Experiments Definition and 457 Threads

I am trying to make some Iron (II, III) oxide, Fe3O4. To do this, I used this procedure as a model, http://www.sci-spot.com/Chemistry/liqimag.htm [By the way, the colors described are what a color blind person saw, so in reality, it might be somewhat different] I did two trials. The first...

Hey, i got to do 2 experiements for physics to measure acceleraetion due to gravity, i did free fall experiment, dropping a ball from a certain hieght and measuring time n using the s=ut +.5 a t^2 forumula to get a and i need to graph this but i do not know what the two things i shot plot...

I'm a physics major in Alaska, where it's not uncommon to have temperatures of -40. Are there any interesting experiments or designs that I can do in my freetime that are convenient because of the cold weather? I remember learning briefly about gradients being a source of power. If...

HI there, I was assigned 7 homework problems but there were three I didnt know how to answer... please help, any hints on how to start would be appreciated. #3 the state of spin-1/2 particle that is spin up along the axis whose direction is specified by the unit vector n=sin (theta) cos...

Not long ago I read an article here in PF about explosion of dry ice in a bottle and I just accidentally found one of the video... If you are interested, u might want to check it out: http://www.spikedhumor.com/Article.aspx?id=360 Another physics experiment performed on water balloon...

In Physicsweb are reported the ten most elegant experiments in Physics (http://physicsweb.org/articles/world/15/9/2). In Biology, the Meselson-Stahl is currently seen as one of the most elegant experiments. What biological experiment do you consider as the most beautiful? Why?

YOu have 12 objects of the same apperance. 11 of theme have the same mass and one has a different one (larger or smaller). You allso have a ballance but you can use it only three times (and it's the only way to distinguish between masses). Is it posibel to find the object with the different...

Can I ask a stupid q? Using Wheeler's delayed choice experimental setup, one can vary the path length of one of the legs. This enables making all the photons end up at one detector and none at the other. Is this correct? If so, where did the uncertainty go? Can the interference pattern be...

So what kind of stupid experiments has everyone tried? For example, i was going to (but never got around to it) try to find out the specific heat of coca-cola. I also wanted to find out if smaller ice cooled faster then larger ice. So what kinda stupid or pointless or nearly pointless...

When I have to refer to when a certain event happened in a physics experiment, such as when the deep impact blast occurred, should i use US Eastern Time, GMT or UTC? What is the standard used when writing this stuff? :confused:

Hi. I'm a college student, part of a group who will be doing a hands on study of particle physics next year. We plan to build a linear particle accelerator, after which we may go on to build a cyclotron. We'll be accelerating electrons to start off with. I would like to find out more about...

My question is simple: What is the metal(s) used in photoelectric experiments? Textbooks just put a tiny metal foil. Any answer would be appreciated. Thnx.

I have a question about quantum entanglement experiments, such as the two-photon "delayed choice" experiment performed by Aspect et al. http://prola.aps.org/abstract/PRL/v49/i25/p1804_1 . Can anyone estimate how much time elapses between the arrival of a single photon at the detector, and the...

Are there many experiments you can do that are like, 'famous' that you can do at home without spending hundreds or thousands of dollars for equipment? Mainly, I am thinken about experiments done say, a hundred years ago or more, that don't require high-tech stuff.

Quantum mechanics has actually shown thru the quantum eraser experiments that we can rewrite the histories of photons, and that time is symmetrical. The best example of this is the translational interaction or pilot wave theory, where a particle future and particle past selves our in constant...

Hi can somebody here please give me some links or info on recent experiments (last 10 years) conducted to on the EPR paradox, for example i know of aspin's experiment, any others?

i have a question. you can call me stupid if you want but i need to confirm. i remember talking about an experiment in physics where if you shoot a bullet perfectly level from a gun and you just drop a bullet at the same time would both of the bullets hit the ground at the same time? i'd...

The most watched experimental efforts pertinent to modern physics are heinously expensive. State of the art particle accellerator project like the LHC cost hundreds of millions of dollars to build. http://www.physics.fsu.edu/PhysicsNewsletter/Spring97/The_Large_Hadron_Collider.htm...

What other classic quantum experiments exist that a novice should understand or be aware of? I’m aware of the double-slit experiment, what other experiments should I read up on? Preferably ones that are less than a 1000 pages and were written such that mypoor brain can understand them? :)

http://story.news.yahoo.com/news?tmpl=story&cid=624&ncid=624&e=1&u=/ap/20050420/ap_on_sc/great_ape_research an experiment apparently intended to see what kind of culture a small number of Bonobo apes will develop over several generations in captivity

Well I know of the boil sugar, add then let it stick. You can form sugar crystals on the stick then eat them. Well I am about 15 years to old to be doing that. What got my interest was this picture of "home grown Monoammonium Phosphate" So I was wondering. Are there any experiments I could...

http://www.masaru-emoto.net/japanese/jphoto.html - Photo http://www.masaru-emoto.net/english/entop.html When water is subjected to Vivaldi's Four Seasons, it takes on the appearance of a beautiful snowflake. When subjected to heavy metal music it takes on a hideous forum. When the word...

Perhaps some of u have read this article about the 'holographic universe': http://www.earthportals.com/hologram.html I was always especially interested in this part of it: Now of course it is well known that drugs can screw with ur mind. However i was wondering if anyone here has...

http://www.all-creatures.org/anex/rabbit.html Uhh.. I'm disgusted by this. I mean, seriously, why are we so cruel to animals :mad: I have to point this out.. these experiments are not science. I mean its simply stupidity. By running these experiments on rabbits and seeking statistical...

