grinding tool वाक्य

According to an October 18, 2010 issue of " Nature Online " Laura Longo, an archeologist at University of Siena in Italy found evidence of " Brachypodium " and cattail ( " Typha " spp . ) residues on prehistoric human grinding tools dated 28, 000 years ago from Bilanco in central Italy.
Jeffers, who was a car mechanic on the side, admitted that he had caused the fire when a spark from a grinding tool he was using to illegally transfer a vehicle identification number from one car to another ignited a pool of gasoline on the floor of the garage, which some officials described as a chop shop for dismantling stolen cars.
When the scientists wanted a deeper look into the rock, they changed the orientation of the grinding tool and renamed the site Brooklyn . " Somebody said it was the same target as New York but with an attitude adjustment, " Bartlett said . ( This being a scientific joke, it required a footnote : " attitude, "'Bartlett said, " can mean angle or spacecraft pointing ."