Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!


Forgot your password?

Comment: WCPGW (Score 2) 33

by cellocgw (#48652779) Attached to: South Korean Power Plants To Conduct Cyber-Attack Drills Following Hack

That's my first reaction: it's one thing to set up a virtual environment and pen-test it; rather another to test systems which are currently making sure nuclear plants are running properly and fully failsafed.
Maybe I'm just paranoid 'cause I'm reading "Wolves eat Dogs," but I sure hope they don't test on an operational plant.

Comment: Re:Even simpler (Score 1) 113

by cellocgw (#48642455) Attached to: Geoengineered Climate Cooling With Microbubbles

Drive less. Ban incandescent light bulbs. Recycle more. Eat a little less meat. Turn down the heat. Turn up the AC. All which can be done with existing technology.

In order:
1) How? Not possible without fixing public transit.
2) Dead wrong. Historically, every single advance in lighting (cheaper better etc) has led to more lights being on longer.
3) Recycle is the lamest of the 3Rs: "re-use, repurpose, recycle". Try at least to start at the top?
4) Or, eat more Long Pig :-)
5) Maybe, or just stop building noninsulated houses and living in extreme weather locations.


Geoengineered Climate Cooling With Microbubbles 113

Posted by Soulskill
from the or-we-could-make-an-ocean-sized-mirror dept.
Rambo Tribble writes: Scientists from the University of Leeds have proposed that brighter ships' wakes, created by reducing their component bubbles' sizes, could moderately increase the reflectivity of our oceans, which would have a cooling effect on the climate. The technology is touted as being available and simple, but there could be side effects, like wetter conditions in some regions. Still, compared to many speculative geoengineering projects, "The one advantage about this technology — of trying to generate these tiny 'micro-bubbles' — is that the technology does already exist," according to Leeds' Prof Piers Forster.

Comment: Re:Wrong conclusion: not "unintended consequences" (Score 1) 118

by cellocgw (#48548225) Attached to: How One Man Changed the Ecology of the Great Lakes With Salmon

Clearly you've just proved "spontaneous generation" exists. :-).

I would recommend that you reword your statement to "...were never intentionally stocked..." . It's quite possible that some species (or their larvae) hitchhiked on boats (as shellfish have been demonstrated to do).


Canadian Agency Drops Cases Rather Than Deal With New Requirements For ISP Info 29

Posted by samzenpus
from the forget-about-it dept.
An anonymous reader points out this story about what has happened since the Supreme Court of Canada's ruling on the warrantless disclosure of subscriber information to law enforcement from ISPs. "A funny thing happens when courts start requiring more information from law enforcement: law enforcers suddenly seem less interested in zealously enforcing the law. Back in June of this year, Canada's Supreme Court delivered its decision in R. v. Spencer, which brought law enforcement's warrantless access of ISP subscriber info to an end. 'In a unanimous decision written by (Harper appointee) Justice Thomas Cromwell, the court issued a strong endorsement of Internet privacy, emphasizing the privacy importance of subscriber information, the right to anonymity, and the need for police to obtain a warrant for subscriber information except in exigent circumstances or under a reasonable law.' The effects of this ruling are beginning to be felt. Michael Geist points to a Winnipeg Free Press article that details the halcyon days of the Royal Canadian Mounted Police's warrantless access. 'Prior to the court decision, the RCMP and border agency estimate, it took about five minutes to complete the less than one page of documentation needed to ask for subscriber information, and the company usually turned it over immediately or within one day.'"
The Internet

Security Experts Believe the Internet of Things Will Be Used To Kill Someone 165

Posted by Soulskill
from the time-for-a-ban-on-assault-internets dept.
dcblogs writes: Imagine a fleet of quad copters or drones equipped with explosives and controlled by terrorists. Or someone who hacks into a connected insulin pump and changes the settings in a lethal way. Or maybe the hacker who accesses a building's furnace and thermostat controls and runs the furnace full bore until a fire is started. Those may all sound like plot material for a James Bond movie, but there are security experts who now believe, as does Jeff Williams, CTO of Contrast Security, that "the Internet of Things will kill someone". Today, there is a new "rush to connect things" and "it is leading to very sloppy engineering from a security perspective," said Williams. Similarly, Rashmi Knowles, chief security architect at RSA, imagines criminals hacking into medical devices, recently blogged about hackers using pacemakers to blackmail users, and asked: "Question is, when is the first murder?"

Comment: Re:Yes... (Score 1) 145

by cellocgw (#48477121) Attached to: Scientists Develop "Paint" To Help Cool the Planet

I don't mind when people state clearly that they don't really understand the absorption & radiation equations, but it does kinda piss me off when these same people pontificate as though they did.

Here's how this new microlayer thing works:

First, it's highly reflective in the visible. That keeps a lot of energy from every entering (and being absorbed in) the building.
Second, it's highly absorptive in the IR. Due to the reciprocity laws, this means it's also highly emissive in the IR (and btw it's also NOT emissive in the visible since it's reflective there), but that doesn't matter. Why? Because the Black Body radiation laws show that the radiative emissions for objects in the 250 K to 350 K range, which pretty much covers buildings, people, etc., are very high in the IR and almost nonexistent in the visible range.

What this means is that most solar input energy is reflected away and simultaneously lots of local thermal energy is emitted away. win-win (at least if you like it cool).

The only problem with being a man of leisure is that you can never stop and take a rest.