Search Results - Experiments
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In scientific research, an experiment ( Latin ex- periri, "to try out") is a method of investigating causal relationships among variables, or to test a hypothesis. An experiment is a cornerstone of the empirical approach to acquiring data about the world and is used in both natural sciences and social sciences. An experiment can be used to help solve practical problems and to support or negate theoretical assumptions. 'Controlled experiments' Many people in science such as scientist can do an experiment or test something by using the scientific method.The steps are make an observation, ask a question, form a hypothesis, test the hypothesis, analyze the results, draw a conclusion, and comunicate results. The reason you test a hypothesis is so you can prove your question 100% right or wrong. An example that is often used in teaching laboratories is a controlled protein assay. Students might be given a fluid sample containing an unknown (to the student) amount of protein. It is their job to correctly perform a controlled experiment in which they determine the concentration of protein in fluid sample (usually called the "unknown sample"). The teaching lab would be equipped with a protein standard solution with a known protein concentration. Students could make several positive control samples containing various dilutions of the protein standard. Negative control samples would contain all of the reagents for the protein assay but no protein. In this example, all samples are performed in duplicate. The assay is a colorimetric assay in which a spectrophotometer can measure the amount of protein in samples by detecting a colored complex formed by the interaction of protein molecules and molecules of an added dye. In the illustration, the results for the diluted test samples can be compared to the results of the standard curve (the blue line in the illustration) in order to determine an estimate of the amount of protein in the unknown sample.
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Showing 1 to 25 of 328 Articles matching 'Experiments' in related articles. |
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1. Keys to Great Science Fair Projects Using Kids Science Kit
November 20, 2009
To get really good science fair projects from pre-packaged kits takes some creativity, but it can be done. Though many kids science kits are designed with specific experiments in mind and may even come with detailed instructions, it’s probably best to approach the kit as a set of tools that will help you in your own unique research. With this approach, a great kids science kit can help you stand out from other science fair projects.
For instance, one student selected a “miniature greenhouse” science kit, which contained seeds, a flat plastic container of soil, and a clear plastic “greenho... (read more)
Author: Joe Kanooga
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2. 3 Grades of Chemicals for Thames Kosmos Chemistry Sets
November 20, 2009
Chemistry sets from brands like Thames Kosmos, Scientific Explorer and Powertech provide children with hours of educational entertainment. The great thing about these sets is they provide all the chemicals and materials required to conduct the experiments. But what do you do when the chemicals have all been used?
Walmart seems to have just about everything but have you ever found the chemicals aisle? Not only are chemicals hard to find but who even knows what to buy? This article explains the difference between 3 grades of chemicals so you can know the right chemicals for your next schoo... (read more)
Author: Joe Kanooga
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3. Laboratory Chemicals
November 19, 2009
There are many chemicals which are widely used in school labs, college labs and industrial labs. Laboratory chemicals include organic and inorganic chemicals, test paper – litmus papers, acids and solvents, media culture and pH papers.
Laboratory provides controlled conditions where measurement, scientific research and experiments are performed. Such tasks require the use of different chemicals, equipments and even toxic elements, without which such experiments is withheld. Now-a-days there are many research labs that constantly work on medicines and drugs, food products, medical equipmen... (read more)
Author: Tradeport India
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4. Cook and Taste the Delicious Indian Food - The Dishes Are Really Palatable
November 19, 2009
India is a land of various traditions and cultures. The diversity is reflected also in Indian food. Each Indian culture has its exclusive and unique cooking style. Over the years every new wave of the settlers in the country has brought with them their individual cooking practices and with time they blended into the Indian food.
The pleasant and the tasty dishes are rustled up in each and every corner of India. Though the traditional recipes scores high, new experiments with the food is common even today. The Indian cuisines contain an array of delicacies that contain both spicy and hot a... (read more)
Author: sterlenkamryn sterlenkamryn
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5. Services Offering by Carpet Cleaning New York
November 19, 2009
No one can deny this fact that “cleanliness is next to godliness” so this fact, has established day by day, and proved it’s authenticity with different, observations and experiments. Due to health related issues, now people are going to emphasize, this important fact of cleaning. Professional services are the best possible ways for carpet cleaning, especially regarding your better future. The carpet cleaning New York has proved through survey that approximately 45% people used to have spreading carpets in their homes floors.
The dust particles are actually generated, from the unclean and ... (read more)
Author: allot john
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6. Divisions of modern magic
November 19, 2009
Modern Magic has evolved until now it may be classified into three major divisions with regard to its effect on the audience: 1 - Effects which are accomplished by mere physical means. Tricks with cards, coins, handkerchiefs, etc. - things usually employed in a magical performance. In this division are effects which people believe they could do themselves if they could discover the "Modus Operandi." But you know, of course, that they seldom discover the clever magical principles. You already know many puzzling experiments which come under this division. 2 - Experiments bas... (read more)
Author: David Hertz
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7. Serving Trays: Make It A Worthwhile Endeavor
November 16, 2009
There are many ways to make it a really special dining experience for your guest if you scrutinize every related factor associated with it. Likewise, you need to think beyond others in going creative with your experiments. This time, pay a bit attention towards serving trays and you would see the positive changes all around you. These trays do play a significant role in carving the image of a restaurant or hotel. Hence, when it comes to Restaurant supply of such trays, most of the hoteliers check out all the options before deciding upon the one. We all would agree on one point that hospitality... (read more)
Author: Manish kumar
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8. The History of Electricity
November 13, 2009
In school we are usually taught that Thomas Edison discovered the light bulb, and hence, discovered electricity. This is simply not the case. There are many contributors to the discovery of electricity, predating Edison by over 100 years.
