The Family Handyman on MSN
Scientists Use Mollusk Shell Secrets to Create Super-Strength Concrete
Yes, mollusks. Mollusks have a special composite material lining their inner shell, known as “nacre.” Nacre, also known as ...
Historical Digs on MSN
How a Prisoner Built One of WWII’s Greatest Bombers
Behind the barbed wire of Stalin’s gulag, Andrei Tupolev designed the Tu-2 — a bomber that changed Soviet aviation forever.
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