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Posted in General Discussion / Science & Technology
Author: uNiT Total-Replies: 3 My friend recently took a physics test, and was stumped on a problem. It was a random problem not related to their current subjects, and here it is: Problem: You hear a tone and you recognize the frequency as 243Hz. You hear another one, but don't know the frequency, but you count the beats of the combined tones as 24 beats in 3 seconds. What is the frequency of the second tone? (In formula sheet, you have: f_beat = |f1 - f2| ) He came up with 235. The closest choices on the answer sheet were 264 and 226. Here was my attempt at solving.. QUOTEfbeat = |f1 - f2|fbeat = |243 - x| fbeat = fb Remember that Frequency = Occurances / Time; and that Hz is over a period of 1 second so.. fb = O/C fb = 24/3s fb = 8bps or fb = 8hz so 8hz = | 243 - 235 | x = 235? But then we see thats wrong, proving me to be stupid. So lets say there was a second in between the beats. fb = O/C fb = 24/2 fb = 12hz 12hz = 243 - 239 Still doesn't work. Hmm...Well but lets say the teacher errored in his positioning of the absolute values. In which case we could wonder if.. -12hz = 243 - 255 255 isnt on the answer sheet either? So damn...what about averages? say fb = average of f1 - f2. 8 = 243 - f2 / 2 243 - 227 = 16 x = 227? So ive come up with x = 235, 239, 255, and 227. 227 is very close to 226. Regardless, I think this is the professors error Any ideas?
Sat Sep 15, 2007
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Posted in General Discussion / Science & Technology
Author: Amadeus Total-Replies: 40 May 19 Star Wars III will on the cinema. There is a weapon called lightsaber. It's a sword which is made lazer. And there is no steel. What do you thing about this. Can it be tru one they. Will somebody made it one day.
Tue May 17, 2005
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Posted in Computers & Tech / Hardware Workshop
Author: illusion Total-Replies: 9 Some times It Gives me a message Of "Physical Dump Memory " or sumthing Like Dat.. my screen become bluish and it Shut down automatically .. then I reinstalled windows... and that problem was solved.. but I still cant figure wht the main probblem was... was it some hardware failure Or wht,,,?? do u guys KNow ? if yes then tell me maybe It'll solve other problems 2
Sun Oct 10, 2004
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Posted in General Discussion / Computer Talk
Author: planettech9 Total-Replies: 3 QUOTEA database management system provides the ability for many different users to share data and process resources. But as there can be many different users, there are many different database needs. The question now is: How can a single, unified database meet the differing requirement of so many users?A DBMS minimizes these problems by providing two views of the database data: a logical (external) view and physical (internal) view. The logical view/user's view, of a database program represents data in a format that is meaningful to a user and to the software programs that process those data. That is, the logical view tells the user, in user terms, what is in the database. The physical view deals with the actual, physical arrangement and location of data in the direct access storage devices(DASDs). Database specialists use the physical view to make efficient use of storage and processing resources. With the logical view users can see data differently from how they are stored, and they do not want to know all the technical details of physical storage. After all, a business user is primarily interested in using the information, not in how it is stored. One strength of a DBMS is that while there is only one physical view of the data, there can be an endless number of different logical views. This feature allows users to see database information in a more business-related way rather than from a technical, processing viewpoint. Thus the logical view refers to the way user views data, and the physical view to the way the data are physically stored Notice from Yordan: Please do not post copied text on this forum. Posting copied text can lead to a ban.
Sat Jul 4, 2009
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Posted in Computers & Tech / Networking
Author: sandeep Total-Replies: 4 hi all, Have you ever wondered that why there is two level of addressing in OSI model? If IP address can identify any machine acrosss networks then what's the need of Physical Address. Theoretically Data Link layer transfers data to adjacent node by using physical address, but that can also be done by using IP address. Have you ever pondered about that point? Here's what i think. Initially computers were connected using various different LAN topologies like token ring , ibm sna , ethernet, etc All these tech. correspond to data link layer and had there own addresses [ mac addrress in case of ethernet.] Now these networks using diff. lan tech. were incompatible with each other ie. u can't interconnect a network using token ring to a network with ethernet because both uses diff. adressing scheme to identify computers on lan. To solve this problem a neutral adressing scheme was required which was to be independant of lan tech . and sit above icompatible lan tech. to interconnent them. Thats why tcp/ip layer was introduced with ip address as a means to identify any end system in whole internet. Thus it can be said that Physical address is always needed but IP address may not be needed always. Though the above statement is hard to believe because TCP/IP widely used on every device that does some communication. Do leave your comments. Regards.
Sun Apr 23, 2006
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Posted in Astahost / Asta ANSWERS!