The first most important event to note in the discovery of harnessing electricity is in 1752. Benjamin Franklin's kite experiments were the first to prove that lightning is electricity. He also understood that electricity had both positive and negative charges. All further knowledge of electricity was based on his experiments and understanding.
In t... (read more)
Author: Amanda Yanik
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9. The Suspected Cause Of The Cancer
November 13, 2009
As one of the top five most deadly killers in the world, cancer has been examined by so many medical experts. So far, they still haven’t found the perfect healing method for the cancer patients. But even so, they have managed to invent some methods to postpone or at least to slow down the development of the cancer cells. Some other experiments were mainly conducted to find the causes of the cancers. There are so many things that have been suspected as the causes of the cancer disease. But somehow, the experts still haven’t been able to clearly mention the causes of the cancer disease. So far, ... (read more)
Author: Hawie Tan
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10. Integrating Your 4 Freedoms (Part 5 Of 9) - An Experiment In Awareness
November 12, 2009
Developing an Empirical Awareness of the Four Freedoms
You can do simple experiments to comprehend that all elements of you are interconnected.
1. For 30 seconds think a very negative thought, for instance, your partner has left you, you have been fired, or your home has burned down. Stop the thought and turn your attention to your feelings. What emotions have come up in you? Now focus on your body. Do you feel tension or pain anywhere? Notice that just one intense thought has affected your whole system.
2. Do some conscious emotional release. For 30 seconds scream out l... (read more)
Author: Al Link
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11. Lab Coats Other Than The Traditional White
November 12, 2009
If you're in a position that requires wearing lab coats or you're in the healthcare industry working with patients, a lab, consulting, conducting medical experiments or investigations, or working with animals a lab coat will protect your clothing. They also add a professional look. If you generally order the same type of coat and have not shopped around to see what's new, here is a bit of information that may help you change your selection.
Lab coats lend a professional look to the business environment. They make a big statement. Many people trust a professional wearing a lab coat. There ... (read more)
Author: Andy Z
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12. BioShock Game - An Underwater Saga
November 07, 2009
The BioShock game is based on a storyline of the novel 'Atlas Shrugged', and spins around the geopolitical situations. The game is terrifying as it occurs in Rapture, the undersea, that deals with the narrator as the protagonist in this game. BioShock refers to the scientific experiments that were being transpired in Rapture and were left unknown to people.
The game presents a rare storyline that is exemplary having excellent audio and visuals, besides looking sensational. The graphics are above the expectations making this game look sensation while holding a nice frame rate, yet the zomb... (read more)
Author: Roberto Sedycias
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13. Fall/Winter 2009-2010 Shoes Trend
November 05, 2009
As the new season came, it’s time to update your wardrobe and prepare new shoes for the season. Here I’d like to share some information and find out the latest shoes trend.
Designers continue their bold experiments with the new shapes and constructions for stylish and fashionable shoes of today.
Fashion shoe trends this season will differ considerably from summer collections with their fun and brightness. First of all, there will be more strict forms and colors. However it is necessary to mention that new autumn designer collections will be much more practical than the last year’s. ... (read more)
Author: Tina Smith
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14. A History of Subliminal Messages
November 05, 2009
This gives a clue to its sense – and it honestly earnings in rank which is less the threshold of our perception.
