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Best skywatching equipment at my disposal:

Hafnia Re:Friends have better gear (201 comments)

If you want image quality nothing beats Hubble. And there are many more resources on-line, so you have plenty of options. For a lot of people though, knowing that the photons your eyes see through a telescope, is actually coming directly from the object you observe, means something. It makes it more "real" and interesting. I guess thats the only reason there is still a market for telescopes to consumers. I just bought a tracking telescope with a celestial object database and very easy calibration for just about €350,- ( USD 480,-) But it's winter where i live, so i won't be trying it out until early march or later.

about a year ago
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Is Earth Weighed Down By Dark Matter?

Hafnia Re:Dark matter = hypothetical (247 comments)

No , as i said we should keep researching. But You kind put it out there that MOND and DM are on equal footing ... and I just disagree. I think DM is a way better candidate for explainig observations than trying to tweak relativity to keep giving exact predictions, as it has done for a century, while also making it explain some of the observations that would be so much simpler to explain by a yet undiscovered family of particles. And then I don't find it hard to belive that theres stuff out there we are not able to detect at the moment.

about a year ago
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Is Earth Weighed Down By Dark Matter?

Hafnia Re:Dark matter = hypothetical (247 comments)

True , but we know that every test of relativity has strengthened it, not even once have we gathered data that contradicts it. So we need to modify it in a way that doesn't mess with it's match on all those measurements. Thats hard. And I just think it's quite plausible that there are particles out there we are not yet equipped to detect, and there are many observations that can be explained by dark matter without disagreeing with relativity. But I agree we should not consider the case closed.

about a year ago
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Is Earth Weighed Down By Dark Matter?

Hafnia Re:Why doesn't dark matter collapse on itself (247 comments)

Probably because dark matter doesn't interact with itself. When normal matter hits other normal matter it will be slowed down and eventually the stuff gets bigger and bigger. But dark matter doesnt hit anything, so even though it's gravitationally attracted to other dark matter particles they will fly right through each other. Therefore, i think, it won't be concentrated enough to form black holes.

about a year ago
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Sweden Will Deliver Pirate Bay Co-Founder To Denmark

Hafnia Re:um.... (56 comments)

We do have all of that ... Skype was actually developed by a Dane and a Swede, but your ignorance is forgiven since you are american. The original investigation was carried out by swedish police who found the ties to the crime in Denmark. A Swedish judge has decided that the evidence is strong enough for a trial in Denmark. What he is accused for is a crime in both Sweden and Denmark and the offended part is a danish authority. The penalty is also similar in both countries so it makes sense the trial him in Denmark. He does have the right to stay silent, but he also has the right to defend himself, and compared to the cost of the investigation i don't think a couple of policemens salary and some plane tickets are going to matter much.

about a year ago
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Quantum Teleportation Achieved Over 16 km In China

Hafnia Re:Wait, does this mean... (389 comments)

I'm glad somebody without a PhD took the time to explian in simple terms - now it actually makes sense !

more than 4 years ago
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What Free Antivirus Do You Install On Windows?

Hafnia Re:I dont use... (896 comments)

Basically, my advice to people who are relatively savvy is not to bother with antivirus. Once antivirus detects anything, it's generally too late. AV can be useful for people who have _no_ clue, but they're bound to get infected anyway sooner or later.

Wrong , if the AV software reacts it's normally because it's actually doing it's job and preventing infection. One or two times a year NOD32 informs me of an infected file and i let it delete it. At work i often get notifications from Trend Office Scan that a couple of files on some users computer have been infected,detected and deleted. So in my experience AV software is mandatory ..... even on my own machine, and i believe i know what i'm doing. What i don't understand is the obsession with free ..... nothing is free, really. I don't mind paying an unsubstantial amount of money for beeing protected against loss of data , and more important for me , the hassle and time involved in a format and réinstall.

more than 4 years ago
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Best Home Backup Strategy Now?

Hafnia Re:SSD (611 comments)

It's not very scientific to take your own personal experience and expect the rest of the world to get the exact same results ! There is probably a very big variation in the quality of the CD's and DVD's out there !

more than 5 years ago
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Best Home Backup Strategy Now?

Hafnia Re:SSD (611 comments)

True ... only it was Tiger Woods 09 , and somebody lifting the console from the floor. The disk was seriously damaged !

more than 5 years ago
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Pushing 800W of Wireless Power at 5 Meters

Hafnia Re:Not great for everyone (397 comments)

Well ..... liquid helium is not a gas !

about 6 years ago
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Pushing 800W of Wireless Power at 5 Meters

Hafnia Re:Not great for everyone (397 comments)

When you bring ferromagnetic metal into an MRI the really important issue is mass. Even a 1.5T won't pull very hard on a small mass object. But it will throw a pallet lifter around and hold so strongly that it's almost impossible to get loose. You will have to ramp down the magnet which will weaken the strength of the magnet(Bad , but not fatal).If there is a person in the scanner they will push the quench button - this is much worse for the magnet and very expensive since all the helium boils off and has to be replaced. And helium is very expensive ! But anyway .... i've been near 1.5T with an ordinary screwdriver and it's very strong - but not impossible to hold - i was not in the isocenter though, and i'm not certain i would be able to keep holding it there. But small grains of magnetic material , like in a tattoo is generally not an issue.

about 6 years ago
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Windows Vista Service Pack 2 Expected Tomorrow

Hafnia Re:Beta SP? (149 comments)

I do .... and i bet i'm not alone. My primary function as an engineer is keeping MRI and CT scanners running , i work for a private company with 40 employees. So our total IT staf is 1 full time Administrator and me. I do support and administration in an office of 15 people besides my real job. A lot of firms have this size and don't have the resources to micromanage PC's. Anyway ... we are still on XP and not even beginning to consider Vista , but we might consider Redmonds next offer - by that time i guess we have to phase out XP ... unfortunately !

about 6 years ago

Submissions

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How do you handle abuse ?

Hafnia Hafnia writes  |  more than 7 years ago

Hafnia (590482) writes "I have an older machine running Debian to serve my Squeezebox and FTP. It's open to the internet for ssh and ftp. I don't really care or worry about it, but every once in a while i check the authlog and every time it's crowded with failed attempts to get in ! What do you do? Ignore it ? Report it ? Attack it ? And what should i do ? I'm fairly competent with computers , but not a pro sysadmin. Does it make sense at all to report it ?"

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