"...a parcel sorting system that employs agile robot workers capable of quickly classifying and separating small items such as mail packages and clothing."
"The process is the same in every case: culling through a collection of books, pulling particular titles, and eventually grouping the books into clusters so that the titles can be read in sequenc
"...the best observational evidence yet that globular clusters sort out stars according to their mass, governed by a gravitational billiard ball game between stars."