The Growth of Subliminal Messaging
Traditionally subliminal messages are concept of as film based. Indeed, generally first experiments involved displaying flashing text subliminals on a part of film. These types of messages have been used in advertising and furthermore a lot in politics, and despite being illegal currently they are still used. It was just previous year that an inquiry was held into McDonalds using a subliminal advert of the food group – pro only single fra... (read more)
Author: Peter Gut
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15. Integrating Your 4 Freedoms (Part 3 of 9) - Remote Viewing
November 05, 2009
Outside the realm of physics, other experiments have shown that there are connections between mind and matter that can’t be explained by the old model of separation. Studies starting in 1972 and lasting over two decades were conducted under the sponsorship and supervision of the CIA and the United States Department of Defense. These experiments involved sets of two people who had no contact with each other. One person acted as a remote viewer while the other randomly selected a location to visit anywhere on the planet. Although the remote viewers had never physically been there, they accuratel... (read more)
Author: Al Link
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16. 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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17. Signal and System Kit Provides Abundant Experiment Modules
November 02, 2009
Toronto, Canada – GAO Embedded (www.GAOEmbedded.com) offers its signal and system experiment kit which boasts many analog circuit functions modules for signal and system experiments It is also equipped with a JTAG interface for digital signal processing (DSP) experiments such as mathematics operations, digital oscillator, Fast Fourier Transform (FFT), task scheduling and prioritization of DSP/BIOS, thread management of DSP/BIOS and AD sampling. The signal and system experiment kit, modelSSP2500, provides a variety of digital signal output waveform sources controlled by a DSP. It offers enhanc... (read more)
Author: Perry Keller
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18. Water Testing Kits for scientific and environmental testing
November 01, 2009
Water testing kits can be used for a variety experiments and testing purposes. They are used by scientists, engineers and pool/spa treatment professionals alike. One type of water testing kit is a salinity meter which measures the levels of salt in mainly water and food. Salinity meters are particularly useful for the measurement of salt in pools and aquariums. Another type of water testing kit is a pH meter. Ph meters are suitable for testing pools, aquaculture and for horticultural purposes. pH meters are extremely accurate, portable and easy to use. Conductivity meters are used to ... (read more)
Author: Jonathan Proctor
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19. ..American Fast Food Restaurants
October 29, 2009
As a staple of life our need to eat has developed from a basic form of simply feeding our bodies with the fuel it requires, to a complicated art of presentation and taste combined with our intrinsic need to experiment with everything we see, touch, smell and of course taste.
The ever-increasing divergence of foods that is now available to us at our local stores and eating-places only help to confuse and tantalise us into new culinary experiments and delights.
From the sandwich shop to the award winning restaurants, we can always find a place that prepares and sells the food we want... (read more)
Author: dinesh kabsuri
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20. Audiomind releases his debut CD
October 28, 2009
Audiomind releases his debut CD "ONE" and New EP "Ocean" ! Audiomind releases his debut CD "ONE", full of original electronic dance and listening music enriched of native instruments, characterful vocals, experiments and natural recordings. CD contains 10 tracks and you will find there tracks Magion, Istanbul, Impose Me a Love LOve Love, which reached high places of charts of worldwide electronic music hitparades. You can listen and buy the CD in professional four-page booklet from every place worldwide on WWW.AUDIOMIND.NET, or in near future on Amazon.com. At the same time Audiomind... (read more)
Author: Petr Svoboda
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21. Replica Jewelry Necklaces are an Affordable Choice!
October 22, 2009
Replica Jewelry and other replica jewelry at affordable prices. We specialize in the sales of brand new replica jewelry wholesale jewelry. ">Be it a teen or a famous movie celebrity, every individual wishes for unique jewelry neckpieces that overall enhances their personality and gives them the confidence of wearing something very exclusive and special. Those days are gone, when jewelry designing was limited to an extent and not many experiments were used to be tried. Today, Jewelry necklaces are available in various varieties ranging from costume jewelry to precious stones and metals, availa... (read more)
Author: Jennet Smith
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22. Make a Career as a Clinical Research Assistant
October 22, 2009
A Clinical Research Assistant is responsible for initiating and monitoring the progress of a clinical trial. Good CRA are critical to successful medical experiments. They bear the responsibility of ensuring that study protocols and Good Clinical Practices are adhered to, data collected during the research is scientifically complete, and that human study subjects are well taken care of during and after research. In short, they make sure that medications, medicinal devices, diagnostic products, and treatments being developed for human use are safe and effective while taking care of human subject... (read more)
Author: Jenny Franklin
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23. Revealed: Top Two Google Ranking Factors Tips
October 22, 2009
During this article I make known come again? I believe are the two largely essential ranking factors used by Google.
My findings are as a effect of my ongoing optimization experiments of my network of web sites on Google.
The top two Google ranking factors are:
- PageRank - Incoming Text Link Keywords
I'll explain each one in more factor and come again? You MUST see to to take advantage of the effectiveness of each one element.
1. PageRank
PageRank is resolute by the total and quality of family to a contact. Both the quantity and quality of text family are esse... (read more)
Author: Ken Chin
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24. Garment Software - a boon for the textile industry
October 22, 2009
Software industry is full of different kind of experiments & software application solutions for almost much type of job & problems. Here we are going to discuss about Garment Software & Home Textile software. Garments describe the apparels or in easy word clothes. While taking in to consideration we notice that garment industry is important part in the manufacturing population. Though the advent of IT into textile industry is a little bit late, still it has gained popularity with in a brief period of time.
It is obvious that large scale manufacturing of garment needs the support of a goo... (read more)
Author: Lucky Rajput
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25. The Game of Having Or Not Having a Relationship
October 19, 2009
Sometimes people shift from a relationship to another, so if we classify their period as a couple, we see that there are 3 types of relationships:
1. One night stand
2. Temporary
3. For a long period of time
People can have no relationships at all, but taking into consideration that we are human beings and like companionship, this is hardly possible.
Being in a relationship is not easy; there are rules that need to be considered. At first people can have many one night stands and temporary relationships, because we all want to make experiments to see what suits us. The... (read more)
Author: Marius Gherghinescu
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