Quote from jibber :

As always, you can't take a joke.

so your insult was a joke now? thats how youre gonna try to play this?

Quote from jibber :

You better be careful, he's an electrical engineer with special skills in IT (for all we know he could be developing toasters for siemens).

great so your response is pure idiocy and i really cant be bothered to waste my time on dadge
my work is done here

Quote from majod :

If you're electrical engineer it can't be hard for you to determine which is better in here:

thats a ridiculuous example that has no relation to reality and completely ignores that neither the red nor the pink signal is in any way remotely close to what the output of your cdplayer looks like

Quote :

That's why people prefer tubes - cos they get you more natural sound, not so "artificial". But playing vinyl with reasonable quality sound system you get much better results than with digital media.

a) distotion isnt natural
b) no you dont

Last edited by Shotglass, Sun 8 Jan 2012, 12:38.

you really just have to look at the kind of stuff thats marketed to audiophiles to see how much science their reasoning for improving their setup is based on

Quote from jibber :

I'm not sure if it's really the case with the preamp, but i've read about it in several places and was told the same thing by people in stores (i didn't buy it at media markt :tilt. There's lot's of audio stuff you need to break in first... speakers, etc. But yeah, you might be right about the preamp.

yes but speakers and needles have mechincal parts that change behaviour through wear preamps (with the possible exception of tube amps) do not

Quote :

The other part about digital recordings and records... I guess you've never heard a good record. A good record will sound A LOT better than a CD.
http://electronics.howstuffworks.com/question487.htm

"A vinyl record has a groove carved into it that mirrors the original sound's waveform. This means that no information is lost. The output of a record player is analog. It can be fed directly to your amplifier with no conversion."

... yeah
first of all im an electric engineer who specialised in information technology so my understanding of digitalization quantization noise etc is quite a lot deeper than that... rubbish article
secondly thats just wrong on so many levels completely ignores all the limitations that using a mechanical system brings with it and the years and years of research in what amount of signal quality degradation is audible and what isnt
also no a record doesnt just contain the audio signal as is... for one theres a ton of equalisation going on

Quote from Racer X NZ :

Free energy may simply be utilizing our environment and be impossible to meter and charge for, precisely the same charge that JP Morgan made to Tesla !

ah so this is another one of your loony conspiracy theories with the big bad evil power companies as the conspirators isnt it?

Quote from Racer X NZ :

A proposal that is presented in scientific forums for peer review.

exactly... not

Quote :

But expecting an educated, scientific response from some people, clearly pointless ................

im an electric engineer working in a well known scientific institute
what are your scientific credentials?

the fact that you dont even understand what the word theory means in a scientific context and completely confuse it with what in this case is little more than a conjecture (if that) makes any discussion with you coupletely futile and pointless (along with your complete inability to get to grips with you not being the smartest and most well informed person on this forum)

those articles are so full of inaccuracies missintepretations and general stupidity its not even funny

Quote from jibber :

I know about the needle having to break in first, same goes for the preamp as far as i know.

wait what? the needle i can see a point in but the amp is just and amplifier with a pretty funky transfer function theres nothin in it that you could possibly break in

also keep in mind no matter how much fiddling you do with it youll still get a much better sound from a digital recording

Quote from jtw62074 :

Another thing is that braking in straight lines is done hardly at all. At the end of a long straight with a hairpin at the end of it you might stab the brakes for a fraction of a second before you've slowed the car enough to start turning in, but I think most of the braking is done while cornering.

i guess theres a huge difference between the parking lot drivers like me and track drivers in that aspect
ive never actually driven on an rc track (though a friend tells me the difference in grip level is night and day) and with the way our cars are set up (generally well beyond whats legal in professional driving) on the parking lots theres corners where the braking distance can be 5m and more
so to conclude that rambling i guess my suspicion was right that its more a case of what they can get away with while giving them a bit of an advantage instead of something that is better in every way

Quote :

