Search Results - Pendulum
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A pendulum is a weight suspended from a pivot so it can swing freely. [1]When a pendulum is displaced from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force combined with the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. From its discovery around 1602 by Galileo Galilei the regular motion of pendulums was used for timekeeping, and was the world's most accurate timekeeping technology until the 1930s.[2] Pendulums are used to regulate pendulum clocks, and are used in scientific instruments such as accelerometers and seismometers. Historically they were used as gravimeters to measure the acceleration of gravity in geophysical surveys, and even as a standard of length. The word 'pendulum' is new Latin, from the Latin pendulus, meaning 'hanging'.[3] The simple gravity pendulum[4] is an idealized mathematical model of a pendulum.[5] [6] [7] This is a weight (or bob) on the end of a massless cord suspended from a pivot, without friction. When given an initial push, it will swing back and forth at a constant amplitude. Real pendulums are subject to friction and air drag, so the amplitude of their swings declines. The period of swing of a simple gravity pendulum depends on its length, the acceleration of gravity, and to a small extent on the maximum angle that the pendulum swings away from vertical, ?0, called the amplitude.[8] It is independent of the mass of the bob. If the amplitude is limited to small swings, the period T of a simple pendulum, the time taken for a complete cycle, is[9]
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Showing 1 to 25 of 62 Articles matching 'Pendulum' in related articles. |
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1. Physics syllabus for IIT JEE exam
November 02, 2009
General: Units and dimensions, dimensional analysis; least count, significant figures; Methods of measurement and error analysis for physical quantities pertaining to the following experiments: Experiments based on using Vernier calipers and screw gauge (micrometer), Determination of g using simple pendulum, Young's modulus by Searle's method, Specific heat of a liquid using calorimeter, focal length of a concave mirror and a convex lens using u-v method, Speed of sound using resonance column, Verification of Ohm's law using voltmeter and ammeter, and specific resistance of the material of a w... (read more)
Author: Vanya Tiwari
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2. "My Grandfather's Clock."- Recapture the magic & build your own
October 22, 2009
Every child in high school learns that a pendulum's rate of swing (its period) is proportional to its length. This is the only factor that affects the period. Galileo discovered this in 1582.
Today's grandfather clocks are descendents of William Clement's clock from 1670. He had discovered that a longer pendulum meant more accurate time keeping. The long pendulum had to be enclosed to prevent children (and adults) playing with it. Hence the long-case clock was invented. The name Grandfather Clock comes from Henry Work's 1875 song, "My Grandfather's Clock."
If your parents or grandpar... (read more)
Author: pratiksha vaity
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3. The tools to prove your manifestation is happening !
October 01, 2009
The Tools of Manifestation
How do you prove that what you are “ manifesting” is working, and when it does show up, which one is the best for you to accept ?
The Laws of Attraction really work and when the things that you attract show up in your life, how do you know which of the dozen or so choices, is the best for you?
Grant Darbyson calls this process “ Manifestation as in “what you can Conceive, and Believe you will Receive”
In his forty day workshop journal, the object of your manifestation will show up between the fortieth and fiftieth day……and there will be anyw... (read more)
Author: Grant Darbyson
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4. Do Annuities Have a Place in Your Portfolio?
September 21, 2009
The great crash of 2008 and subsequent recession has gotten people thinking about risk again, which is a very good thing. The downside of bringing risk back into the forefront, of course, is that the pendulum is beginning to swing a bit too far back in the other direction. Fresh from experiencing staggering losses, investors have become wary of the market and are searching for ways to reduce risks. The "guarantees" marketed by many annuity providers have understandably caught the attention of the public.Do Annuities Belong In Your Portfolio?So do annuities belong in your portfolio? The answer ... (read more)
Author: Kyle Bumpus
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5. How to Build a Swing Set
September 03, 2009
A hanging seat that is commonly installed in children playgrounds, a swing set has a similar motion with a pendulum and is often made from wood or metal. This seat has different types, which include a tire swing, a porch swing, a toddler swing and a rope swing. If you want to install this in your garden or your backyard, it is important that you know how to build a swing set. In addition to these, it is essential to prepare all the necessary materials and tools that you need before starting the project.
