Laboratory Definition and 94 Threads

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I have an IR laser for which I want to find the TE (Transverse Electrical) vs. TM (Transverse Magnetical) mode. I know that the laser has linear polarization, and is configured for a single longitudinal mode with transverse mode close to TEM00. I have a polarizer (not exactly but nearby...

Hello everybody, It'd be very helpful if you could propose some ideas, suggestions to what we've already made. -------------------------- So, we had a test rig consisting of an inclined board, connected with floor using a curved steel plate. The model of a car, after gaining some...

Hi all, I'm trying to construct a histogram from my data to illustrate evidence of muon lifetime. Attached is a .txt file that contains counts from our detector that correspond to different bin sizes (lengths of time muons were counted in detector) from our experiment. The file is 1x500...

Homework Statement I'm doing this experiment in physics laboratory (I) about projectile motion and I'm concerned about some of the results (range) I'm getting. I'm using spherical projectiles about 3.0 cm wide (diameter). Here's the thing, with the launch angle from 10 to 20 (thus, from...

I'm not nearly as good at laboratory work as I'd like to be. I'm therefore searching for a book (or books) that describe, at an introductory level, the following topics: - Methods of using computer code to interface with hardware (e.g. using GPIB/IEEE addresses to extract information from...

I find this (quite new web page I think) very interesting: http://phl.upr.edu/projects/habitable-exoplanets-catalog/results How can they determine that there are more potential habitable exomoons than actual confirmed and unconfirmed habitable exoplanets? Through how it looks like in this...

Homework Statement B mesons can be created through the reaction chain e+e- → \Upsilon(4S) → B+B- by colliding beams of electrons and positrons head-on at centre-of-mass energy equivalent to the mass of the \Upsilon(4S) resonance. a) If the electron beam energy is 8GeV, show that a positron...

Firstly, please excuse me if this post is in the wrong section, I couldn't find any "experimental" physics section. Please note that the template is not used since the questions is pretty much descriptive. As part my course, I have one lab session per week. Its duration is one and half our...

Hi all First of all, I don't know whether this is the right sub-forum to post at, so forgive me if it is not. I have recently been asked to establish a modern physics lab for university students at sophomore level, so what experiments do you suggest to found the lab. I've included the...

I am a high school physics intern, trying to figure out how calorimeter accuracy affects the recoiled proton's mass in a collision, where an electron beam is aimed at a proton target. The electron beam emits a virtual photon and scatters off one of the virtual pions around the proton, and the...

I am in need of constructing a heater probe for a reaction chamber. I need to put out a maxium of 500 Watts continuous from the 5 cm end of a probe of either 1/4" or 5/16" in diameter. I am constrained to either of these standard sizes. My first inclinations are to wind nichrome wire...

Well, first of all, thank you for reading this, as you may see this is my first time posting, but I've been reading threads here for a while and found it really helpful, this time I find myself stuck and hope you can push me in the right direction. Homework Statement In the laboratory we...

Welcome! I am currently doing a laboratory assignment for school and am having trouble analyzing what the number i am getting mean. Explanation: We sent a curling stone down a rink and recorded its distance and time traveled. Problem: Determine the acceleration (deceleration) of...

In lab I have. 200 mL of a standardised solution of NaOH (of appoximately 0.1 molar concetration) labeled sample tube containing unknown acid or unknown base. Indicator: phenolphthalein, Universal, methyl orange. The aim of this laboratory is to determine the molar mass of an unknown acid...

by Lloyd, 3rd edition? I need a big favor. Can anyone scan Laboratory #16 from the book? It's centripetal acceleration of an object in circular motion. I loan the book to someone and I forgot I need to do the Pre-Lab before Monday. Anyone that can help out I would really appreciate it.

hey, just bought this interesting piece of laboratory equipment, but i have no idea what its used for. the 4 meters on front panel measures peak control, integrator, and count rate (x2) potentiometer knobs is saying; high voltage, underneath the peak control meter, under the meter...

Understanding the short-distance behaviour of gravity is crucial for constructing a quantum theory of gravity. The Newtonian inverse square law approximation has been tested in laboratory down to millimeter scales, but I'm not aware of any laboratory scale experiments testing general...

Hi all, if I have the velocities and rotations of an object with respect to a moving frame. Are there relations that I can obtain the velocities and rotations of the object with respect to a fixed frame?

In case there are people who might be interested in this but didn't realize either its existence or deadline, the deadline for SULI application is coming up fast - Feb. 1. http://www.scied.science.doe.gov/SciEd/erulf/about.html Zz.

Friends,seeking some doctoral Researchers in the sub-domain of thin-films,I would want the following assistance from any of them: (1)A Standard Reference Book that addresses introductory (Post Grad.) and advanced (PhD) topics in thin Films.(2) Some standard Lab projects that has been...

Homework Statement In the laboratory, you are given a cylindrical beaker containing a fluid and you are asked to determine the density \rho of the fluid. You are to use a spring of negligible mass and unknown spring constant k attached to a stand. An irregularly shaped object of known mass m...

A laboratory technician drops a 0.0850kg sample of unknown solid material, at a temperature of 100.0 degree celcius, into a calorimeter. The calorimeter can, initially at 19.0 degrees celcius, is made of 0.150kg of copper and contains 0.200kg of water. The final temperature of the calorimeter...

