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Bob - Seattle, WA
Mingle2 is amazing! It's totally free and mutual match facility is clever and brilliant. I have made loads of penpals and found romance
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5 minutes after signing up for Mingle2, I had a date! I've never been on a site like this before. Simply incredible
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I love this site. IT REALLY WORKS!
I'm now in a wonderful relationship, thank you Mingle2! The site is so easy to use and there are tons of people who want to chat.
Quite Simply: It really works. So why wait?
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.
Online dating service
From Wikipedia, the free encyclopedia
Online dating ( OD ) or Internet dating is a personal introductory system whereby individuals can find and contact each other over the Internet to arrange a date. usually with the objective of developing a personal, romantic, or sexual relationship. Online dating services usually provide unmoderated matchmaking over the Internet. through the use of personal computers or cell phones. Users of an online dating service would usually provide personal information, to enable them to search the service provider's database for other individuals. Members use criteria other members set, such as age range, gender and location.
Online dating sites use market metaphors to match people. Match Metaphors are conceptual frameworks that allow individuals to make sense of new concepts by drawing upon familiar experiences and frame-works. This metaphor of the marketplace – a place where people go to “shop” for potential romantic partners and to “sell” themselves in hopes of creating a successful romantic relationship – is highlighted by the layout and functionality of online dating websites. The marketplace metaphor may also resonate with participants’ conceptual orientation towards the process of? nding a romantic partner. [ 1 ] Most sites allow members to upload photos or videos of themselves and browse the photos and videos of others. Sites may offer additional services, such as webcasts. online chat. telephone chat (VOIP ), and message boards. Some sites provide free registration, but may offer services which require a monthly fee. Other sites depend on advertising for their revenue. Some sites such as OKCupid, Plenty of Fish and Badoo are free and offer additional paid services in a freemium revenue model. [ 2 ]
Some sites are broad-based, with members coming from a variety of backgrounds looking for different types of relationships. Other sites are more specific, based on the type of members, interests, location, or relationship desired. A 2005 study of data collected by the Pew Internet & American Life Project found that individuals are more likely to use an online dating service if they use the internet for a greater amount of tasks and less likely to use such a service if they are trusting of others. [ 3 ]
We respect your privacy and provide a clean and safe environment, so sign-up today and start contacting people right away!
Why Choose NZDating?
Top 5 reasons why NZDating's better:
It actually is free
Unlike other sites claiming to be free while not allowing free members to communicate, NZDating's mail system, messageboards, photos, etc. are all available to free members
It's bigger
NZDating has by far the largest number of New Zealand users of any dating sites - the more members, the more choice, the more likely you'll have a great time meeting new people just like you.
It's more fun
Some dating sites claim to be the place to find someone to marry. At NZDating we say the best relationships come from having fun making lots of friends - meanwhile 'the one' often magically appears!
It's tailored to you
NZDating believes people's individuality is special, so rather than forcing the same strict set of rules on everyone - we believe you should be able to make your own choices about what you like seeing (or not seeing).
It's Kiwi Owned and Operated
NZDating is a local family business that genuinely cares about its community - not some multi-national media company more focused on its shareholders.
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Dating With Kids: 5 Ground Rules For Introducing Your New Partner To Your Kids
This article first appeared on GalTime. com
You thought dating was hard the first time? Here you are, single again, but this time with children. You finally meet someone you really, really like and want to introduce him to your kids. How do you go about it? What if your youngsters don’t like him? What if he doesn’t like them? What if it doesn’t work out?
Before you even think about introducing your children to your new boyfriend, you need to have been dating for at least six months. No, I’m not crazy. Didn’t your last relationship end in divorce? You don’t want that to happen again and you certainly don’t want your children to go through that again. It takes at least six months to begin to really know a person. You don’t want to introduce someone and one month later have to explain to your children why they don’t see "Mike" anymore.
I would also advise that you let your ex-husband know you are introducing someone to your children. It's the respectful thing to do if you have a good relationship with him. Take your time. It’s not a race to the altar again. It’s not just your life; it’s your kid’s lives too. Here are a few ground rules for introducing a new love to your children.
1. No Expectations . This is a casual event. You can’t force anyone to like anyone. Telling your children they have to be nice or like someone is a sure fire way to ruin the meeting. Let everyone meet and form their own opinions.
2. Group Setting . Have the first five meetings in a group setting. For instance, a backyard BBQ with friends and your new man. You should introduce him as a friend and give your children the chance to get to know your guy in a fun, relaxed, no pressure atmosphere. A group setting allows children to feel non-threatened. It's best not to show affection during these first five meetings. He’s just a friend right now.
3. Go Slowly . Remember, you might be in love, but your children need time to get used to a new situation. Follow their cues. If you sense they are having issues, talk to them. Slow down if you have to. Trust me, going slow now will ensure you have success later.
4. One Mom, One Dad . Reassure your children that they only have one mom and one dad. No one will replace either of you. I told my children this a few months after I introduced my then boyfriend to them. My son actually liked my boyfriend so much he wanted to call him dad. I had to take him aside and say, “I am so glad you like him! But you only have one mom and one dad.” He was only five years old, so I kept it age appropriate.
5. Rules for the New Family . As you begin to settle in together as a new group, it’s important for you to discuss how it plays out with your new partner. Have a long talk about expectations, discipline, money, education and anything else you might deal with. It’s a big deal merging families. You want your children to be happy in this new environment.
Dating after divorce can be tricky, but if you take your time and navigate the right way, it can be a win-win for everyone. Here’s my story.
I dated my boyfriend (now my husband) for six months before I introduced him to my children. I had to be sure he would be in my life in for a long time. I decided to slowly introduce him as a friend. I had a pool party with about four adult guests, him being one of them. I just introduced him as a friend. We did about five more group outings before he came to do things with just me and my two children. We slowly began doing fun kids things with just the four of us. We waited another four months before we showed any affection (hand holding, kissing) in front of them. After that, we slowly started holding hands and told the kids he was my boyfriend. Three years and six months later -- we are one super happy family and all because we took it slowly. I love my children too much to rush into anything with anyone.
Make sure you are in love and take your time; if he’s a great guy and you move slowly, your children will see how great he is too!
Do you have a different story? What worked or didn't work for you?
