
In 2005, Nokia sold its billionth mobile phone, a budget-friendly device that went to a customer in Nigeria. By then, the company, based in Espoo, Finland, was making one of every three cellphones globally.But just nine years later, the mobile-device …

During times of political turmoil, history often gets rewritten, erased, or lost. That is what happened to the legacy of Jan Czochralski, a Polish chemist whose contributions to semiconductor manufacturing were expunged after World War II.In 1916 he i…