Recent content by PhysicsDad

Yes, On a fuel injected engine the pump is located inside the tank and gas is cycled through the tank to cool the pump. It goes in through a port on the top of the tank and the bottom of the pump rests on, or very close to, the bottom of the tank.

To an extent... The fuel pump is usually about 3/4 the height of the tank, so at 1/4 tank about 2/3 of the pump is exposed to air, with only the lower most portion being properly cooled (i.e. Keeping the temperature below 150 degrees F). When the gas level is low, the electric part of the...

I've been an automotive mechanic for 10 years, and the tiny amount of sludge and water at the bottom if the tank is not worth worrying about, however, the gas is used as a cooling medium for the fuel pump, and going below 1/8-1/4 tank can cause the pump to overheat. Doing this repeatedly will...

Why was Heisenberg's wife never happy? When he had the position right, he didn't have the momentum! (American Dad)

Wow, that got a lot of responses real fast. Thanks everyone, I'll start with some of these suggestions and definitely come back for advice if/when I get stuck. Thanks all

Hello all, I am an amateur "physicist" just tinkering and experimenting with my son, and as I read the posts about different concepts, I can get the general idea of what is being explained. However, when it comes to the math (equations for the wave functions, calculating eigenstates, etc.) I...

This may be a dumb question, but I am still new the the concept of the quantum world... If we can't measure position and momentum precisely at the same time, why can't we use 2 detectors? One to measure position, and one to measure momentum. Have them take the measurement at the same time, and...

Thank you so much. As you said, it doesn't cover what the laser experiments have to do with it, but as far as the materials we could possible use, it was extremely interesting reading (even if some of it was a little over my head)

I've been trying to follow these experiments that NASA is doing to try and warp space-time on a microscopic scale. Obviously that won't have us traveling at FTL speeds yet, but it would be proof of concept. From what I read, they are using a laser, and some kind of special ceramic material (I...

This may be a basic question, but it's something I'm having a hard time understanding. The Wikipedia article I am reading about spin http://en.wikipedia.org/wiki/Particle_spin seems to be saying that spin isn't really what we think of on the macroscopic scale (ie: spinning on an axis like a...

And those who don't understand this joke...

This is a quote from another article on the same site, describing the size of this formation. http://www.space.com/19227-biggest-structure-universe-explained-infographic.html Quote: The currently accepted Cosmological Principle, based on the work of Albert Einstein, suggests that the largest...

Ahh, I must have missed that... Thank you

Just saw this http://www.space.com/19220-universe-largest-structure-discovered.htmlarticle about a quasar group that's 4 Gly long. Not to speculate too much, but any thoughts on how much of an impact this could have on our current models and understanding of the formation of the universe? The...