How to Build a Swing Set
To avoid having difficulties and problems, it is importa... (read more)
Author: Robert Bell
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6. How to Build a Swing Set
September 02, 2009
A hanging seat that is commonly installed in children playgrounds, a swing set has a similar motion with a pendulum and is often made from wood or metal. This seat has different types, which include a tire swing, a porch swing, a toddler swing and a rope swing. If you want to install this in your garden or your backyard, it is important that you know how to build a swing set. In addition to these, it is essential to prepare all the necessary materials and tools that you need before starting the project.
How to Build a Swing Set
To avoid having difficulties and problems, it is importa... (read more)
Author: Kenny Leones
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7. Condo Loan Risk Reduction May be Creating More Problems
September 01, 2009
While this current economic crisis has most certainly been at least partially caused by the effects of the poor restrictions set on mortgages and home loans for a variety of types of real estate, home loans have seen a pendulum swing that is threatening to make economic recovery rather difficult at least in the realm of condo purchasing.
In the past and in the build up to our current economic struggle, mortgages for a variety of kinds of homes were fairly easy to obtain even if you were a particularly poor risk for the lenders. Many of the homes bought with these high-risk loans are now b... (read more)
Author: Nelson Stewart
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8. Mind Control Stories: How I Used Mind Control To Borrow Money...
August 27, 2009
Mind control isn’t really as bizarre as film and television make it out to be. It is simply the process of knowing how to handle situations and people. There’s no need for any swinging pendulum or hypnotic eyes. All you have to do is understand what makes people tick. If you still don’t believe me, perhaps I should share with you one of my personal mind control stories. I’ve heard and read enough mind control stories to realize when something similar happens to me. My story is simple; but at the same time, the actual moment made me feel like I did something great for myself. While I was gr... (read more)
Author: praveen kumar
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9. Moon Swims into Scorpio & Mars Enters Cancer & Mercury into Libra Squaring Mars (Aug. 24 to 26, 09)
August 19, 2009
With the waxing Moon moving into Scorpio our focus is more inwards and we are descending into our private inner world. The mood turns more somber and intense. Scorpio tends to extremes. The world is often perceived as black or white, good or bad and the emotional pendulum might swing fast from one side to the other.
The Moon is our Emotional Gauge Watching the Moon making her way through the zodiac every month visiting all the signs, can sharpen our self perception and awareness for our inner processes and the fickle nature of our emotions.
One of my spiritual teachers Ananda Giri ... (read more)
Author: Shakti Carola Navran
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10. A System That Works Like Clockwork
July 27, 2009
This Pendulum technique is based on the assumption that in any investment
arena the herd instincts of greed and fear will always be prevailing
somewhere in the stock market irregardless of the vehicle of investment that
is employed.
These emotions often cause stock prices to either fall or rise depending
which emotion is prevalent at the time. Eventually these extremes of stock
prices will eventually return to a natural equilibrium point or gravity
centre. Thus this action of the pendulum causes trends and cycles to occur
and these occurences can ... (read more)
Author: chris strudwick
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11. Google Says: No More Page Rank sculpting Using NoFollow Tag! Revisited
July 08, 2009
Another great swing in the pendulum! Google has made yet another shift in its algorithms, and this time it’s about Page Rank sculpting using nofollow tag. What is Page Rank sculpting? Page Rank sculpting is an enhanced SEO technique, by which the Webmaster’s and SEO’s can control how Page Rank flows within the side using nofollow tag. In simple words, you could extend more links to more important pages, without injuring a certain page’s rank—but gone are the days!
