Practical application Definition and 17 Threads

I know now that making a full on vacuum airship is unfeasible for it's compressive properties. So why not just make a rigid airship that is evacuated enough that the hydrogen is no longer significantly dangerous to it's surroundings, using say 25-30% density of neutral hydrogen? What's the...

I feel like i am spinning my wheels at the start here. so I figured that i would start with some type of wire loop that I could change its diameter. This would allow there to be a change in flux through the loop creating a current through the wire. i could then read the current through the...

what is the practical application of engineering mechanics dynamics in civil engineering when civil engineers work on static analysis?

Howdy all, I'm looking at having two (preferably) stainless steel rods inside a plastic tube (for insulation and so they don't touch) with a push spring inside and between the two rods pushing each other away from one another, when not activated inside of an electromagnetic coil. When the coil...

I suppose you recognize, by title, the situation I am referring to. I don't know if physics people get it as often as math people. The situation of course is that I tell somebody that I am studying math, and if I mention some specifics, like mention Topology or Algebra, (which I have to sort...

Hey guys, i come here to filosophy about the pro's and con's a speakers suspended.. I'm a BsC in photonics from origin but in ative for quite a few years now (different study direction) and most knowledge is degraded.. At his moment I'm building a high end speaker.., the lx mini designed by...

As part of a wire manufacturing process, heavy wire coils are being sprayed with oil to prevent corrosion. Final step is to have these coils dripped to eliminate oil excess. Basic question is; if I where to build a vibration platform/table to do this dripping, what would be a good consideration...

Dear PF, This is my first post, so please pardon any faux pas. I've had some difficulty wrapping my head around the concept of torque. I have taken multiple classes on dynamics, statics, etc. I understand it theoretically, but not practically. A friend presented me with this problem...

Hello, I have to give a presentation on an application of electromagnetic field theory of my choosing, and I was wondering if anyone had any suggestions that might be more interesting than the ones that have been suggested. It's for a 2nd year university level physics (E&M) course, so the...

I was thinking that a car battery is a 12v source that delivers between 300 and 900 cold cranking camps. That'd put the cranking wattage at between 3600 watts and 10,800, right? Here's a car battery 'helper': http://goo.gl/Roo2l This is hypothetical at this point but what I was wondering...

I apologize for the rather vague title. It's space-limited and I'm not sure how to concisely state what I want to know. Basically, I understand that the solutions to quadratic equations (and if I remember correctly cubic equations) often had surveying problems land surveying. However, quartic...

Homework Statement To measure how far below the ocean surface a bird dives to catch a fish, a scientist uses a method originated by Lord Kelvin. He dusts the interiors of plastic tubes with powdered sugar and then seals one end of each tube. He captures the bird at nighttime in its nest and...

I guess GR is also needed to accurately coordinate space flight, but I highly doubt without GR the space shuttle will have any problem finding its way back home. Gravitational lensing doesn't count as practical application. Maybe a subject with even fewer applications is quantum chromodynamics...

Give one practical application of quantum mechanics and write about it in 4 to 5 sentences.

can anybody tell with equation,the practical applications of partial differential equation and ordinary differential equation. If it is in mechanical engineering statics etc will be helpful

I just did a semiconductors experiment involving the Hall effect and a doped germanium sample. The type of doping was determined from the Hall voltage using the sign of the recorded voltage and the sign of the bias current applied across the sample. Now, my question is what could be a...

What exactly is artificial intelligence, what are some of its practical applications, and have we created it yet? Please no arguments that humans are not intelligent! If it comes to that then this thread is useless.