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David Walland

David Walland

Kommentarer

Does battery life suffer?

I had the impression that using fast recharging has a seriously deleterious effect on the battery life. Since batteries are so expensive that would be a very considerable negative cost to be added in on the costs. I'd be interested to hear other's views about this. Interesting though...

14. apr 2011 14:23Sådan lader man en elbil op på 20 minutter

The Long Term Costs

While it seems that there can be no certainty that the crisis in Fukushima is yet resolved, there are some other certainties which we need as a world to be thinking of now. The immediate costs to the whole of Japan for resolving the clear up of these reactors will be very high, even in compariso...

16. mar 2011 16:28Livedebat: Frygt for kernenedsmeltning i Japan

Check and pick up the tab? Madness!!

I find most disturbing of all the reported fact that there is no requirement for the buildings' owners to actually check. That some are doing so, despite the costs that they can can clearly expect, should be praised very highly. That the Danish Government doesn't require such testing ...

25. feb 2011 11:02Højhuse i Brøndby fyldt med gift

Hmmm...

If I watch as the hypodermic syringe is inserted, I faint!!! On the other hand I am a volunteer at the Newcastle Dental School and regularly have Dental Students stick needles in my mouth without being able to see what's happening. I would contribute the following to this discussion: Prope...

11. feb 2011 15:12Ny smerteforskning: Det gør mindre ondt, hvis du ser lægen stikke

Remember 1918

Before discussing the severity of influenza can I suggest the everyone looks up the terrible influenza epidemic which began at the end of the Great War in 1918. Influenza can be a dreadfully dangerous disease to all groups and ages but it's severity varies from strain to strain. To have a si...

10. feb 2011 12:16Ny vaccine beskytter mod alle typer af influenza

Predictors and causality

One of the serious problems to grasp with studies such as this is that the statistics say absolutely nothing about how the predictors link with the result. They merely show that a relationship exists. The previous comments show this misunderstanding quite strongly. Our natural expectations of ...

10. feb 2011 11:25Livsstilen bestemmer din alder - punktum

Fascinating...

I really started to learn Danish in my 40th year ( 2 years' of evening classes in England really don't count - we just learnt each other's mistakes). I'm in my 60s now, have limited contact with Denmark now (my Danish wife has even less) but strongly remember the difficulty o...

20. jan 2011 14:38Forsker til læserne: De asiatiske tal er vores forbilleder

Re: Lav effekt?

[quote]Er det bare mig der synes at en effekt på 0,2 megawatt egentlig forekommer mig at være en ret høj effekt, Jeg synes også at det ser mærkeligt ud, men der står også MW i linket. Jeg har dog svært ved at tro det.[/quote] I too thought this a very high level, so went and read the paper, ...

23. dec 2010 10:21Forskningsgennembrud: Nu kan laserlys omdannes til lyskugler

Not really a translation error

If you read the "blurb" under the images on the side of the NASA information they too call these "bubbles of gamma radiation". So the suggestion that this is a translation failure is not really fair. Instead you need to understand that this is merely repeating a "short hand" description in the ...

11. nov 2010 16:20Enorme bobler af gammastråling spys ud fra Mælkevejen

But do we know...

Many of these systems are showing us gas giants close in to the star, or at nearer distances than in our solar system. I wonder how that wiil affect their colour and this simple test?

11. nov 2010 16:03Planeter opdeles i nyt farveskema