Author: (G)adrianliem Total-Replies: 0 where does mysql database physical files is stored?[hosting] What To Delete And What To Keep ? hi all :) I would like to know where does mysql database physical files is stored in the hosting file system? what folders that we need to transfer if we moving them into another hosting? thanks! -reply by adrianliem
Fri Jun 26, 2009
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Posted in Computers & Tech / Operating Systems / Windows (All Versions)
Author: derouge Total-Replies: 15 Hey, just thought I'd post this here and see if anyone knew how this problem could be remedied. I went to turn my PC on the other day and ended up getting a major error - a dreaded blue screen! It mentions turning off caching and shadowing, easy enough? Not. I poked around in BIOS and was unable to find either a caching OR a shadowing option. Is there any other ways to disable these features? Would any other information help? Windows XP Pro with Service Pack 1 .. Intel Pentium 4 processor .. BIOS version is 2350_A02. So yeah, ANY help appreciated! 
Sat Sep 17, 2005
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Posted in Computers & Tech / Search Engines / Google
Author: Niru Total-Replies: 10 Hi all... One new news from Google GMail Team!! GMail Paper Get your Physical copy of any message by Mail ( Not eMail  ) with the click of a button!!  Yes its true guys!! Its completely FREE only  ( Its not 'April Fool' Special Announcement )You will get it within 2-4 business days as parcel! You can You can read, touch it. Or even move it to your Original Trash Can!  Here is the Image from Google:  Check this page: http://mail.google.com/mail/help/paper/more.html  QUOTE   Is it free? Yes. The cost of postage is offset with the help of relevant, targeted, unobtrusive advertisements, which will appear on the back of your Gmail Paper prints in red, bold, 36 pt Helvetica. No pop-ups, no flashy animations—these are physically impossible in the paper medium. How about attachments? All part of the deal. Photo attachments are printed on high-quality, glossy photo paper, and secured to your Gmail Paper with a paper clip. MP3 and WAV files will not be printed. We recommend maintaining copies of your non-paper Gmail in these cases. Is there a limit? You can make us print one, one thousand, or one hundred thousand of your emails. It’s whatever seems reasonable to you. But what about the environment? Not a problem. Gmail Paper is made out of 96% post-consumer organic soybean sputum, and thus, actually helps the environment. For every Gmail Paper we produce, the environment gets incrementally healthier. Regards, Niru
Sun Apr 1, 2007
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Posted in Free Web Hosting / *FREE WEB HOSTING REQUESTS / FREE WEB HOSTING : NEW ACCOUNT..
Author: rockarolla Total-Replies: 2 To generate an application for free web hosting please click here: Free Web Hosting Request Form I would like to request free web hosting from Astahost. Please find my application below.
I have read, understand, accept, and agree with the Terms Of Service, Acceptable Use Policy, and The Forum Rules: YES, I Agree! Thank You, rockarolla
Application for free web hosting generated using req_form.php 3.1.9 by vujsa.
Tuesday, February 05, 2008 05:25:11 AM GMT
Tue Feb 5, 2008
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Posted in Computers & Tech / Operating Systems / Windows (All Versions)
Author: ElFoReal Total-Replies: 13 Oke my question is the following, A friend of mine wants to format his C: drive because it`s runnin out of space and is verry slow.But he has programmes installed on his D: drive which is NOT a physical other drive it`s just a partition on his ONE physical HD. The question is if he was to format the C: partiton would that effect the programmes installed on the D: partition?
Tue Jun 14, 2005
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Posted in General Discussion / Science & Technology
Author: docduke Total-Replies: 7 I am a retired theoretical physicist. I did numerical modeling of high-pressure physical processes, such is in the interior of the earth and the sun. The physical processes involved are very difficult to model unless some experiments can be done. Los Alamos National Lab (LANL) in New Mexico instrumented a lot of nuclear experiments so that the equation of state at very high pressures could be determined for a lot of different materials. Many of the underground nuclear detonations took place in environments that looked more like anthills than plain holes in the ground. As the pressure wave expanded from the detonation, many different materials were tested for their dynamic response to the very high pressures to which they were exposed. With a lot of data points, LANL scientists could construct the "equation of state" [EOS] (pressure-volume-temperature, and other tables) for ranges of pressure and temperature that simply were unreachable any other way. This data then proved very valuable in modeling the physics of the interior of the sun, for example. The EoS tables for lower-atomic-weight atoms were made publicly available (higher-Z ones were classified). The result was the SESAME Tables. That data from a "weapons lab" found its way into many very non-military applications. If you are interested in seeing more of these explosion pictures, I can recommend two DVDs: 1. World's Most Powerful Explosions, which is available via Amazon from third parties starting at $7.98 (plus shipping).
