Domain: ing.dk
Stories and comments across the archive that link to ing.dk.
Comments · 30
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Re:Isn't it obvious?
What is the point of this question?
Copenhagen Suborbital wants to move to a new place. The rent for the new place costs more than the current place, so they need to increase the members fee and/or get more members. "[Citation needed]"? Ok... In danish, sorry...
One way to get more members is to get people talking about Copenhagen Suborbital and the point of this question is cheap advertisement. Plain and simple.
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Re:Links !
The Danish experiment was the subject of extended debate on the Danish Engineer's Weekly newspaper (Ingeniøren). Many readers attempted to replicate the experiment, but success was extremely limited. Even the school itself did the exact same experiment again with the opposite result:
"Faktisk kan man her til aften måle at karsen er højst netop lige ud for routeren. I fredags kunne vi se at karsen længst fra routeren var lidt grønnere - end tæt på routeren. Men her til aften vokser den helt jævnt over hele linjen."
"Actually it is possible this evening to measure that the cress is tallest precisely right next to the router. Last Friday we were able to see that the cress furthest away from the router was slightly greener - than close to the router. But tonight it grows evenly along the whole length."
You can look for yourself here: Cress seeds germinate excellently despite mobile device radiation which also has links to the other articles, including the first article which started the debate.
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Re:Incomplete science...
Since I submitted the story, the full report has been made public, and the biology teacher involved in the experiment has commented on various details.
Based on information from these two links, I'll try to answer your questions (my translations).
-Wifi and GSM are on different bands so why speculate cell phones could also have the same effect?
The report doesn't explain this. It goes from "We want to study the effects of radiation from cell phones" in one paragraph to "we'll be doing this by [...] cress seeds placed near Wifi hotspots or not" a bit later. The teacher notes "For newer 3G or LTE connections, the difference [compared to AP frequencies] is minimal".
-Did they repeat the experiment using the same plant seed type more than once?
They used seeds from several bags, mixed together and then divided in 12 lots.
-Did they note the temperature, humidity and sunlight available in each room at regular intervals or used any data logging equipment?
Not according to the report. From the teacher: "windows of similar size and both facing south" and "computer controlled temperature (18 deg. Celsius)".
-What kind of rooms, and were they in the same home? Were they the students bedrooms or what?
The report doesn't say. From the teacher: "Access control: only a select group of people can access the 'depotrum' used for the experiment". 'Depotrum' could mean a room used by janitors, to keep books etc.
-Were both testbeds receiving the same amount of sunlight for the same amount of time?
The report says "both windowsills [?, the lowest part of the window frame, facing into the room] were facing south, so we could ensure that all plates were receiving the same amount of sunlight". See note from teacher above.
-Did they try other plant seeds? Or buy the same plant seeds but from different vendors to compare?
No other plant seeds were tested. It is not clear from report or teacher if the bags mentioned above were from the same vendor.
-Did they try to repeat the experiment with the router off to isolate the possibility the rooms environments played a role?
The report doesn't mention this. According to the teacher, they did run the experiment twice, not to test differences between the rooms, but to test if network traffic played any role. The first run was made with the AP only announcing ESSID, the second run had the laptops pinging each other [constantly, I assume].
They used roline wireless routers for the experiment.
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Re:No reproduction
For anyone who actually wants to reproduce the experiment, a teacher from Hjallerup posted a detailed description of the experiment setup in the comments of the second FA. It's in Danish, but Google Translate should be able to make some sense of it.
At the very least, it seems to have been done a lot more thoroughly that I had first suspected. I'm still sceptical that the results will be consistently replicated, but the experiment as described is of high enough standard to warrant an attempt.
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Re:Water
There was an extensive discussion on ing.dk (Danish periodical for engineers). See e.g. Lad vandet løbe og spar penge
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Re:There's always a downside
They are some examples of turbines failing and throwing pieces out at a long distance, e.g. this.
But this is a known risk. At least in Denmark, big turbines are built at sea or at a field with a big safety distance to the nearest houses. It's probably also relatively obvious that it's going to fail if you're nearby. In the above story, the authorities had sealed off the area already.
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Re:not bad
They reached 2.8km according to this article (in Danish).
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Re:Friday is the new Thursday?
From their blog updates (in Danish) here.
Weather in Northern Europe is inherently changeable (and shitty most of the time) which is why they are operating with a launch window June 1-5. Also, the guy maintaining their website is busy preparing for launch. Finally, Sputnik got delayed by two days waiting for calm seas to cross the Baltic.
Your next question will be "So why is the launch window so narrow?" and the answer is that the original launch window got shortened by the navy who came back a short while ago and went "Umm....guys...you can't launch rockets next to our NATO exercise beyond the 5th of June" even if they had booked the launch window months ago.
