Geologists often need to know the age of material that they find. They use absolute dating methods, sometimes called numerical dating, to give rocks an actual date, or date range, in number of years. This is different to relative dating, which only puts geological events in time order. Most absolute dates for rocks are obtained with radiometric methods.

'Men should date women half their age plus seven': The strange dating rule that dates back to 1901



File:sria.info - Wikimedia Commons
Posted by: Brad. I found an interesting article that proposes a math equation for suggesting the age of people you should be willing to date. I really thought it worked well at the lower age ranges but in the 40s things started to get a little excessive first for the upper limit and then later for the lower limit as well. For example, my dad happens to be 57 years old. The equation given would suggest that his optimal dating range would be between With that in mind, I decided to try my hand at an equation by adding a hard cap to to both the upper and lower limit.


Appropriate dating age
You can use it to test whether your current relationship is socially acceptable or to calculate what age is too young or too old for you to date. It might take a few seconds to load. So according to this, I could date a guy between the ages of 21 and



Bloggers and busybodies are divided over whether or not the age difference between actress Jennifer Lawrence, 24, and musician Chris Martin, 37, automatically renders their relationship inappropriate. The rule is widely cited, but its origins are hard to pin down. The rule also appears in The Autobiography of Malcolm X. When Malcolm X met his future wife Betty Sanders, he interpreted the fact that their ages fit the rule of seven as a sign that they were destined for each other.