The leader of Google's Web spam team says “no more Page Rank sculpting using nofollow”. This may be a big blow for SEOcommunit... (read more)
Author: Shane David
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12. Hypnosis Weight Loss
June 08, 2009
You can lose weight easy with hypnosis and thereby be able to live a healthy lifestyle. For some people, loosing weight with hypnosis is something that they might never hear of. There are also some other set of people who might consider hypnosis as a method which involves going to a psychologist and getting hypnotized with the help of a pendulum and that he might keep moving in front of you in order to put you in a drowsy state. The actual fact is that hypnosis involves getting into the mindset of the individual whose negative behavior pattern needs to be altered at the subconscious level. ... (read more)
Author: natural remedies home remedies
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13. Is It Better To Have Faith or Better To Know
May 26, 2009
In our efforts to succeed in whatever direction we may be headed, it is good to have faith, but even better to know. There are but these two classes – and all humanity will one day have to be identified as of one class or the other. They will have to seek to go forward, or backward – progress or retrogress, for there is no standing still in a world of humanity in which all is action.
I found a wonderful way to illustrate this idea. It is about a college talk given by a grad student, on “The Law of the Pendulum.”
The student spent 20 minutes carefully teaching the physical principle ... (read more)
Author: Richard Pyatt
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14. Lose weight easy with hypnosis
May 05, 2009
You can lose weight easy with hypnosis and thereby be able to live a healthy lifestyle. For some people, loosing weight with hypnosis is something that they might never heard of. There are also some other set of people who might consider hypnosis as a method which involves going to a psychologist and getting hypnotized with the help of a pendulum and that he might keep moving in front of you in order to put you in a drowsy state. The actual fact is that hypnosis involves getting into the mindset of the individual whose negative behavior pattern needs to be altered at the subconscious level.... (read more)
Author: Colin Christopher
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15. Expand Your Business Faxing Versatility
April 28, 2009
Technically, Alexander Bain's 1842 image reproducer (a pendulum moved across one image, and passed along the electric signal to another pendulum which reproduced the image on chemically treated paper) is often considered the first facsimile [Fax] machine. However, it wasn't until the 1980's when the fax machine became a common fixture in business, and had its greatest impact in how companies could finally communicate. Need a contract signed fast? Fax it for a signature. Want to let your clients see your newest sales flyer? Fax the circular right over the phone line. Misplaced a purchase orde... (read more)
Author: Chris Haycox
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16. Analysis: Thai Protests Underscore Deep Divisions
April 13, 2009
Thai protesters and government troops face-off in Bangkok, 13 Apr 2009Thailand is once again in the grip of political unrest. The country has been on a political pendulum and has vacillated between civilian and military rule for many years. Last year thousands of opponents of ousted prime minister Thaksin Shinawatra, sporting yellow t-shirts, took over Bangkok's two airports. The move shut down the country's air links for a week and severely damaged Thailand's vital tourist industry. They claimed victory when the pro-Thaksin government was forced out by a court ruling. Now it is the tur... (read more)
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17. The Congreve Clock
March 24, 2009
The Congreve clock is a timepiece which was invented by Sir William Congreve in the year 1808. Unlike a traditional pendulum based clock, the Congreve clock uses a ball rolling down a zigzag path to regulate and monitor the passage of time. While his was not the first rolling ball clock to be invented, Congreve’s model is notable in that it improved heavily on earlier designs.
This unique timepiece works by setting a ball to roll down a zigzag track. The length of each track is set specifically, to control how long it takes for the ball to reach the end. When the ball reaches the end of ... (read more)
Author: Joey Pebble
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18. Grandfather Antique Clock
March 20, 2009
It is said that Galileo Galilei, while dozing in the cathedral at Pisathat and timing the swaying to and fro of lamps with his own heartbeat, thought up the idea of the pendulum clock. Thankfully the Holy Inquisition didn't spot his undevout thinking and Galileo returned home to work on his ideas for the pendulum escapement. It was not until 1656 however, that a pendulum was designed into a clock as a regulating device by the Dutchman, Christian Huygens - probably the original Grandfather Antique Clock.