With electric 1:10 cars (in VRC) that have the same tires front and rear, this doesn't work well for me at all so I use a solid axle on the front. In reality this is what most people seem to do too, even at the world championship level.

that baffles me a bit as well
older cars all used to have ball diffs front and rear
im guessing theres an advantage there to be had in terms of weight (all 1:10 cars these days have become so light and open compared to what we drive that wed probably have to come in every lap to dislodge a stone from a cogwheel or beltwheel)
personally i find the cars way too understeery at turn in if i set the front diff up too stiff

Quote from Hyperactive :

It looks like the yaw angle of the car doesn't change the slip angle difference between front and rear. The cornering radius does though.

actually not as such and thats imho a pretty terrible and confusing way to think about it
the correct way that makes sense both in terms of how you think about slip and mathematically is to consider how the velocity vector of a tyre changes during cornering
namely additionally to the forwards vector (essentially just the speed of the car) you also get a vector perpendicular to the car that represents the speed at which the car rotates around its cog
assuming normal cornering for the front wheel that vector is pointing inwars (thus reducing the slip angle) and for the rear wheels its pointing outwards (increasing the slip angle)

naturally those velocities grow as the car turns torugh a tigher radius and roates round its cog in a shorter time

todd since youre in physics discussion mode today i thought you might help me figure out what the bloody point behind many cars using one way bearings instead of diffs at the front is
surely having only a handbrake is a terrible thing to do?

thats why the side effects are all listed along with their probabilities

so i guess the answer to my question is "yes" then

Quote from jtw62074 :

I've often wondered what the real Skippy does, so I'm really happy that you got into this discussion and explained what it feels like in the real car, Madcat. Thank you.

one thing about the real skippy though is a trainer car that they probably dont allow you to do a lot of setup work on right?
in theory it might be just the same but they only ever allow you out with a brake bias far forward
also it might come down to something as simple as youre steering too much when you release the throttle and the front tyres jump from a state of being laterally traction limited by braking to peak lateral force in an instant

Quote from BlueFlame :

Like on some medication the side-effects list are random as hell, because idiots believe painkillers per example can give them x side-effect when in reality it was caused by something else.

are you really that stupid? the side effects are determined by clinical trials

Quote from jtw62074 :

If it was engine braking, the behavior would manifest itself right away at small slip angles rather than just large ones. In the first part of the video where I'm blipping and releasing the throttle, the car straightens up when the throttle is released (understeer yaw moment). The trouble is that this fundamental behavior reversed course once the slip angle grew enough.

hmmm good point

Quote from sinanju :

Wonder how many people remember the original 1969 Zager and Evans song 'In the year 2525'?

Hopefully, I'm not the only one!

i think youre the only one old enough to remember

Quote from jtw62074 :

No, I didn't. It shouldn't really matter.

well it does look a bit like what the car would do if youd pull the handbrake so the effect could theoretically come from way too strong engine braking

todd have you tried this with the clutch to make sure this isnt caused by something wrong with either the diff or the engine braking?

just one question
are you guys still full timing lfs or has ot become more of a hobby project?

whenever he goes off on one of his rants about how everyone else is too stupid to see how bad this or that movie is i just remember how much he loved avatar and it all makes sense

Quote from Intrepid :

haha... ahh you can't buy or be given someone else's licence? How does that contradict being 'pro-capitalist'? Sometimes this forum cracks me up.

"Here, have my licence" "No, I am capitalist pig I shall buy my own new coz I iz greedy"...

the point is that youre a poor unintelligent sap with hardly any marketable skills
ie exactly the kind of person to be walked over in a truely free market

i seem to distinctly remember that you got this licence from someone else (who iirc was equally despised as a human being as you are)

oh hell youve started the guy whos too skillless to make enough money to afford his own lfs licence on a pro capitalism rant
fix it right the hell now!

Quote from robt :

was out playing with his skirt yesterday lunchtime

how is that in any way related to cars though?