Limitedslip7

An RX-3 could be pimp. They can look so damn cool when done right. http://www.selectmaz.com.au/images/bodykits/rx3redl.jpg

It's a rotary, it does its own thing.

Competition racing is pretty decent. The karts are faster than the ones at Speedz and the track is a bit more open and higher speed. It's right by the Argosy casino too.

That is one BADASS pool!

What are your plans with the car?

Considering that the problem does not state if the cup is covered or not, or give any psychrometric data, how could you determine this other than NLoC? Seriously, I am very interested! I'm not taking heat transfer until this fall, so I only know the basics...

So, to continue beating the cooling horse. Jeffmeden, what do you think about condensation forming on the colder cup? Seeing how condensation is the opposite of evaporation, it releases the heat it took to evaporate it when it condenses. I would think it would also increase the efficiency of the thermal barrier it condenses on. I hypothesize that if we assume the OP's containers are not sealed, condensation could cancel out any potential gains evaporative cooling gives to the hotter cup.

Classic lager FTW! :nod:

Actually, I dabble in engineering too, mechanical though. How are you going to go about setting up this test? Remember the cooling/heating curves are logrithmic and approach a horizontal asymtote at delta T = 0, so this test could take a long time depending on cup size and temperature difference. Maybe you could track and plot the data points in Excel at like 5 min intervals? +-10 degrees would probably work good for starting points, but what would the variance be for human and measurement error? Might have to make the temps a little higher/lower... Stirring the water or a breeeze can have a big difference too, so try and minimize these variables or make them constant. This is going to be totally sweet... It doesn't say wether or not the cups have lids in the original post... sooo maybe we could go ahead and do that?

^True, but since he did not give wet bulb temps, dry bulb temps, barometric pressure, relative humidity, cup composition, purity of the water, size and infiltration rates of the room, position of windows and time of day/season... well, fuck, you could go on all day! He also doesn't say wether the cup is sealed or not; it might be a thermos. I doubt he is trying to split hairs that finely

I think the wheels look great! I agree with the hood cutout though... looks cheesy. If your going to show off the motor, do it like Ferrari.

Ummmm, dood, you are still agreeing with me. When the cup is hotter than the room, the heat flows from the cup to the room. When the room is hotter than the cup, the heat flows from the room to the cup. According to Newton, it will take the same amount of time to do either. They will both take the same amount of time to reach room temperature, and a bigger variation will not change this.

I did and I disagree. Newtons Law of Cooling: dT/dt = -k(T-Ta) "k" is the thermal barrier constant thingy, which will be the same for both cups in this case. There is no mass relationship in this equation, just a temperature differential across the thermal barrier. If you don't belive me, just plug in the numbers, integrate each with respect to "t", and plug in the same time for each. I would, but I don't have my calculator and I suck at calculus without it (I suck at calculus anyways though).

If all things are equal with the only variable being the temperature, they will both reach room temperature at the same time.

Jeeesus fuck! Any info on the build? If there was a thread I missed it...

Thats an awfully large bottle of lotion ya got there. http://i104.photobucket.com/albums/m187/limitedslip7/Random/untitled.jpg

Hahah, I think you may have hit the nail on the head. 110*.15 = 16.5 So he burns 110 gallons of E85 in it for a given number of miles, but "only" 16.5 gallons of gasoline? If that is true, what a douchenozzle.

EconoTIG Bridgeport Lathe

I agree with the bullshit calls, unless he is using electric motors and battery packs as well. With the big ass V8 included in the 2850lb curb weight, I am very skeptical of that. As stated before, carburetors only make it that much more implausible, however the E85 doesn't really matter in their 100MPGE claim as the "equivalent miles per gallon" has a modifier in the calculation to account for the lower energy content. You can get an idea patented for $5-10 grand if you use a patent attorney, so even if they cost him $20,000 each, that is still SEVENTY patents. Also, why will he not list any of the patent numbers? If they are already patented, nobody can steal his ideas and all patents are available to the public anyways. Smells like bullshit to me... Why doesn't anyone anyone ever post any actual technological advancements? Here is a pretty cool article on recent Lithium-Ion battery improvements that sounds very promising: http://www.soft.lt/ECars/Images/NanoSafe%20Backgrounder.pdf Recharge in 10 minutes! 80% charge in just a few minutes! The batteries last over 4 times as long as regular lithium-ion batteries. Why don't we ever see this sort of stuff on the news?

Fucking sweet! I'm disappointed it only ever sees 1G though...

I tried one a few weeks ago, the meat has a very weird aftertaste. Definitely never getting another.

Here is the Yahoo story: http://news.yahoo.com/s/ap/20080620/ap_on_go_co/terrorist_surveillance Sounds pretty fucked up. Now they can continue to use the telecommunication companies to pretty much listen in on any and all communications in the US. Go watch Frontline's "Spying on the Homefront" if you want to see what they are doing and how they are doing it.

Holy damn. I never knew about most of that stuff. I wish I had read that before I got a DUI for SLEEPING IN MY CAR. Fuckers. Did you know you can get a DUI for riding a bycicle or a wheelchair? Yea, a fucking WHEELCHAIR.

Damn, if that is true it must have been one high fucking yield device. I would think a nuclear explosion would be discernable from seismic activity with the sensors we have.

Hideous :barf: 4200 lbs... of shit. Why make it so damn heavy? It doesn't even have to lug a shitloat of crazy gadgetry like the GT-R. Oh well, just makes it easier to bust that ass...