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Speed dating
Speed dating is a formalized matchmaking process or dating system whose purpose is to encourage people to meet a large number of new people. Its origins are credited to Rabbi Yaacov Deyo of Aish HaTorah. originally as a way to help Jewish singles meet and marry. [ 1 ] [ 2 ] [ 3 ] SpeedDating . as a single word, is a registered trademark of Aish HaTorah. Speed dating . as two separate words, is often used as a generic term for similar events.
Contents
Organization [ edit ]
Usually advance registration is required for speed dating events. Men and women are rotated to meet each other over a series of short "dates" usually lasting from three to eight minutes depending on the organization running the event. At the end of each interval, the organizer rings a bell, clinks a glass, or blows a whistle to signal the participants to move on to the next date. At the end of the event participants submit to the organizers a list of who they would like to provide their contact information to. If there is a match, contact information is forwarded to both parties. Contact information cannot be traded during the initial meeting, in order to reduce pressure to accept or reject a suitor to his or her face.
There are many speed dating events now in the United Kingdom. Canada. and the United States. Requirements for each event vary with the organizer. Specific age range based on gender is a common restriction for events. Many speed dating events are targeted at particular communities: for example, LGBT people, polyamorists. [ 4 ] Christians. [ 5 ] Graduate student speed dating events are common. [ 6 ]
Practice [ edit ]
Some feel that speed dating has some obvious advantages over most other venues for meeting people, such as bars, discotheques. etc. in that everybody is purportedly there to meet someone, they are grouped into compatible age ranges, it is time-efficient, and the structured interaction eliminates the need to introduce oneself. Unlike many bars, a speed dating event will, by necessity, be quiet enough for people to talk comfortably. Speed dating is for singles.
Participants can come alone without feeling out of place; alternatively it is something that women who like to go out in groups can do together. [ 7 ]
Because the matching itself happens after the event, people do not feel pressured to select or reject each other in person. On the other hand, feedback and gratification are delayed as participants must wait a day or two for their results to come in.
The time limit ensures that a participant will not be stuck with a boorish match for very long, and prevents participants from monopolizing one another's time. On the other hand, a couple that decides they are incompatible early on will have to sit together for the duration of the round.
Most speed dating events match people at random, and participants will meet different "types" that they might not normally talk to in a club. On the other hand, the random matching precludes the various cues, such as eye contact, that people use in bars to preselect each other before chatting them up.
Online speed dating [ edit ]
Several online dating services offer online speed dating where users meet online for video, audio or text chats. The advantage of online speed dating is that users can go on dates from home as it can be done from any internet enabled computer. The disadvantage is people do not actually meet one another.
Scientific research [ edit ]
There have been several studies of the round-robin dating systems themselves, as well as studies of interpersonal attraction that are relevant to these events. Other studies found speed-dating data useful as a way to observe individual choices among random participants.
First impressions [ edit ]
A 2005 study at the University of Pennsylvania of multiple HurryDate speed dating events found that most people made their choices within the first three seconds of meeting. Furthermore, issues such as religion, previous marriages, and smoking habits were found to play much less of a role than expected. [ 8 ] [ 9 ]
A 2006 study in Edinburgh, Scotland showed that 45% of the women participants in a speed-dating event and 22% of the men had come to a decision within the first 30 seconds. It also found that dialogue concerning travel resulted in more matches than dialogue about films. [ 10 ]
In a 2012 study, researchers found that activation of specific brain regions while viewing images of opposite-sex speed dating participants was predictive of whether or not a participant would later pursue or reject the viewed participants at an actual speed dating event. Men and women made decisions in a similar manner which incorporated the physical attractiveness and likability of the viewed participants in their evaluation. [ 11 ]
Subconscious preferences [ edit ]
Malcolm Gladwell 's book on split-second decision making, Blink , introduces two professors at Columbia University who run speed-dating events. Drs. Sheena Iyengar and Raymond Fisman found, from having the participants fill out questionnaires, that what people said they wanted in an ideal mate did not match their subconscious preferences. [ 12 ] [ 13 ]
Olfaction and the MHC [ edit ]
A 1995 study at the University of Bern showed that women appear to be attracted to the smell of men who have different MHC profiles from their own, and that oral contraceptives reversed this effect. [ 14 ]
The MHC is a region of the human genome involved with immune function. Because parents with more diverse MHC profiles would be expected to produce offspring with stronger immune systems. dissimilar MHC may play a role in sexual selection.
A speed "date" lasting several minutes should be long enough for the MHC hypothesis to come into play, provided the participants are seated close enough together. [ citation needed ]
Olfaction and pheromones [ edit ]
The TV newsmagazine 20/20 once sent both a male and a female set of twins to a speed dating event. One of each set was wearing pheromones. and the ones wearing pheromones received more matches. [ 15 ]
Age and height preference [ edit ]
A 2006 study by Michele Belot and Marco Francesconi into the relative effects of preference versus opportunity in mate selection showed, while concluding that opportunity was more important than preference, that a woman's age is the single most important factor determining demand by men. [ 16 ] Although less important than it is to men, age is still a highly significant factor determining demand by women.
The same study found that a man's height had a significant impact upon his desirability, with a reduction in height causing a decrease in desirability at the rate of 5% per inch.
