Recent content by pixel01

Thank you cristo

Hi all, I read in an article and met this: "..without a paddle in sight" or " .. no paddle in sight".. Is this a proverb and what is the meaning? Thanks

Thank you xxChrisxx. But we can not say the small bearing or the big one is more vulnerable if the oil is insufficient. Or by other way, after many years in use, which one 'goes' first? (sorry for my bad English) Thanks Mike, It seems clearer now.

Hi all, I have this question from my friends and hope get the answer. Using your car with the oil is not sufficient, the connecting rod is the first to fail. Normally it burns both bearings or the smaller one (connecting to piston) burns first? I think there's a dilemma here: the bigger one...

Hi all, Anyone could explain the meaning of this ad please:

In all map, we always see the north on top, why's that? when was this way first used? Anybody know? Thanks

It depends on the resistance, both of the wires and the battery/adapter. If you use a Pb battery, I think it takes just fractions of a second

Hi all, I am trying to upgrade my car's audio system. There are kinds of free air loud speakers. I am not what they are. Anyone could explain and why they should be used in a car?

It's the final just right now. Anh I have a small question: It's clay and the shoes of players are all dirty, but the balls look not so. Quite clean? is that right? Anyone ever being inside the court could explain? Thanks

Thanks for the answer. The glasses are not really colored, just a little redder (left) and greener (right), but through it, the color of the film does not change (or I just can't see). (Next time I will check by turning the glasses by 90 degrees!)

Hi all, When viewing 3D films, you are given a pair of glasses without which, the pictures are bad and blur . So what is the principle of the technique? Is that polarization of the light? Thanks

? I guess you all have experienced electric shocks (sometimes, not gentle) while walking in a supermarket and unattentively touch the trolley or somethings. That's all for friction of the shoes and the floor, not the air moving. So in the case of trucks, I am not sure if the tires are the...

I have not googled, but the 2 cases are quite different. Airplanes fly very fast, the friction caused by moving air is big. But the truck moves much slower and the tires always have friction with the surface of the road. My speculation is about the truck.

Sure that the tires do not dominate the charge in airplanes. They taxi very slowly and just some km on runway.

But we don't know what is the dominant. Possibly that the tires can make up 99% of the charge, and we can neglect the air. Say, the airplane, it fly very fast and I do not know if if has problem with charge caused by the moving air.