For the uranium-lead method of dating see the link: http://en.wikipedia.org/wiki/Uranium-lead_dating
Polonium is not used for dating.
BRONZE
Alberto Giacometti Used Bronze In His Sculptures And He Used Earth Tone Paint On This Paintings
the material used was ebony,ivory,bronze,wood and gold
You may be referring to Leonardo DaVinchi's bronze horse statue. It was never completed, due to a war breaking out that lead to the the bronze that had been set aside for it being used to make cannons. However, drawings and models still exist. Two full-sized replicas were eventually built. One is at the Frederick Meijer Gardens, in Grand Rapids, Michigan.
White lead is lead carbonate. The name "white lead" is also used to describe a lead-containing white paint that was often used as a primer coat on metal. In this context, "red lead" was the red-colored lead-containing primer. White lead is a pigment composed of Lead carbonate and Lead hydroxide. It is used as a rust preventive and it used to be used in house paint until it was recognized that exposure to the old powdering paint and chips created a lead poisoning hazard to people.
Polonium is not used in photography.
Now, polonium is not used in medical treatment.
digital certificate A code used to authenticatethe source of a file or document or to identify and authenticate
Any use for polonium in agriculture.
Polonium isotopes are not used as tracers.
No use for polonium in 1900.
In 1898 polonium had any use.
Polonium is not used for the treatment of cancers. Radium is used to treat bone cancers.
Polonium was used as source of energy in thermoelectric generators.
Polonium is used in radioisotope thermoelectric energy sources.
Polonium-210 is the most common form of polonium used by humans. It is mainly used in industrial applications like anti-static devices, nuclear weapons, and nuclear batteries due to its high radioactivity. However, it is highly toxic and poses a significant health risk if not handled properly.
Of course, many scientists worked with radium and polonium.