Resolution Definition and 313 Threads

Hello Forum, When we are speaking about a display resolution 128x64 pixel how can i know the active area width of this display , is it depend to the pixel it self or what ? or is it a speacial calculation from pixel to mm?

We're producing high quality steel castings which are then hot dip galvanized, so the surface has a layer of zinc in addition to the steel. We need to cast some basic branding and size details into the product, with a slightly raised embossing, and I can't get any sensible info from anyone...

Homework Statement Plane flies at constant ground speed of 400mph due East. There is a 50mph wind from the NW. Find airspeed and compass direction that will allow the plane to maintain its groundspeed of 400mph and due east direction. Homework Equations see b3 The Attempt at a...

If I have a camera orbiting in space way above the Earth, and it has a diffraction limited resolution of 4.1*10^-7 m (diameter of airy disc), then how can I find out the corresponding value if the lens is supposed to take images of the Earth?

Einstein's resolution of the "clock paradox" I have read that most physicists believe that Einstein's resolution of the "clock paradox" or "twins paradox" is flawed and just plain wrong. I'm curious about what everyone here thinks about it. And I believe Einstein generally was interested in...

I'm having trouble finding information on why when you get far away from a piece of paper covered in yellow and blue dots (evenly spaced) the sheet eventually appears green. I know this has to do with color resolution but not much beyond that.

Hello there. I have a small problem trying to calculate the resolution of a DFTS (Dispersive Fourier Transform Spectroscopy), which is very similar to Michalson Interferometer or FTS (Fourier Transform Interferometer). I know it has something to do with the scanning distance of the delay arm and...

Which is best? I have the TI-89 but I am curious about how it compares to the hp50g. Does the hp have ebook reader apps or note making apps. can the screen resolution be adjusted to increase the size of the character font etc. Does the hp have good 3rd party app support. the TI apps are...

I have this Matlab GUI and I need assistance with making it independent of screen resolution. What I mean by this is that I want it to resize itself according to whatever the screen resolution is. Now I know how to do this for the actual GUI figure window, but none of the objects within the...

[SOLVED] Telescope Resolution Homework Statement An Active Galactic Nucleus (AGN) is fueled by gas and dust in a rotating accretion disk that is streaming onto a supermassive black hole in the center of the galaxy. These accretion disks are typically a few pc in diameter and are best detected...

It's quite simple Physics to show that the moon landing sites cannot be imaged by Hubble as its angular resolution is too small. So how come: "Prof Steve Beckwith Director Hubble 1998-2005 "we could easily image the light from a firefly at the distance of the moon" What am I missing here?

This was just passed on December the 6th. Why? Recognizing the importance of Christmas and the Christian faith. (Introduced in House) HRES 847 IH1S 110th CONGRESS 1st Session H. RES. 847 Recognizing the importance of Christmas and the Christian faith. IN THE HOUSE OF...

I have been trying to find the explanation why the wavelength of a wave is the limit of the resolution of an image (i.e. one cannot see the detail smaller than the wavelength), which is sited as the reason why we cannot see an atom using visible light. I don't think I really understand why this...

hi guys, I'm making a game that requires a bit of physics... I'm trying to implement a 2d physics engine which will have rotation as well as local forces i.e. forces that could rotate the object. The problem I'm facing is that if objects collide, their velocity at the point of collision can...

In the given circuit (1st diagram), the switch T is initially down (creates a connection). At a certain instant, the switch is turned off and for a while the circuit is kept in that state(final situation). Find the ΔQ=Q(fin)-Q(init) on the top plate of the capacitor while passing from the...

What does it mean by when they say position resolution is 20% ? Is a lower percentage better or worse?

Hey guys, I've been set this problem sheet for optics and I haven't got a clue how to complete it, the course was really rushed and all of us have been left confused, so any help would be greatly appreciated. 1. A man is stranded. He needs assistance and his mobile battery is dead. How large...

Israel urged to turn over Arab areas http://news.yahoo.com/s/ap/20070921/ap_on_re_mi_ea/israel_palestinians Here's an idea - stop the hostility and give peace a chance. Youngbloods - Let's Get Together

What's the definition of "vector components"? I mean that when I resolve a vector into two components, my teacher taught us to find its x-component which is on x-axis and y-component on y-axis, so if it be the case, then this vector must not be on either x-axis or y-axis but between. So is that...

Electron...achievable resolution? Homework Statement An electron is confined inside a sphericial region of diametre 1.5nm.The speed of the electron is measured. Which of the following is not an achieveable resolution for the measurement? A +/- 9.7*10^3 ms^-1 B +/- 3.86*10^4ms^-1 C...

I am not a math whiz, but I need a formula similar to a parabolic curve to design a shape similar to an aircraft wing tank in 2D. I have found two body of resolution formulas in the old NACA files, but only the rear aspect and thickness of the shape can be changed. Naturally... I need to...

Homework Statement A dish operates at a frequency of 4 GHz and has a diameter of 3 m. What is its resolution? Homework Equations my take home quiz referres me to a page number in my book for the equation, but I have an older book so I can't find it. i think it is the equation for the...

Nobody replying, so I’ve reframed the question A 24V DC motor has an optical encoder with 500 divisions which outputs the pulse frequency to an electronic counter/timer. The motor has a flat pulley of 31.827mm diameter used as a tape drive. (a) Calculate the resolution in linear travel of...

http://www.chron.com/disp/story.mpl/nation/4733426.html Could this finally be the beginning? I always did like Vermont.

