Physics

Is it possible for an object to achieve the required escape velocity around a planet but not leaving the planet? I still have some problems concerning the radial acceleration .

Hey everybody, I was wondering the other day how important is the abillity to have a viewpoint of the underlying processes involved for a physical theory? How important is this to allow theory to be considered theoretically plausible by the scientific community. I am concentrating on theories in the field of Physics, which was I posted in this part of the forum. I shall help to illustrate, using 2 examples. You may or may not know, in ancient times, the egyptians and babylonians had already developed accurate mathematical models that were able to predict the movement of the stars and constellations. However, the Ptolemaic model, whose predictions were not as acc…

It might sould like a retarded question, but I'm just asking it to make sure: If you have a cube magnet like this https://www.magnet4sale.com/xcart4/product.php?productid=16310&cat=287&page=1)= and you get one of those and stick them both together, whould the field on the poles be 2 times stronger, i mean, would it have more pulling power? Thanks a lot, I appreciate the help!!! ;) ;) ;)

http://www.nytimes.com/2006/07/04/science/04phys.html?_r=1&oref=slogin&pagewanted=print Physics Awaits New Options as Standard Model Idles (a July 4 science essay by Dennis Overbye) Dennis Overbye is the top science writer covering theoretical physics at the NY Times. Here is how he introduces the theme of this short article in today's Times: "...Forget the lifetime tenure, the travel, the six-figure book contracts — what professional physicists live for is the tsunami moment when they know something that nobody else has ever known, the revelatory flash of a new glimpse into the workings of what Stephen Hawking, the Cambridge University cosmologist, c…

Homepage: http://www.sullydc.com/index.html Patent: http://patft.uspto.gov Diagram from Mr. Sully comapring with X-Bridge: http://www.upload2.net/page/download/Wfkv2jhWORMY31J/SDC4.pdf.html Motion Diagram: http://artpad.art.com/gallery/?ivwok27luvg Mr. Sullys' forum thread at PhysOrg: http://forum.physorg.com/index.php?showtopic=5266 Images: http://www.rexresearch.com/sullivan/sullivan.htm I'm going to try to stumble through an explanation. Lets use figure 12 from the patent for discussion to avoid confusion: SDC requires at least one extra PHYSICAL dimension in the current path which is the fluid electrolyte[Water + Ele…

I discussed this a little with YT on the SFN chatroom, and I want to know why information cant be transmitted any faster than C. I dont know if there if "information" has a special meaning in physics, so I'm going to use it as a synonym for language and communication. Specifically, I want to know if its possible to send Morse Code from point A to point B faster than 300,000 km/s. I've heard of ways where objects can travel "faster" than C in a trivial sense, for instance if you wave a beam across the sky you could observe the reflected laser dot trace the surface of the moon faster than C. I've been interested in the way the contact point between the blades on a pair …

hi every1~! I am a junior at high school, and I was thinking about doing intel project in physics over the summer. But I am not sure what should be the thesis of my project. I want my project to be completely theoretical; I may however use some experimental data to support my thesis. One reason for that I don't have any fancy machines to carry out the experiments by myself. So, do you guys have any idea as what I should look into? What should be the topic of my thesis? And idea/advice would be appreciated. Thank you.

http://www.nature.com/news/2006/060619/full/060619-6.html I can't help but think that what's being described here: Sounds an awful lot like the "Self-Configuring Self-Processing Language" Christopher Langan describes in the Cognitive-Theoretic Model of the Universe: http://en.wikipedia.org/wiki/Cognitive-Theoretic_Model_of_the_Universe

Hi. http://www.blacklightpower.com/ Miguel

http://www.physorg.com/news67773542.html Yay!

I'm looking to buy a generator. At the store, the guy (who barely speaks English) tells me that the generator is 30kV. I'm wondering what this equates to in terms of watts. Do I divide by 120/240V?

Bernard Cabane, one of the leading authorities of fluid dynamics, finally got a website up! It's got all the links, research (available for download) and explanations you could wish for. Check it out: http://www.bernardcabane.net http://bernardcabane.net

heya every1~! My question is that why the intensity of electric fields is same at any point in teh field...??... Let's say an electron moves closer to the positive side of the field, would not the force of attraction be more on that electron than the one that is not as much closer to + side?...