They decided to go ahead anyway. -
Re:Such linking skills!
In fact, this was the video the co-founder of Copenhagen Suborbitals, Peter Madsen, linked to himself.
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Re:Actual Picture
The news agency used a stock photo. The actual photo (clickable) is here [www.isna.ir].
and here http://ing.dk/artikel/106472-engelsk-politi-brugte-en-foererloes-drone-under-en-anholdelse?utm_medium=rss&utm_campaign=nyheder
and here http://www.denverpost.com/news/ci_13608730?source=rss
and here http://www.gjfreepress.com/article/20091021/COMMUNITY_NEWS/910209967/-1/RSS01
and especially here http://www.draganfly.com/uav-helicopter/draganflyer-x6/
In Iran, we don't have actual photos like in your country. -
Re:Nice to get this from slashdot
Det blev faktisk dækket af Ing.dk i går aftes: http://ing.dk/artikel/117178-post-danmark-klar-med-sms-frimaerker
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Re:Nice to get this from slashdot
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Re:Bad puns aside...
Mod parent up!
You can actually produce energy yourself, ship it off to the grid, and the the kWhs will be deducted from your bill (in Denmark). As long as you produce less than you consume, this amounts to a pretty good price for the power. With PV panels you can break even in 10-14 years. Poul-Henning Kamp did the investment recently:
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Re:On the sea, heading for Bornholm
New pix - rocket at sea -> http://ing.dk/gallerier/125079
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On the sea, heading for Bornholm
Currently the sub, launch platform, rocket and all is well underway from Copenhagen to Bornholm. Info here (in Danish) http://ing.dk/artikel/111481-fra-koebenhavn-til-nexoe-opdateringer
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Re:I love these guys
A gallery from saturdays launch of the platform: http://ing.dk/artikel/111189-se-den-danske-rumraket-blive-soesat
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More info
More pics from saturday here: http://ing.dk/artikel/111189-se-den-danske-rumraket-blive-soesat
They have been running a blog since the beginning on ing.dk (in danish only, unfortunately). Openness is key to the project, that's how they attract the donations that make up all funding.
The astronaut sitting upright is a key part of the design. The spaceship is 60cm in diameter. If he lies down the spaceship needs to be much wider, around 2 metres, and then require a much larger booster rocket.
They aim at a constant acceleration of 4G, which is not very much for a rocket, but this is to make it liveable in the upright position.
Another key part of the design is that it is a hybrid rocket, which has high power, is controllable, and is almost without dangers compared to traditional liquid and solid fuel rockets.
The fuel is actually some rubber substance (not entirely unlike tyre rubber), with liquid oxygen being pumped through to make it burn at high temps. Totally harmless substances, except when you ignite them, produces great thrust, and is even variable, so they can just turn it off if something goes wrong.
Until now they have only been doing static booster tests (all successful). The upcoming launch is the very first flight test. They only aim at going to some 20 km's altitude. The eventual goal is to replace Sven the test dummy with Peter Madsen, and thrust him to above 100 km's - and get him down safely.
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Re:Much ado about nothing
Modern wind turbines don't run in phase with the grid, they convert with power electronics. This means that they are a great stabilizing factor on the grid in the short term, especially if the load needs power factor correction.
Older wind turbines were indeed troublesome for the grid because it is difficult to keep something powered by the wind rotating at a completely steady speed. Luckily this is no longer necessary.
Anyway, two coal fired blocks are supposed to be closed in Denmark this year according to this article. They have not been replaced by new coal-fired capacity (and that wouldn't make sense anyway, as they are fairly modern and quite efficient).
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Re:Reverse Engineered Microsoft DOS???
Actually there is currently a 2 man team working in a garage in Denmark to produce a rocket capable of safely taking a person into space (and presumably back somehow). They have completed small scale testing of their engine (video on the link below) and are currently building the real version. Article in danish: http://ing.dk/artikel/98441-byggeriet-af-danmarks-stoerste-rumraket-er-begyndt
Also a danish team of about 8 people are participating in Googles Lunar X price: http://www.msnbc.msn.com/id/28258165/ -
Some information
Danish website ing.dk (run by the danish union of engineers) says in their article, that the hydrogen is store as ammonia in pellets made of seasalt. The hydrogen is released by way of a catalyst (they dont explain how or which catalyst is needed). But i suppose this means the pellets are highly reuseable. If you can read danish, theres a lot more here: http://ing.dk/article/20050907/MILJO/109090025
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You'd have to be really stupid......to not realize this. Look at the casualties:
- #3 Finn bank Sämpo
- German Post
- The british coastguard
- Korean postal
- The CAT / MR scanners at a Danish hospital
These are some of the large-scale operations that were affected by the worm, some of the frantic preparing for the worm strike. I have never, ever believed for a second that the TCO for Windows is lower than e.g. Linux of BSD, past the first month of switching. Even with higher sysadmin costs, the overall increase in productivity equals this and then some. Christ, potentially sick people had to reschedule their CAT / MR exams because of a fucking Microsoft Worm (TM)?