Experience the most frightening explosions ever caught on videotape -- from a gas station erupting into a giant mushroom cloud in downtown Seol, Korea... to firefitghters engulfed in a fireball caused by a backdraft. Watch as a Brazilian fireworks show turns into a war zone... and step inside ground zero of a nuclear blast. Learn how experts level a 20-story building using high explosives, and see what happens wihen a billion-dollar rocket detonates mid-air. This episode will show the force, destruction and human drama behind the World's Most... Powerful Explosions.
2. Trinity and Beyond: The Atomic Bomb Movie Starring: William Shatner, Edward Teller; Director: Peter Kuran (Director's credits: Star Wars, Star Trek II & V, Robocop, Addams Family), starting at $19.96.
Peter Kuran dedicated over three years to the production of this amazing fillm which chronicles the top secret, strange and visually compelling history of the design, production and testing of Atomic and Hydrogen bombs by the United States. In addition to uncovering rare film from top secret government archives, Kuran traveled far and wide to obtain startling footage of nuclear bomb tests conducted by Great Britain, China and the largest atomic explosion ever created by Russia. The quality of the images is remarkable and required the development of a new film restoration system to preserve these haunting images for generations to come.
Narrated by William Shatner, this award-winning production features an original score performed by the Moscow Symphony Orchestra and an interview with Dr. Edward Teller, a developer of nuclear weapons and ... This second DVD even has a bonus 3D section (and suitable glasses) plus the Warning! This disk contains Extreme Low Frequency Dynamic Range. That is, the makers of the DVD take no responsibility for the state of your sub-Woofer after you have "listened" to their DVD! 
Fri Aug 15, 2008
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Posted in Others / Gaming / First Person Shooter Games (FP..
Author: xboxrulz Total-Replies: 12 It's great to have the beta! The graphics and physics are great in the new Halo 3 Beta. The graphics are NOT the same as Halo 2 as some cows (Ps3 fanboys) have said. Maps are a lot bigger and expansive. Some guns like the Assault Rifle and the Battle Rifle has been dumbed down so that it's no longer all guns. However, the game is not glitch-free either. Some glitches include: zoom in when you didn't even press the zoom button. Messed up colour when you're firing at people and you're being fired at the same time. Here's some shots I got and related images of Halo 3 Beta.   Have u guys got yours yet? xboxrulz
Thu May 17, 2007
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Posted in General Discussion / Science & Technology
Author: Ananya Total-Replies: 0 Imagine a physically challenged patient without the help of a caregiver having a sip of coffee brought to him/her by a robot that was being controlled by the patient's thought itself. That reveals the innate beauty of this latest technology called Mind Control. This magnificent act of robot has been rendered possible by a tiny sensor about the size of a baby aspirin implanted in the brain of patient which monitored electrical activity of a few dozen brain cells. The chip then transferred information by sending signal to a computer that translated those signals into a valid command that armed the robot with adequate information to act so as to help the patient as required. This same beautiful technology capable of bringing smile in the faces of millions of physically challenged people is also finding its worth in the battlefield. Its said that some Afghanistani soldiers possess sixth sense as they can wonderfully visualize way ahead signs of roadside bombs, disturbed earth or anything that is just out of the place resulting in a great difference in the battlefield by dragging someone from the claws of death. Scientists are now set to equip every soldier with this ability to remain in a win- win situation. The device exploits what Neuroscientists call P300 wave that is significant of unconscious recognition of visual object. 300 basically signifies 300 milliseconds after which it stimulated.But still the threat remains as the brain can take several seconds to interpret what it has seen and these seconds can actually translate into death if not properly assessed on time.Electroencephalogram(EEG) comes to rescue as its capable of spotting P300 signal and when that is connected to a sophisticated computer can interpret and alert instantaneously.
Fri Aug 31, 2012
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Posted in Computers & Tech / Operating Systems / Windows (All Versions)
Author: yordan Total-Replies: 3 My C: disk is currently taking my own physical disk. This is not optimal, because I love having a small system disk and a big data disk ; in case of a huge system crash, this would allow me to recover from my last ghost image. Now vista allows me to shrink the c: volume. Unfortunately, vista allowed me to shrink only by 40 gigs. Then it allows me 0, due to cache and snapshots activated. How can I manage shrinking my C: disk down to 50 gigs ? This would mean remove 200 gigs ? Please tell me.  Yordan
Sat Jan 10, 2009
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Posted in General Discussion / Science & Technology
Author: CrazyPensil Total-Replies: 8 I'm quite keen on nuclear physic and chemistry, but due to my teenager being, I'm not able to get all the knowledges I wanna gain=( Now, I wanna ask: In a Hydrogen bomb, We get a lot of H atoms under a big pressure; when the bomb collapses, they come too close, join together and form a He atom... My chemistry teacher told that that action frees a freat energy... But where is that energy taken from?! That's the question I ask you, dear ladies and Jeantlemen.... Hope you're good enough at Those subjects=)
Mon Oct 16, 2006
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