We have to remember however that the genius Leonardo da Vinci had already thought out ... (read more)
Author: Ben Frank
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19. The Modern Use of the French Period Styles
February 23, 2009
The world has often turned to Paris for its fashions, so it is small wonder that French house furnishings should play their part in society. There is sufficient variety in styles as distinctive and different as the Henry II and Louis XV to meet all tastes and even follow the swing of fashion's pendulum. One point must be kept clearly in mind in working in the French periods and that is that they are absolute. The successful introduction of anything not French into a French room, unless it be something Chinese, is such a difficult problem that it is better avoided; while a few pieces of French ... (read more)
Author: Allison Ryan
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20. Cuckoo Clocks Striking the Hour
February 17, 2009
Back in the fourteenth century mechanical clocks appeared. A bell sounded every hour. These clocks did not have hands or faces. The speed of the clocks movement was driven by weights and springs. The most important event in clock making took place in the early nineteenth century. It was the introduction of mass production and interchangeable parts. Before this time clocks were only available to the wealthy.
The cuckoo clock is typically pendulum driven and strikes the hours using small bellows and pipes that imitate the call of the common cuckoo in addition to striking a wire gong. This ... (read more)
Author: Barbara Tobiasz
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21. Better than Ambien...Sleep with Brainwave Entrainment
January 04, 2009
Do you know you can synchronize your brainwaves and achieve better sleep? This article from the eBook, ABZzz's of Sleeping Insomnia-Free focuses on the letter 'B' and refers to brainwave entrainment. What is brainwave entrainment? Entrainment, a physics principle, refers to the synchronization of two or more rhythmical cycles where vibrations of one object will cause the vibrations of the other object to oscillate at the same frequency. For example, if two pendulum clocks are placed next to one another, in time they will gradually synchronize to one another. Brainwave entrainment is... (read more)
Author: Glenda Sparling
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22. The Gambler - Do I Hold, Fold Or Run?
December 29, 2008
The Gambler - Do I Hold, Fold Or Run? Today's home buyer is concerned with a variety of things: good neighborhoods, good schools, employment opportunities, quality recreation - but overriding everything are the questions, "Should I buy now. Have prices bottomed out? Will the price be lowered later? Should I rent? Watchful waiting is a solution for prostate cancer...maybe it's the solution here as well?" As a Realtor we have seen the pendulum swing from the Seller's side of the table way over to the Buyer's side. It wasn't so many years ago that you'd come to Bellingham, Washington... (read more)
Author: Rich Johnson
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23. Pesticides and their Benefits
November 05, 2008
The main reason for the bad rap is the same as the one in the medical field: over use. Just as it was over use of Penicillin by doctors in the U.S., people in general tend to think that "more is better" in the case of chemical pesticides too. So now the pendulum seems to be swinging to the other extreme in our society, and it's all or nothing - so going 100% green and chemical free is the latest and greatest cure all to stop garden pests.The good news for those who are frustrated or confused is that there are ways to use chemicals responsibly with minimal impact on ourselves and our environm... (read more)
Author: Monique Swann
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24. Easy Access to Your Inner Wisdom
October 27, 2008
Intuition, sixth sense or gut instinct. What do these really mean? I like to think of intuition as the quiet connection to the wisdom of our soul or expanded self. Our expanded self is always present, patiently waiting to guide us; we need only to listen and be aware.
The use of intuition is often scorned in today's rational, logic-driven society. As a child you were taught the scientific method, to question and look for proof before making decisions or taking action. While such behaviors can positively affect your life they severely limit your perspective. You are limited to only w... (read more)
Author: Becky Kimes
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25. The Biggest Pendulum Clock in the World
September 30, 2008
Erwin Sattler is one of the oldest manufactories in Germany. It became highly reputable in the world owing to its most accurate watches and unique watch accessories. Masterpieces by Erwin Sattler have every right to be called an example for everybody.
Timepieces by Erwin Sattler, whose exclusive distributor is the network of boutiques LeCadeau, has been fascinating the customers with their posh and complicated watche for 50 years already. And every new masterpiece by Erwin Sattler becomes a sensation in the world of watchmaking.
And now to celebrate the 50th anniversary of Erwin Satt... (read more)
Author: Johnatan Maxwell
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