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Robot Operating System To Officially Support ARM Processors

cb88 Linux version first? (33 comments)

I ran ROS on a Pandaboard running Gentoo/Linux ARM just fine over 2 years ago... the main problem was the pandaboard lacked the processing oomp for alot of things. We were looking at doing 3d SLAM but the fact is I am not sure even the latest ARM boards are up to that... in the end we scalled back our goals to more resonalbe levels. This just makes it officially supported there isn't much effort involved other than possibly actively getting more packages working as my testing was limited to most base packages and not some of the more exotic ones.<br><br>Android isn't really appropriate for robots... sure it will work but you'd be better off with Linux IMO, Android focuses on Dalvik/ART whereas Linux supports C/++ Python and Lisp natively which is what ROS runs on, and if you want an interface just write one in QT or Mono/Winforms etc.... since both are cross platform.<br><br>I think one thing that would make using ROS alot easier is a tool to develop robot models graphically... as far as can tell they still require that you write the joint transforms manually which is quite hard to get right.

about a month ago
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NSA Considers Linux Journal Readers, Tor (And Linux?) Users "Extremists"

cb88 Re:Paging cold fjord and c6gunner! (361 comments)

Yep... the bearded ones are Unix engineers and Perl hackers... O.o and Emacs users of course on the other hand I envision Vim users to look like nerdy versions of patrick stewart (mostly the shiny head)

about 4 months ago
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NSA Considers Linux Journal Readers, Tor (And Linux?) Users "Extremists"

cb88 Re:Know your history (361 comments)

Yeah,I agree... But at the same time also think that the things that may the USA truly great may still stand a chance. I mean the things you list are side effects of "America" .. the freedom and liberty enjoyed for the last 15-20 coon ages is what has made the country great. Sure we have our rough spots but people eventually come around and remember what being American is all about.... adversity fosters it!

about 4 months ago
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Intel Confronts a Big Mobile Challenge: Native Compatibility

cb88 Re:intel and power efficiency (230 comments)

Not really... Integrated GPU. The GPU on your core2 is in the chipset which will blow a few more watts than the 10watts difference to the Haswell. So overall the Haswell will probably win in overall at the wall power measurements.

about 4 months ago
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Intel Confronts a Big Mobile Challenge: Native Compatibility

cb88 Re:Fsck x86 (230 comments)

The "superiority" of X86 had nothing to do with the demise/back burnering of other architectures.

Just about every processor arch has been maimed by confrontation on a marketing front... Alpha, Sparc, Power, Arm.... the ones that have survived have regulated themselves to niche markets (in the case of ARM a really really big niche) so they don't have to do battle with Intel and AMDs marketing and established user base.

I don't know about the rest but Sparc has backward compatibility that rivals Intel's as well as good performance.

about 4 months ago
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AT&T Charges $750 For One Minute of International Data Roaming

cb88 Re: 50MB = 750$ (321 comments)

If you use data at all on your device even with marginal usage otherwise like me... (I go through 500Mb every few days) then Ting is not for you.... so I'll stick with the $50 tmobile "unlimited plan"

Apparently I'm part of the 2% .... :/ some people have pointed out rebublic cellular to me as well but the gottcha there is that you have to use a provided phone and you can't tether at all ever.

about 5 months ago
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AT&T Charges $750 For One Minute of International Data Roaming

cb88 Re: 50MB = 750$ (321 comments)

You think you have problems... the UI on this site is so screwed up now I can't get to the settings page to switch it to something else!

about 5 months ago
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AT&T Charges $750 For One Minute of International Data Roaming

cb88 Re: 50MB = 750$ (321 comments)

The free data roaming only applies to contract plans... the month to month pre payed plans do not count!

I learned this the hardware on a trip to Brazil... I think texts were 25 cent each and like $2 a min calling or something like that. That said T-mobile is the one of the best value plans around... and I have noticed the HSPA coverage is improving in my area (Charlotte/Gastonia,NC).

about 5 months ago
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Grace Hopper Documentary Edges on Successful Crowdfunding

cb88 Re:Ob (65 comments)

She is a legend that is what she is... there are videos over on on the late night shows online as well that are quite entertaining.

https://www.youtube.com/watch?v=1-vcErOPofQ

about 5 months ago
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OpenPandora Design Files Released

cb88 Re:Why Non-commercial? (65 comments)

It is a Linux Handheld... if it runs on Arm Linux you can run it on this.