How much more are we willing to up up with? I made two switches, first from Windows to Linux and then from Linux to Mac. The only thing I regret is not switching earlier.
Today, my employer lost 25 USD, since an article I wrote disappeared when Word crashed and I had to re-write it for one half hour. It seems the defaut Word behaviour in custom OEN installs that our IS get is to NOT autosave for recovery due to "performance issues"
Lower TCO my ass. -
CT scanners at major hospital affected
The danish newspaper Ingeniøren reports that the Sasser virus attack affected the danihs hospital, Herlev Sygehus. The hospital had to cancle scheduled CT-scannings because the scanners crashed. Also MR-scanners were affected, though no scannings were canceled.
"We do actually have a firewall, but aparently it hasn't been updated enough" sais radiographer Jan Bovin. "It was the scanners running Windows 2000 and XP that were affected, the MR-scanners running Linux had no problems," he sais.
The original story is here (in danish).
It appears that the consequences of the Microsoft monopoly are getting worse. Are there any linux-run hospitals?
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CT scanners at major hospital affected
The danish newspaper Ingeniøren reports that the Sasser virus attack affected the danihs hospital, Herlev Sygehus. The hospital had to cancle scheduled CT-scannings because the scanners crashed. Also MR-scanners were affected, though no scannings were canceled.
"We do actually have a firewall, but aparently it hasn't been updated enough" sais radiographer Jan Bovin. "It was the scanners running Windows 2000 and XP that were affected, the MR-scanners running Linux had no problems," he sais.
The original story is here (in danish).
It appears that the consequences of the Microsoft monopoly are getting worse. Are there any linux-run hospitals?
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And confirmed by Microsoft!
In this Danish article, Microsoft confirms that the GPL isn't compatible with their license. I sincerely doubt this is a coincidence.
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Hobbyist submarine accident
Peter Madsen successfully operated his homegrown 1-man submarine in the harbour of Copenhagen last fall. It has been submerged for 1½ hour, and gone to a depth of 10 m.
That came on the heels of an accident where his submarine was heavily damaged by crashing into a bridge. Don't blame Peter though - it was carried on a truck! (danish)
During the test this fall the only problem was paranoid police boarding the sub (danish) to assure that Peter was not an activist intending to disrupt the EU summit. -
Hobbyist submarine accident
Peter Madsen successfully operated his homegrown 1-man submarine in the harbour of Copenhagen last fall. It has been submerged for 1½ hour, and gone to a depth of 10 m.
That came on the heels of an accident where his submarine was heavily damaged by crashing into a bridge. Don't blame Peter though - it was carried on a truck! (danish)
During the test this fall the only problem was paranoid police boarding the sub (danish) to assure that Peter was not an activist intending to disrupt the EU summit. -
Nowhere near 50% wind power in .dkI don't know where the 50% figure comes from, but it is certainly not official Danish policy.
We're currently producing 10-15% of all electricity in Denmark with wind-energy and nobody wants that number to increase currently due to the problems we are facing.
The main problem is that we actually get so much wind-generated electricity during a storm that we cannot get rid of it, this unbalances the power-grid and results in voltage and frequency instabilities.
The secondary problem is that you also need electricity when the wind does not blow. This could mean keeping large centralized power-plants around, paying a lot of maintenance costs, waiting for the wind to die.
Various suggestions abound, and the Engineers weekly newspaper here in Denmark has been the home of a fierce debate for the last couple of months about the merits of these and wind-generation in general.
The fact that all sorts of micro-plants and co-generation is popping up like mushrooms is in fact a very interesting problem for the electrical grids: How do you balance supply and demand, when you have almost as many suppliers as consumers ?
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A bit of technical info
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Re:Your guys are missing the point...There was a series of articles in the Danish periodical for engineers, Ingeniøren. It is describing how direct current is the future, and how effect-electronics makes it possible. It is possible to do a DC-to-DC transformation with very little loss.
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Re:Damn it looks like it is slashdotted :(
Doesn't look like google have all that much of the site cached.
You can get a bit more info about the project on this page but unfortunately it's in danish.
It appears to use an Intel 386EX embedded CPU, a 4Mbyte Prom, 64Mbytes DRAM (in a standard simm), and a 10mbit ethernet interface.
I'm unable to get any idea of how big this thing actually is or how complex it's pcb is well from looking at diagrams i'd speculate it's about 6x4 inches...
If only i spoke danish :)