One means of determining the age of a painting is to examine it under black light.
Many of these photographs were taken with color filters, which can help in determining the age of a surface feature.
Determining the age for any samples more than 40,000 years old was no sure thing.
The Dominican Republic seems to have more trouble determining the age of its baseball players than scientists do carbon-dating prehistoric insects.
By Andrea Thompson August 12, 2008 Spanish scientists have unveiled a new "electronic tongue" capable, they claim, of quickly and accurately determining the age and variety of wine.
Mr. Kant said that the onus of determining the age of an employee is on the employers.
Spanish scientists have unveiled a new "electronic tongue" capable, they claim, of quickly and accurately determining the age and variety of wine.
He developed a method of determining the age and order of late glacial and postglacial deposits from the types of diatom fossils in the deposits.
Rhenium osmium dating, method of determining the age of the important ore mineral molybdenite; the method is based upon the radioactive decay of rhenium-187 to osmium-187.
The work of the "questioned document" examiner concerns such problems as identifying handwriting and typewriting, determining the age of a document, and determining the sequence of events involved in a document's preparation, handling, or alteration.
Radioisotopes serve as time clocks, thus offering a means of determining the age of water masses, the absolute rates of oceanic mixing, and the generation and destruction of plant tissue.