Hello, I'm with a group called RINO (would give you a webiste, but don't have one yet). In Holland we go to schools to do shows with liquid nitrogen. At the moment we're trying to improve our show, so we're thinking about new experiments. I was hoping some of you might have a great suggestion...

What kinda experiments prodive evidence that SC resides in the CuO layers? Off hand I can't think of how any experiments that I'm familiar with could distinguish if the CuO or another plane where SC. Thanks

One of our lab assignments was to use a lens to focus an arrow-shaped beam of light onto a sheet of paper. We were then told to predict what would happen if we covered up the top/bottom/left/right half of the lens. I predicted that covering the top portion would cause the bottom part of the...

What are some cool (school) experiments I can do with rocket models?

I wasn't sure where to put it, so I thought it would be best in Gen. Disc. If you had the chance to go to Mars and experiment, what experiments and new technology would you use? What new invention would you utilize on your trip? Just wondering what you all thought. Paden Roder

My school is conducting a special day, for teenagers in junior high that are considering signing up to my school. During this day students can do all sorts of experiments to interest the teenagers to study them. I am searching for simple yet interesting experiments in physics. Can anyone...

What if someone set up an experiment, where they sped up a mass of high density in a circle ethier by making its radius smaller and smaller, until the large mass is moving near the speed of light, then at an extremely small highet above this rotating mass you set off a high frequency laser...

I'm about to do this project in which we will prepare and perform an experiment and then later tell the class about it. All this in about a week. I'm now trying to come up with some interesting experiment to do during this time. I'd really like some help on the subject. I'm looking for an...

I posted this in reply to another topic in the relativity forum, but I realized this might be better as its own thread here in QP forum. I have some questions on photons being able to go faster than c. I just finished reading QED by Feynman (great book). One of the things he talks about is...

what are some of the experiments performed that upholds the predictions of SR?

Is there a site where I could see what people have done in various experiments? For example, I will be doing the verlocity of light experiment and would like to know what kinds of data analysis people have done so I can get some ideas as to what I could do with my data. Is there any such...

I want to surf some website(chemistry experiment, include vedio, lab report and other useful things about experiment...)the experiment may be the tiration, techniques, experiments or ions... Because I need to do experiment and lab report in school. I am a form 7 student! :smile: :smile...

Patrick posted the following interesting link in another thread: I'd like to discuss this some more. Whenever I have read about these experiments I have always hoped to see the results of one in particular but I have never found what I wanted. I can guess what the results would be, but...

I have been roped into running a science club for kids age 11-15. I would like to do loads of fun experiments with them, but I'm having a mental block. If anyone knows of any demos that might interest this age group, please let know. The topics are: Sound, Light, The Solar system, Forces...

these are lab experiments in which i have gathered but i still haven't performed them... can anyone please determine the basic answers or give tips for the upcoming experiments? :approve: thanks very much~ Making Salted Eggs/ Pickled Eggs I. Objective: To illustrate osmosis/diffusion in...

Hi, I've been thinking about too quite simple ways to create what I believe to be faster-than-light speeds, and would like to know your opinion. First experiment: 1. Shoot a laser pointer on the moon on a clear night sky. 2. Move the dot through the diameter of the moon. If a person...

I am needing to design some experiments for High School Students to explain Osmoregulation without harming the organism or experiments concerning excretory organs or systems. Does anybody have any ideas or references I could turn to? Thanks Nautica

Let say I have prepared two identical particle, both describable by a wavefunction Psi, whereby, Psi = a*1 + b*2, where, 1 and 2 are two stationary wavefunctions. If I perform an experiment to find out the systems' energy, this is equivalent to operating a Hamiltonian on Psi. Operating...

I have recently become interested in physics, and I have been reading different material in magazines and online. I don't want to blindly believe everything I'm "told" without doing some kind of experiment myself to be certain, before I accept these laws and theories. Does anyone know of some...

I am a freshman at USD ( chem major). I absolutely love chem lab. I have been think about preforming some experiments at home. Is this a bad idea, unsafe. I have had basic college lab knowldge, i.e. what to do if you spill an acid, ect. Is it safe to buy chemcials (an or labware)...

I'm in desperate need of any testing experiment that shows the conservation of angular momentum. It should be something where an objects shape or radius changes while it spins, and calculate the angular momentum at each moment in time to see if it's conserved. If anybody has any ideas at all...

In my bio class, we're learning about genetics currently and watched a video demonstrating mendel's experiments with pea plants. Something in the video didn't seem right to me, and my biology teacher is horrible and couldn't understand my question. In the part of the video in question, it...

My question is rather simple: Are there experiments where they have measured length contractions?

My friend and I have a lot of ideas for liquid nitrogen experiments (and we will be safe! :)), but we have no idea where to order it from. If from an online source, try to be specific. If in reality, try to give a little input on the process. Thanks.

will somebody smarter that me please tell me how this works. okay, here goes. experiments done in the yesteryear told us that if a photon was split (?) the two parts would act as if they were still together. is this correct? this is the first part of my question. i'll get on to the...

These are sentences I've red regarding this subject: - Time doesn´t flow for a photon traveling at c. - There is no after neither before for it. - Therefore, no causes and effects. - A photon doesn't have age, it doesn´t matter if it was born in Big Bang or in a experiment yesterday...