Selectivity [ edit ]
Studies of speed dating events generally show more selectivity among women than among men. For instance, the Penn study reported that the average man was chosen by 34% of the women and the average woman was chosen by 49% of the men. [ 8 ] New studies suggest that the selectivity is based on which gender is seated and which is rotating. This new study showed that when men were seated and the women rotated, the men were more selective. [ 17 ]
Spin-offs [ edit ]
The popularity or charm of speed dating has led to at least one offspring: Speed Networking. A structured way of running business networking events with the goal of making meeting potential business contacts easier and more productive. Some speed dating companies have now started offering free speed dating where you do not pay unless you meet somebody you like.
Business speed dating has also been used in China as a way for business people to meet each other and to decide if they have similar business objectives and synergies. [ citation needed ] Speed dating offers participating investors and companies an opportunity to have focused private meetings with targeted groups in a compact time frame.
Online speed dating on SpeedDate. com™
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Singles everywhere love online speed dating
No matter where you are, there are thousands of singles waiting to meet you for live online dates on SpeedDate. com™. SpeedDate™ is a global online dating service with singles finding romance in almost every country around the world. Meet singles from your area who are hoping to try online speed dating with you.
Online speed dating for every community
No matter what type of singles you are interested in, SpeedDate™ is the online dating personals service for you. On an online dating site like SpeedDate™, you are bound to find other singles you are compatible with for love, romance, friendship, and fun. SpeedDate™ is for adults of all ages, ethnicities, religions, and sexual orientations. SpeedDate's™ members include lawyers, doctors, bankers, musicians, and many more. Not only can you find other singles who share your interests and hobbies, but you can actually have live chats about what you have in common. SpeedDate™ is the perfect place to form an instant connection.
Online speed dating: Revolutionizing online dating
We started SpeedDate™ because we were frustrated with other online dating options. On other dating personals services we would spend hours filling out extended profiles or lengthy questionnaires. We'd email with people for awhile and then would arrive at a date, and know within three minutes whether we had a connection or not. There had to be a better kind of online dating service! What made more sense to us was to design an online dating site where you could tell quickly whether you clicked or not, by going on live online dates with other singles from the comfort of home.
SpeedDate™ is easy, fun, and free to sign up
There's no dating site out there like SpeedDate. com™. Since SpeedDate™ is focused on live interaction, it's quick and easy to sign up. You can be on a live online date with another local single within a minute. Just sign up, enter your preferences, and we will automatically start introducing you to people for three minute dates. After your three minute date, you vote whether you would like to continue chatting. If you vote yes and there is a match, you keep chatting as long as you want. If not, you just move onto another person. Not only is SpeedDate™ the premier online speed dating site, it is also packed with other fun features such as flirting, winking, and sending private messages. If you are looking for a dating personals service that allows you to connect instantly with other singles, try SpeedDate™.
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Online dating is about to become a whole lot easier for you. We bring the dates to you so you can meet other singles from home, the local coffee shop, or anywhere with an internet connection. It's time for a new kind of online dating personals service. Try online speed dating today and meet someone special starting now. Sign up for SpeedDate™ now!
Radiometric dating
Radiometric dating (often called radioactive dating ) is a technique used to date materials such as rocks or carbon, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates. [ 1 ] The use of radiometric dating was first published in 1907 by Bertram Boltwood [ 2 ] and is now the principal source of information about the absolute age of rocks and other geological features, including the age of the Earth itself, and can be used to date a wide range of natural and man-made materials. Together with stratigraphic principles. radiometric dating methods are used in geochronology to establish the geological time scale. [ 3 ] Among the best-known techniques are radiocarbon dating. potassium-argon dating and uranium-lead dating. By allowing the establishment of geological timescales, it provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change. Radiometric dating is also used to date archaeological materials, including ancient artifacts.
Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.
Radioactive decay [ edit ]
Example of a radioactive decay chain from lead-212 ( 212 Pb) to lead-208 ( 208 Pb). Each parent nuclide spontaneously decays into a daughter nuclide (the decay product ) via an ? decay or a ? ? decay. The final decay product, lead-208 ( 208 Pb), is stable and can no longer undergo spontaneous radioactive decay.
All ordinary matter is made up of combinations of chemical elements. each with its own atomic number. indicating the number of protons in the atomic nucleus. Additionally, elements may exist in different isotopes. with each isotope of an element differing in the number of neutrons in the nucleus. A particular isotope of a particular element is called a nuclide. Some nuclides are inherently unstable. That is, at some point in time, an atom of such a nuclide will undergo radioactive decay and spontaneously transform into a different nuclide. This transformation may be accomplished in a number of different ways, including alpha decay (emission of alpha particles ) and beta decay (electron emission, positron emission, or electron capture ). Another possibility is spontaneous fission into two or more nuclides.
For most radioactive nuclides, the half-life depends solely on nuclear properties and is essentially a constant. It is not affected by external factors such as temperature. pressure. chemical environment, or presence of a magnetic or electric field. [ 4 ] [ 5 ] [ 6 ] The only exceptions are nuclides that decay by the process of electron capture. such as beryllium-7. strontium-85. and zirconium-89. whose decay rate may be affected by local electron density. For all other nuclides, the proportion of the original nuclide to its decay products changes in a predictable way as the original nuclide decays over time. This predictability allows the relative abundances of related nuclides to be used as a clock to measure the time from the incorporation of the original nuclides into a material to the present.
