helps Managing Weight

There is no effect of Vitamin D, via supplement or via Direct Sunlight.
Vitamin D3 seems to decrease mortality (of all causes) by 11%.

But I agree that this present study seems to be confusing cause and effect. If you are outside early and running around in the sunshine chances are its not the light of morning that has the effect, its merely the fact that you are more active.

Comment: Re:They haven't tracked it down (Score 1) 491

by icebike (#46565737) Attached to: How Satellite Company Inmarsat Tracked Down MH370

They have tracked it to a place from which It didn't have enough fuel to return.
Unless you are hanging your hat on aliens beaming them up, or a long undiscovered island in the south indian ocean which just happened to have a 5000 foot runway, some times you have to go by the numbers and state that they crashed.

Comment: Re:ACARS (Score 3, Insightful) 491

by icebike (#46565623) Attached to: How Satellite Company Inmarsat Tracked Down MH370

No it isn't, its not using data from a system that WAS TURNED OFF within MINUTES of the last radio contact.

How the fuck did this get marked as insightful? Its make a wrong statement that everyone has know has been wrong since the second day.

You should try to keep up with the actual events instead of lashing out on Slashdot.

The DATA transmissions ceased on the ACARS, but the radio system still pings the satellite.
The radio system keeps its link with the satellite as long as the actual transmitter has power.

Just because you stop tweeting on your phone doesn't mean the phone stops talking to towers.

One good suit is worth a thousand resumes.

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