Argonne National Laboratory, the first US National Laboratory, will be having its Open House on Saturday, August 29, 2009. The hours will be from 9:00 am to 4:30 pm. Practically all the divisions within the lab will be opening its doors for the public not only to view and see some of the...

Methods of laboratory fatigue testing?? I have had a try at this question but don't think the answer was enough. Can someone please check it and give me the correct answer. Question Outline the methods of laboratory fatigue testing and the results likely to be obtained. (10 marks)...

For my final project for second quarter physics for engineering, we are doing labs that we setup ourselves. The problem posed to my group was to measure the capacitance of a capacitor and it's dependence on external temperature, and then fit the data to what should be an exponential decay curve...

What is the reason for not attempting to both generate and detect gravity waves in a laboratory? I mean if Eotvos could measure the gravitational force from from dissimilar materials with some accuracy, then why not place two more sensitive, modern gravity measuring devices some distance apart...

http://www.sciencedaily.com/releases/2008/11/081117193019.htm This new ability to create a large number of positrons in a small laboratory opens the door to several fresh avenues of anti-matter research, including an understanding of the physics underlying various astrophysical phenomena such...

I've started my own personal pet project in trying to suggest a possible revamping of the often dreaded intro physics lab. My philosophy here is two fold: 1. Teach skills in how we arrive at how things behave 2. The students shouldn't be encumbered with "theories" that they need to either...

Homework Statement 1. Explain why the following chemical reaction would not be effective to determine [Fe2+] in a given solution. Fe2+ (aq) + H2O2 (aq)-> Fe3+ (aq)+ H2O(l) | in acidic solution Homework Equations The Attempt at a Solution Hello: I am thinking that there may be a lack of...

Researchers at St. Andrews University, Scotland, claim to have found a way to simulate an event horizon of a black hole - not through a new cosmic observation technique, and not by a high powered supercomputer… but in the laboratory. Using lasers, a length of optical fiber and depending on some...

I ask because I will in a year be applying for internships doing lab based work in physics, hopefully. Now what can you tell me what are some valued skills in the lab? -How about expierence in numerical analysis software? My uni does what they call a summerfield session for physics...

Hey! This is for a 4th year undergrad project in Applied Molec Bio. I need an idea for a molecular biology-based, laboratory research plan. It needs to be an "original" idea but I'm having trouble of picking one... I will not actually be performing any experiments. It will contain...

hi friends m a student and want to lnow how xrays are emittted from labortary plasma and xray emission dependence on the atomic number of target from which we are creating plasm.explain me with refrence to the shells thanks take care

Well I just found out today I made it into my medical laboratory science program! I am so excited, I have worked hard to get in. I cannot wait for school to start now...come september I will be taking courses in clinical chemistry, human histology, pathogenic microbiology, physiology...

The empirical MOND explanation of galactic rotation curves involves switching over in the low acceleration regime from the Newtonian acceleration Gm/r^2 to the MOND acceleration term sqrt(Gm a_0)/r. This is normally achieved using an "interpolation function" which effectively switches off one...

Hi guys, hope all are fine. i m new here and don't know much about the rules. well according to the question i have, i thought its the right place. i ll never mind if it is moved. anyways today i studied the simple laboratory hydraulic bench... i got struck in the part where plunger is...

A physics student measures molecular speeds in a laboratory apparatus and concludes that the distribution of speeds is such that: 10% have a speed of 200 m/s 10% gave a speed of 250m/s 15% have a speed of 500m/s 30% have a speed of 650m/s 20% have a speed of 900m/s 15% have a speed of 1300...

Just looking for confirmation of a few thoughts and a couple of requests for information. Firstly, there are two significant processes when observing evanescent waves between two prisms, right? Firstly, the evanescent wave travels along the boundary of the reflecting material and regenerates...

Fachschaft Materialwissenschaft http://www.tu-darmstadt.de/fb/ms/student/fs/german/lab/ Some basic material on the following topics: Laboratory Manual Chapters Chapter 1: Materials Science Calculations Using Spreadsheets Chapter 2: X-ray Diffraction Laboratory Chapter 3: Phase...

Need a help on how to go about building a Laboratory scale using strain gages I need to build a scale with a working range of 2 to 200 gm, an accuracy of at least 2 gm, footprint of no more that 16 in sq, and use no more that 6 strain gages. I believe I need to set up the strain gages in...

Help..pleasez. how does a clinical thermometre differs from a laboratory thermoeter? hey. anyone could help me in listing ways in which clinical thermometer differs from laboratory thermometer? with explanation for each difference? thanx everyone for ur help.

University of Washington - Mechanical Engineering Department Course Notes Chapter 1 Introduction Chapter 2 Stress, Strain and Constitutive Relations Chapter 3 Beams: Strain, Stress, Deflections Discontinuity functions Comparison of...

What piece of apparatus can be used to introduce more liquid into a reaction and also serve as a pressure valve? a)stopcock b)pinchcock c)thistle tube d)retort I'm guessing it's the retort. Am I correct? If not can you tell me which one. Thnks...