A friend of mine has one.. and it seems to perform decently. The biggest thing is the controllers which make it a clear winner over a phone for gaming. There are native games as well as emulators. You can also run chat programs etc.. nearly anything you could run on a desktop with 512Mb ram.

about 5 months ago
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HP Delivers a Big-Name, 7-inch Android Tablet For $100: Comes With Compromises

cb88 Never heard of Allwinner!?! (182 comments)

Allwinner is the king of tablets ... http://www.eetimes.com/author.asp?section_id=36&doc_id=1287293

The Cubieboard is also a popular RPi alternative with faster CPU (and sweet sweet SATA :D ) and such for similar price.

In my opinion Allwinner is more credible than HP these days since they actually seem to believe in their own market... whereas HP is practically at the point of execs jumping out of windows (Or the modern equivalent of selling the company out for peanuts).

about 5 months ago
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Biggest Dinosaur Yet Discovered

cb88 Re:advice to those who name dinosaurs (113 comments)

It isn't specific to any single group of paleontologists. The theory is that scientists like to name dinosaurs, so whenever they find one that looks a bit different they make up a new name rather than trying to figure out if it is just another development stage of a previously discovered dinosaur. This is perfectly understandable taking human nature into consideration.

There is a TED talk by Jack Horner that covers the topic. http://www.ted.com/talks/jack_horner_shape_shifting_dinosaurs

Jack explains how he has proven than many differently named dinosaurs are acutally the same ... he also explains a bit of the thoght process that causes this to happen.

about 5 months ago
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Supreme Court OKs Stop and Search Based On Anonymous 911 Tips

cb88 Re:Anybody know the plate# for each scotus? (461 comments)

That was true about 5 years ago in my area... There used to be a payphone at the local community college as well and one at McDonalds now all of them are gone.

about 6 months ago
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3-D Printed Skull Successfully Implanted In Woman

cb88 Vibranium FTW (132 comments)

Its too bad Captain America has all of it...

about 7 months ago
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Some Mozilla Employees Demand New CEO Step Down

cb88 Re:Instantly fired. (824 comments)

Actually you are right... he killed off most of the opportunity for integrating other language engines. He had a strong hand in steering the web down the road of madness that it is currently on. Sure there is alot of cool stuff it brings us but there are also giant flaws that are tied directly to javascript and basically being stuck with it.

There are quite a few alternatives now that might actually be better.. Lua for instance has one of the fastest and smallest jit engines around. You have to admit it would be nice to have other options for writing client side code in...

about 7 months ago
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Interview: Ask Theo de Raadt What You Will

cb88 Re:OpenBSD and Wi-Fi (290 comments)

Not just the other Unixlike BSDs .. for instance Haiku OS has a quite mature port of the FreeBSD drivers even WPA support and it works on my fairly new laptop (Its a common Intel card.... but the fact that it works is great).

The code is here:  http://cgit.haiku-os.org/haiku/tree/src/libs/compat

about 8 months ago
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SpaceX Testing Landing Legs On Next Falcon9 Rocket

cb88 Re:SpaceX (73 comments)

If their goal was to just land in the water that would make alot of sense... except they eventually intend to land on the ground which might possibly be cheaper since no retrieval from the ocean would be required and they don't have to worry about salt water corrosion.

I'm not sure why you get the impression that that soft touchdown in saltwater is the goal... it isn't it is just a safety precaution at this point.

about 8 months ago
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FSF's Richard Stallman Calls LLVM a 'Terrible Setback'

cb88 Re:Proprietary Software built on Open Standards (1098 comments)

Do you eve know what a false dichotomy is?! Because you are doing it...  It is about black and white thinking which is exactly what Open Source/OpenStandardsin Software vs Proprietary Software is... that sort of thinking excludes the thinking that leads to BSD and MIT like licenses.

You imply that there are only two choices ... Good Libre software and bad Non-Libre software... the fact is maximum efficiency in production of software requires some minor risks. Also you'll find that "developers" that get dragged into the legal issues of GPL and friends cease to be developers and become full time prosecutors. Taking GPL fully to heart.. is a major risk on it's own... you risk excluding yourself from development entirely to become a pure political element.

about 9 months ago
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Linux Kernel Running In JavaScript Emulator With Graphics and Network Support

cb88 It is impressive... but (177 comments)

it is not "fast, sandboxed VMs running in your users' browsers" it is just barely fast enough to be able to drag a window around and almost isn't fast enought to run a terminal. Performance bounces somewhere between 5-80Mhz equivalent depending on what you are running. I would imagine large chunks of contiguous code run reasonaly well but once it gets branchy performance plummets... its interesting to see how the varios demos perform.

about a year ago
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Robots Can Learn To Hold Knives — and Not Stab Humans

cb88 Nobody let it near a lobotomist (104 comments)

....it could get the wrong idea about how to properly handle knives around humans!!!

about a year ago

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