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Comment: Re:How is maintenance performed? (Score 1) 146

by aaarrrgggh (#48936019) Attached to: Former NATO Nuclear Bunker Now an 'Airless' Unmanned Data Center

Logically they would go for something around 4%O2/96%N2. SF6 is ozone depleting and controlled by epa even for medium voltage switches.

You can survive with low exertion levels down to around 2.5%; with a non sealed mask an oxygen or even compressed air bottle would be plenty to get you to a comfortable PPO2 at 8,000 feet.

Comment: Re:New ATMs - loads of solutions (Score 1) 361

by aaarrrgggh (#48931535) Attached to: Why ATM Bombs May Be Coming Soon To the United States

The cash is in cassettes inside the vault, so the ink needs to be in the cassette. I don't think the cassettes are physically large enough to do that, but if they are due packs are already integrated.

But, other factors are going to limit how successful the attack is in a modern bank in the US. There are a number of defense in depth features that should get people caught. Surprised it works in Europe.

Comment: Re:Yes, the IoT is coming... (Score 1) 251

by aaarrrgggh (#48929757) Attached to: One In Five Developers Now Works On IoT Projects

I think you have that wrong. They will connect via an encrypted tunnel over port 443 to an AWS cloud instance to log all your activity and provide an "interface" for you to use anywhere you want. Should you decide not to use that interface, your Thing is a Paperweight. But they might still be able to display advertising on it...

Comment: Re:But you do need it (Score 1) 297

by aaarrrgggh (#48926765) Attached to: The iPad Is 5 Years Old This Week, But You Still Don't Need One

Part of it is where you use the device rather than how. This morning, I was quite happy to be able to use my phone to VPN to the office and SSH to a server to check out why someone else was having problems on the VPN... while still lying down in bed. Right now, I am happy to be able to type this on my tablet while taking a dump. Had the tablet been bedside this morning, it would have been much easier and faster to use it to check server logs. But, the laptop would be less useful lying in bed.

I have a few great apps that make fantastic use of the tablet, and I am always happy to have access to them. I much prefer going to meetings with a man-purse than a laptop bag, so I take a little performance hit on taking notes. The cellular access makes up for it though, as I can access the samba server and bring up documents remotely to display in the meeting.

At home, I only reach for my laptop if I need word, excel, or sketchup. My wife in contrast usually "works" from her desk, so she is more comfortable with the laptop, even when on the couch.

Comment: Re:Why use a cable? (Score 1) 247

by aaarrrgggh (#48926431) Attached to: Engineers Develop 'Ultrarope' For World's Highest Elevator

You can make a group of 10-15 40,000 square foot floor plates operate with a substantial amount of recirculated utilities-- bring up just natural gas and you have a source of electricity, heat, and water; just send down black water or even sludge from sewage. It starts to get cost effective today at about 1MM square feet, but when you factor in the cost of risers and pumping it might start to scale down. The linear motor elevator concept, with multiple independent cabs in directional hoistways (up/down) reduces that impact, and currently ultra tall buildings do not plan on evacuating everyone to the ground via stairs, so that isn't an impediment.

Structurally, much over 800 floors would be quite difficult as the concrete to support the gravity load of the building would start to take up half the floor area at the base, but stepped buildings can assist with that-- 10x floor area at base might give you a reasonable useable area. Wind or seismic loads would need to be dealt with by active systems... Not sure how well that would go over though.

Comment: Re:Why use a cable? (Score 1) 247

by aaarrrgggh (#48920953) Attached to: Engineers Develop 'Ultrarope' For World's Highest Elevator

Agree, but a hybrid approach is likely the most efficient. Get 50% of the power/braking from the rope and 50% from a cab-mounted motor. Batteries aren't needed; just regenerate into the rails.

The other interesting challenge is water. Every 200m you need a pressure break because the welds in the pipe reach pressure limits. An extremely tall building needs to deal with these issues cost effectively, and efficiently-- think water treatment every 40 stories to recover grey water, treat potable water, recover condensate, etc.

Hell, from an IT perspective you reach the limits of multimode fiber risers pretty quickly.

Comment: Re:Make Yourself Known (Score 1) 65

by aaarrrgggh (#48893959) Attached to: Smartphones, Tablets and EBay Send SkyMall To Chapter 11

I actually did. Granted, it was once, and 10 years ago, and I price checked when I got home. It was actually something useful that was difficult to find elsewhere at the time-- a curved shower rod.

I will miss sky mall. It's goofy stuff helped inspire a bit of creativity or at least make me smile on a flight. Just can't see how it would be possible for them to have an attachment rate of even 0.02%, two orders of magnitude than conventional advertising.

Comment: Re:And that people... (Score 1) 329

by aaarrrgggh (#48833451) Attached to: Steam For Linux Bug Wipes Out All of a User's Files

I'm proud of my SnapBack-esque pull backups set on a NAS drive. The NAS has backup priveledges on the laptops, and pulls data via rsync. The laptops have no access to the NAS drive except for ssh. Provides linked snapshots hourly, daily, weekly, and monthly. Just need to get a second drive running in a few months.

Only challenge is that since the laptops are OSX I don't copy the resource forks, but that could be addressed if I really cared...

Comment: Re:A few answers from the original AC (Score 1) 403

by aaarrrgggh (#48824519) Attached to: Ask Slashdot: Migrating a Router From Linux To *BSD?

For item 4, you are still not addressing the vulnerability issues that adding Samba and a web server add to the equation.

Personally I am in a similar situation with this part, and will eventually get "extra" functions I have the router doing over to a NAS drive. (My NAS drive just needs to do pull-backups via rsync.) For Transmission, I personally would slap it on a Raspberry Pi or NAS drive in a DMZ off the router.

Comment: Re:Lost its way. (Score 1) 314

by aaarrrgggh (#48822795) Attached to: Radio Shack Reported To Be Ready for Bankruptcy Filing

They failed to get on the Maker trend for sure, but the reason is simple-- there was better margin in phones. 20 Years ago they also failed to embrace the Internet; their catalog was originally a big part of their success and brand identity, and they lost that. Many of the products they carry are crap, and they dedicate 20% of the store to fairly obscure products.

I wish a SparkFun or Adafruit could take over Radio Shack in the retail world and be successful, but I can't imagine a scenario where that would work financially. Is there someone similar for Ham radio equipment and audio?


Seen on a button at an SF Convention: Veteran of the Bermuda Triangle Expeditionary Force. 1990-1951.