Hi, I am working on a final project for physics on this phyicist and need to know "the accomplishments of the phyicist in the world of physics" and "the specific contribution of the scientist to Quantum Theory". These are topics that need to be covered in the presentation and I am having a hard time finding the exact accomplishments if somebody could list and describe them for me that would be great. Thanks in advance.

In physics class today, my teacher told us that we will have a project where we have to make an egg launcher with an uncooked egg. Our mission is to launch the egg 2 feet away into a cup (With the correct amount of force). Bonus: If the egg didn't break, we'll get a perfect score, and don't have to pass in our lab report. If it does break, then we'll have to pass it in. I'll get more information tomorrow, with the details. Any suggestions how I can make an egg launcher that won't break the egg when it lands in the cup?

Haven't been on the forums for a while, been busy with school and stuff. But hey, i'm free now. Anyway, what i've been wondering about lately are tesla coils and railguns (not in relation to eachother, just wondering about two seperate things). Mostly tesla coils, though. From what I can recall, they generate very strong magnetic fields.. but what else is there to them? Also, how do railguns work, and are any actually in existance? I can't exactly find a very in-depth technical resource on them.

Hello freinds ! Can any one kindly explain me what properties of the molecules or atoms that make up the glass OR what phenomenon makes glass to transmit all light through them without being blocked as other solid materials do ? I have searched for it on the web. But the explanations were too technical to understand (I am not a Physics person). Some sites explained it like this ----- " an absence of electronic transition states in the range of visible light" -------- What does this mean. Can any one explain it to me in simple language ? Thank you very much !

Hey everyone! I found this really interesting article on Technology Review about a new technology that removes the sulphur from high-temperature fuel cells. The sulphur causes the eventual shut down of these cells, but with this new technology the cells continue working and are more practical and could actually provide clean, efficient energy to cities. Check out the full article here: http://www.technologyreview.com/read_article.aspx?id=16965&ch=biztech

Hi everyone, I am now working on a project, in which I use a kind of pulse functions as shown in the figures below ( I call them the 3rd, 4th and 5th models). I have spent about 1 month to mathematically generalize the function (the nth order model). However my mathematical background is not good, so I feel unable to do that though I can graphically draw the models for higher order (6th, 7th, ... order). I am now so worried about the problem because the deadline of the project is approaching. So can someone please help me? Thank you so much. the 3rd order model (the horizontal axis is time, and the vertical one is manitude) the 4th order model t…

Number 1- Here is the link for the bigger picture - http://i12.photobucket.com/albums/a203/soltaritroop/physics1.jpg Three Masses Connected to Pulleys. a) Free Body Diagrams for Each one b) Resolve the forces on each block into its Perpendicular Components c) What is the coefficient for Friction if the blocks have a constant velocity d) If the rope connected to M1 snaps, quantify the resulting motion of the two remaining blocks using the results fom ©. Im drawing a blank and i cant believe i dont remember how to do these 2) Link: http://i12.photobucket.com/albums/a203/soltaritroop…

http://news-info.wustl.edu/tips/page/normal/6845.html *boggle*

Electrical sparks through air are always viewed as transient, or at very least caused by alternating current. Is it possible to have a continuous direct current spark? If so, what is the lowest voltage that would be required to produce one, and then to maintain one, assuming the following parameters: 1cm air gap between electrodes standard air pressure standard air temperature in the surroundings no external wind What current would be produced by this, and what temperature in the spark gap. How bright would the spark be? If the spark is maintained, presumably the air on the spark track would turn to plasma? If so would its electrical resistance reduce,…

I've been looking more into Tesla's idea for wireless power and it turns out I grossly misunderstood it. I've discovered he intended to transmit electricity into the earth and air at the Schumann resonance, which is determined by the distance between the ionosphere and earth. His goal was ultimately to fill the Schumann cavity with non-Hertzian (???) waves, using resonance to gradually build the wave intensity until the cavity was effectively "filled" and devices could begin tapping into it. More power stations could be added as demand on the system increased. Possible? Impossible? Completely insane?

im sorry, i didnt know exactly where to post this, so just bear with me. i am also very new to stuff like this, so if any of my questions are based on wrong info, just let me know. thanks so when matter(M) comes in contact with anti-matter(AM), both are destroyed. the M and AM just inhabited this spot in space, and now, both are gone. so does this leave some sort of hole in space? -drew

http://www.smh.com.au/news/world/now-you-see-me-133-invisibility-cloak-in-design/2006/05/26/1148524886085.html