Are you trying to calculate the age of a person with a specific date in mind? This one stumped me for the longest time, but it is possible using the following formula in a query:
Age: DateDiff("d",[date_of_birth],#9/20/2008#)/365.25
[date_of_birth] is of course the name of the field from which I have pulled the birth date of participants on a table. #9/20/2008# is the date that I am seeking to find the age of the person at that time. If you were to want to see what is was as of now, then you would replace #9/20/2008# with date()
This gets the the age field as accurate as possible. You will need to be sure to have the field allow decimals, otherwise it will round up the amount in the calculated field (for example, 39.6 would round to 40 which would make the participant really adamant about telling you that you're wrong!!)
Be sure to shrink the size of the field in your report to only show the first two digits of age, and you're done! I don't know, there may be a simpler way, but this is how I got through the problem for myself.
This is known as 'carbon dating'. You can find out how it works from Wikipedia
See the link below.
Relative age.
Radiometric dating uses the properties of atoms in materials to determine an object's age. This method relies on the principle of radioactive decay, where unstable isotopes in the material break down into stable isotopes over time at a known rate, allowing scientists to calculate the age of the object.
Reports say that she dies at age 43. Not sure though.
10-11 years of age
Comparative Age
Unless the patient has legally been ruled incompetent and has had a medical power of attorney or guardian appointed, then they cannot be refused access to their medical records based solely on their age.
Light from distant objects in the universe allows scientists to determine the age of those objects based on the time it takes for the light to reach us. The farther away an object is, the longer it takes for its light to travel to us, giving us a glimpse into the past. By measuring the redshift of the light, scientists can calculate the age of the object based on the expansion of the universe.
The age in years of a rock or other object is a representation of the time that has passed since its formation. This age can be determined through various methods such as radiometric dating or relative dating techniques.
When a living thing dies, it stops taking in carbon-14, and the carbon-14 decays into nitrogen-14 at a steady rate. By measuring how much carbon-14 remains, scientists can estimate how old a specimen is.
Radioactivity dating is based on the principle that unstable isotopes decay at a predictable rate, known as a half-life. By measuring the amount of remaining radioactive isotopes in an object, scientists can calculate how long it has been since the isotopes were formed, thereby determining the object's age. Common methods include carbon-14 dating for organic materials and uranium-lead dating for rocks and minerals.