These metal-mesh filters are free-standing 5-μm thick sheets of copper perforated with a periodic array of diamond-shaped apertures. The simple aperture design minimizes the effect of fabrication ...

What better piece of jewelry to buy for Valentine’s Day than one whose shape is a shorthand for commitment ... featuring a 1.03-carat diamond in a six-prong setting suspended from a classic ...

Gift Article 10 Remaining As a subscriber, you have 10 articles to gift each month. Gifting allows recipients to access the article for free. The owners of the Chicago Bulls and Blackhawks have ...