[b]1. The American Television Systems Committee (ATSC) sets the standards for high-definition television (HDTV). One of the approved HDTV formats is 720p, which means 720 horizontal lines scanned progressively - one line after another in sequence. Suppose the 720 lines are displayed on a...

hi, i was just wandering what colour you see best in a why?, i mean if a room was to be flooded in red blue or green what would be the best for the resolving power of the eye. thank you very much, alex

Hello, I have somewhat of a technical question and was hoping you would be able to help me. I have a display that is 852 (x3) x 600. This means that that there are 852 x 600 of the red, blue and green filtered pixels. Say however that I am looking at a completely red object, thus only red...

If you are not aware of this, here's a brief sypnosis. The new US Congress has decided that, rather than try to rewrite the budget for Fiscal year 2007 that was approved by the previous House, they are just going to adopt the 2006 budget as the continuing resolution. This is disasterous for...

The two diagrams show a load hanging with 2 strings of the same size and type hanging from a flat plane. Find the tention on each string for both situations. I know that Fy of both strings in Diagram 1 are equal. Fy=Fy Thus the...

I have a question about a limiting angle of resolution when viewed from a circular aperture. I'm trying to find the distance between two lights of a certain wavelength. The lights appear to merge into one at a given distance when viewed through an aperture of some given size. So far I've...

I am having a BIG problem regarding the resolution of forces and also component of forces .I just cannot simply understand it.I have v\been struggling with it ever since i studied it.Please help

how can i measure resolution of SEM? please help! :cry:

I would submit that this resolution is binding. It binds the men and women serving in our military to remain as targets in Iraq. http://msnbcmedia.msn.com/i/msnbc/sections/news/060616_War_Resolution.pdf This IMO is the point the GOP leadership missed. Obviously this was nothing more...

I have a few questions regarding measuring devices in systems such as ventilation, heating, cooling etc. When calibrating these I come across the terms "accuracy" and "resolution" (directly translated from norwegian). I a bit confused about the difference of these. Can someone explain this to me...?

every subect seem to be different! which kind of graph and a lot what axis do i plot, if i was to do plot resolution against lux! plus anyone kno the proper way to do this in excell. thanks

the headlights of a car are separated by a distance of 1.4m. at what distance would these be resolved as 2 separate sources by a lens of diameter 5cm if a wavelength of 500nm is being used ? using theta=1.22 * wavelenth / D I am stuck as I don't know what angle theta is or how to work it out.

hey how would you work out resolution of an human eye at defeerent distances looking at 2 lines 0.25mm apart? cheers alex

I just got a 21 inch CRT monitor. I like to set my monitor at 1920x1440 when looking at pictures from my digital camera. The screen is then almost large enough to show the entire picture without reducing the picture's sized and hence resolution. But then everything else is tiny. For...

hi, I've just done an experinemt to try and show the resolution of the human eye in different light levels. i did it by putting a 0.25mm apart slits in a tube then, behind it had an adjustbable light, then i moved the slit further back, and asked them to say if they could see the two slits...

Hey, I am getting interested in the human eye. and I've set up an experiment, to try and prove, how the eye resoultion changes at different lux i.e setting it to 0.1 lux then move 2 slits further away ect. then doing it with dfferent amounts of lux does anyone have any useful information. or...

Does anyone know what the native resolution of Cassini's various cameras are? I'm looking for VERY high resolution (> 3 megapixel) versions of images like the one below, suitable for producing a good 5x7 or even 8x10 print. Anyone have any links to such high-res photos? - Warren

Considering the way in which Iraq was invaded: http://news.yahoo.com/s/afp/20051031/wl_asia_afp/unsyrialebanonhariri" We all know how the USA interpreted this the last time.

how do you calculate the following question? what is the smallest distance that could possibly resolve for an electron microscope operating at 50KV?

You row a boat perpendicular to the shore of a river that flows at 3.0 m/s. The velocity of your boat is 4.0 m/s relative to the water. a. What is your velocity of your boat relative to the shore? b. What is the component of your velocity parallel to the shore? Perpendicular to it? A was...

I can't figure out how to do this one: "Mr. Porter has attached a sign that has a weight of 495N to a wall outside his home. Determine: a) The magnitude of the tension in the chain; b) The thrust force exerted by the rod, if the angle is 35 degrees" I'm not seeing how the answers are a)...

*What is the resolution (in megapixels) of the human eye?

Okay, here's a problem from my Statics class. Just dealing with 2 vectors, their direction and magnitude given--need to find the same for the resultant vector. If I break it down into X and Y components, I can do it quite easily...but that's not the way he wants it done. It has to be found...

Just want to say hi. Iam new to the forum but here is my question. Today we were talking about resolution of a circular aperture and the instructor told us to make sure we know this he gave us some equations, but i see no examples of it in the book. could someone help me out? The equatuons he...

Dear Friends, Another questions about mathmatics. How can be resolved a ecuation like this? { \frac{ \partial{(m \vec {v} - \Psi \vec {v})}}{ \partial {t} } = \nabla (\Psi \vec {v}^2 ) Asuming that v could be any vector, m a constant, and psi a wave function. It's not the similar...