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User: Tomfrh

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  1. Re:Not really... on Experts Suggest Replacing Definition of Kilogram · · Score: 1

    Yes I am aware that 1 litre equals 1000 cm^3.

    But the number of water molecules you can fit into 1000 cm^3 depends on many things, and that is why I stated that there is no precise definition for a litre of water.

  2. Re:artifact on Experts Suggest Replacing Definition of Kilogram · · Score: 1

    The metre was once defined from a physical artifact, but it is now defined in terms of light.

  3. Re:Not really... on Experts Suggest Replacing Definition of Kilogram · · Score: 1

    There is no precise definition for a litre of water.

  4. Re:Bah on Experts Suggest Replacing Definition of Kilogram · · Score: 1

    I was waiting for that one!

  5. Re:Anyone Else? on Experts Suggest Replacing Definition of Kilogram · · Score: 1

    Defining the kilogram DOES define the gram.

  6. more than 5 anyway... on Study Points to Sixth Sense in Humans · · Score: 1

    Humans have more than 5 senses without having to resort to hocus-pocus. There was actually a new scientist article about it a few months ago.

    Examples:

    Motion sense, body temperature sense, pain sense, sense of your body position without looking, etc...

    Tom

  7. NAV sucks. on Symantec Antivirus May Execute Virus Code · · Score: 1

    I have finally dumped symantec antivirus. Repeating de-activations, despite having a genuine copy of the software. Persistant inability to remove viruses. Program bloat. Plus, NAV must be a target for all the virus authors.

    I am so over that software. It's too old and fat.

  8. Re:prediction on If The Problem Persists, Reboot The Car · · Score: 1

    ...yeah, and by 1980, 90% of cars were going to have Wankel engines!

  9. Re:2010... on If The Problem Persists, Reboot The Car · · Score: 1

    How about this for a compromise: they increased the mass AND the weight.

  10. Re:Cast? What cast? on Solar Super-Sail Could Reach Mars in a Month · · Score: 1

    NO, You said the beams can be thin, you did not say the beam can be comprised of thin elements. There is a major difference. I am fully aware than thin-gauge cross sections can be efficient. But you specified a thin beam, not a beam made of thin elements. (I don't even know why we are referring to them as beams, beams are bending members) I have compression tested many hundreds of thin gauge specimens and I know how they behave. First you say that members are the same in tension and compression in space, and now you decide to sneak in the requirement that the compression members must be tubular after all!! Of course they must be tubular (or some other efficient shape)!, thats what I've been saying all along.

  11. Re:Cast? What cast? on Solar Super-Sail Could Reach Mars in a Month · · Score: 2, Informative

    Slender members buckle under compression regardless of whether they are space or not. Gravity has little to do with a members compression buckling load.

    Members which 'hold things apart' as you put it, cannot be thin, because thin members buckle. Have you never pushed on the ends of a ruler and seen what happens? This buckling behavior happens in space too. Based on what you are saying, astronauts could not push on the ends of a ruler and make it buckle. The simply fact is that thin elements, or more specifically members with a very low section modulus, are not rigid in bending, and are thus not suitable as compression members.

  12. Re:Cast? What cast? on Solar Super-Sail Could Reach Mars in a Month · · Score: 1

    "The resistance to compression and resistance to stretching are virtually identical for metallic solids in space"

    Sorry, but that is wrong. The capacity of a tension member is limited by the net area of the cross section. On the other hand, compression member capacity is typically governed by the shape of the cross section, not the cross sectional area.

    As such, tension capacity and compression capacity are usually different for any given member (whether hemp, steel, magnesium or whatever). This applies whether you are in space or not...

  13. Re:Cast? What cast? on Solar Super-Sail Could Reach Mars in a Month · · Score: 1

    "Since the objects are in space, virtually any connection between two objects will be of virtually identical thickness/mass." Structural behaviour is much the same in space. You still can't push with ropes... Why would all elements be the same?

  14. Re:Interesting thing is... on Microsoft in 2008 · · Score: 1

    Well that is what packages are for... but still, the fact that this issue turns up about a trillion times a day on message boards shows what an issue it is.

  15. Re:Interesting thing is... on Microsoft in 2008 · · Score: 0, Flamebait

    That's the plain and simple truth. It's odd how many Linux people get angry at hearing it. Linux must lose thousands of potential converts because of the difficult software installation process.

  16. Re:Important points of a good manager on Geeks in Management? · · Score: 1

    "the PHB is actually a comic strip character"

    if only...

  17. Re:wrong on New Standard Keyboard · · Score: 1

    "studies show neither dvorak nor qwerty have an advantage. in fact they show almost any random arrangement of keys appears to work equally well." What studies?

  18. Re:Obvious reason on Closed Digital Cameras - Does Anyone Care? · · Score: 1

    I think you mean the Canon 10D, not the 20D.

    The 10D is the older 6 megapixel DSLR.

    The 20D is the newer 8 megapixel model.

    Turning a Digital Rebel into a 20D would be quite an achievement!!

  19. Men vs Women on Harvard Pres Says Females Naturally Bad at Math · · Score: 1

    I once heard that although men and women are roughly as intelligent as one another on average, the ditribution of intelligence is wider for men. As such there are more genius men than women, and more neanderthal men than women. As such men are both 'smarter', and 'stupider' than women at the same time! Of course this could be a crock, but I found it an interesting idea...

  20. Re:PeopleSoft on Microsoft Eyes PeopleSoft Customers · · Score: 1

    I didn't like it either. I used it for a while whilst working at a university. It handled all the student details/grades etc.

    It had stacks of dead menu items and broken features. They appeared like any other button or item, except they were inactive or did the wrong thing.

    The icons were cryptic too. The main icon looked like a dog or a plane depending on how you perceived it. It was in fact a dog. Why a dog you ask? Because it 'fetched' things for you.

  21. Re:Linux needs to penetrate on Does Linux Have Game? · · Score: 1

    Yeah yer right, but until there is an option to choose 'no options', Linux will be reserved to a certain user base. Most computer users HATE choice.

  22. Re:Linux needs to penetrate on Does Linux Have Game? · · Score: 1

    Well Linux isn't exactly inviting to the average Windows user. To start with there are too many linux distributions, and too many GUIs for the average user. Most users are put off by this.

  23. Re:Linux needs to penetrate on Does Linux Have Game? · · Score: 1

    Trust me, it's not just the lack of games...

  24. Re:Impact energy on 2004 MN4 Asteroid Odds Inching Up Again · · Score: 1

    I believe the sun might care to correct you on that last statement...

  25. Re:China is freer in some ways on China Closes 1,129 Web Sites · · Score: 1

    Wow, that ice town is great! I love the over-the-top lighting.