report comes after Pyongyang threatened to take the toughest counteraction against a United Nations Security Council meeting held on North Korean human rights last week.

the researchers found a rare compound.It tells us also that those recipes were passed on for centuries.

who was not involved in the study.published Wednesday in the Journal of the American Chemical Society.Leonardo is thought to have dissolved lead oxide powder.

no larger than the diameter of a human hair.confirmed for the first time what art historians had previously only hypothesized: that Leonardo most likely used lead oxide powder to thicken and help dry his paint as he began working on the portrait that now stares out from behind protective glass in the Louvre Museum in Paris.

called the research very exciting and said any scientifically proven new insights into Leonardos painting techniques are extremely important news for the art world and our larger global society.

Using X-rays to peer into the chemical structure of a tiny speck of the celebrated work of art.bringing her to a tie with DeSantis in the latest Des Moines Register/NBC polling.

A month before the report was released.I wasnt surprised she said it because I think thats who she is.

mocked Haley over the proposal for social media platforms.which was published after the first two debates.