Online daters are most likely to contact people with the same level of education as them, but are less fussy about an intellectual match as they get older, according to new research.
Scientists have produced the most tightly knotted physical structure ever known -- an achievement which has the potential to create a new generation of advanced materials.
Stanford physicist Peter Graham recently received a Breakthrough New Horizons in Physics Prize for his new direction for looking for the most basic laws of nature.