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


Forgot your password?

Comment: Re:P!=NP (Score 1) 701

by kzieli (#32740372) Attached to: Knuth Plans 'Earthshaking Announcement' Wednesday
Actually it doesn't seem to matter how old you are, but how long you have been working in the particular field. In pretty well anything it takes 10 years of concentrated practice to reach your peak. That is about the time you would expect someone to do their best work before starting a gradual decline. The crux here is not brain age but specific experience. If you don't have it you are more likely to ask the dumb questions that lead to novel answers, and if you do have it then you won't.

Comment: Re:So...what's the next stage? (Score 1) 154

by kzieli (#32599274) Attached to: Inside Australia's Data Retention Proposal
I went through their policies recently and really couldn't find anything I actually object to. Dropping the voting age to 16 seems to be about their most controversial policy position. And on balance I agree with it. Also talking about going back in time. The Greens want to cancel Hecs (higher Educations Contribution Scheme) Debts and make Universities Free again.

Comment: What about printers (Score 1) 476

by kzieli (#32519072) Attached to: iPhone 4's "Retina Display" Claims Challenged
If you only need 300 then why are printer manufacturers bothering to make printers that go to 1200 and higher? The answer seems to be because most people can tell the difference between somthing printed at 300dpi and somthing printed at 1200 dpi. therefore the average person can see more then 300dpi Heck I have a book which was printed using default latex setting (yes its a Prolog book and it really was published using latex) and it is extremely hard to look at. The effect is somewhat like looking at a CRT monitor with too low a refresh rate seriously it gives me the same kind of headache.

Comment: Re:Not again (Score 1) 575

by kzieli (#30220366) Attached to: New Theory of Gravity Decouples Space & Time
Its a standard Limits thing where as the speed of motion approaches zero some of the components of the mathematics can be ignored as they are so close to zero (or 1 , I forget which) that they make no noticeable difference.

At another level the theories are radically different. In Newtonian physics Mass is an intrinsic property that does not vary. every particle has a set mass and that's it.

In Relativistic theory Mass varies with speed (they increase together). Hence you end up with ideas like rest mass (the mass something has if it is standing still). I believe that this is why only photons can travel at the speed of light (they have a zero rest mass) anything else ends up having infinite mass if accelerated to this speed, which takes infinite energy and is hence impossible.

These two concepts of mass are radically different from each other from a philosophical standpoint. That the maths of one can be derived from the maths of the other is somewhat deceptive.

Comment: Re:Summary of /. Reaction to Proposal (Score 1) 1124

by kzieli (#29524967) Attached to: Firefox To Replace Menus With Office Ribbon
Actually it has changed. Neither you or I would have much luck getting a model T Ford moving. Yes it has a steering wheel but the entire transmission and breaking system was completely different. http://en.wikipedia.org/wiki/Ford_Model_T#Transmission_and_drivetrain note the lack on an accelerator. Your only speed control in the thing was slow and fast!

Comment: What is the problem exactly? (Score 1) 863

by kzieli (#29168019) Attached to: "Smart" Parking Meters Considered Dumb
Other then slowly loosing your ability to walk I don't see what the problem is. Most parking meters in Sydney work in exactly this fashion. I've actually never seen the old style meter per car system used anywhere. About the only parking meter system that has annoyed me was a numbered bay system where you have to walk up to the machine and tell it which pay you are in and then pay the fee. And if you accidentally pay for the wrong bay, well then it sucks to be you.

Comment: Re:I don't know, but... (Score 1) 494

by kzieli (#29127301) Attached to: Is Typing Ruining Your Ability To Spell?
The whole point is that when you lean to touch type you end up learning how to type words mechanically. Instead of the being remembered as a sequence of letters you start remembering it as a sequence of muscle movements. As I type this I am not looking down at the keyboard. And yet I don't actually consciously remember where the letters are. Well OK. I know querty, and asdf but I can't off the top of my head tell you what the last three letters in the third row of the keyboard are, or where exactly the 'v' is. Yet I am still able to type vision without having to look down. So yes touch typing is a different kind of memory and I could see how the ability to spell on the keyboard would not transfer to the ability to spell when writing, or trying to explicitly spell words by saying the letters.

Comment: Re:Cause/effect doesn't matter. (Score 2, Interesting) 438

by kzieli (#28951859) Attached to: Psychopaths Have Brain Structure Abnormality
Its simple enough. Eventually we will find the biological basis of every opinion you hold. Then we will find how to correct any abnormalities. Once we have done that their will be an end to crime, an end to decent. Oh yes elections won't be necessary either as the clinical records of your last brain scan will clearly indicate who your preferred candidate is. And if you don't like it we will change your mind : )

Comment: Re:This is a great breakthrough... (Score 1) 406

by kzieli (#28860559) Attached to: Transparent Aluminum Is "New State of Matter"

This is a great breakthrough. This means that we can now wear full face tinfoil hats for even more protection without risking to bump into something anymore. Thanks that tinfoil hats are actually made of aluminum nowadays ! ;-))

for an estimated 40 femtoseconds. Their is also the whole nearly invisible to extreme ultra violet radiation, which is not exactly in the visible spectrum.

Never say you know a man until you have divided an inheritance with him.