Discover how the Luhn Algorithm verifies credit card accuracy, supports secure transactions, and helps prevent errors in inputting Social Security numbers.

Sarasota Square Mall is being redeveloped into a mixed-use lifestyle center by Torburn Partners. New tenants will include Whole Foods Market, HomeSense, Chipotle, CAVA, and Joe & The Juice. The ...

An apparently homeless man was stabbed twice in the middle of Times Square Saturday — yelling “save the children” while bleeding profusely after the attack, cops and witnesses said. The 30-year-old ...

Years ago, no math education was complete without understanding how to compute a square root. Today, you are probably just reaching for a calculator, or if you are writing a program, you’ll probably ...

Named for Moses Cleaveland, the small settlement grew quickly. By the time of the Civil War, Cleveland had become a growing industrial force. And when President Abraham Lincoln was assassinated in ...

Square Enix president Takashi Kiryu in an all-hands meeting with employees outside of Japan today announced it will be laying off staff in its Western business. An internal presentation that available ...

After years of speculation, there is finally some clarity about the uncertain future of Macy’s Union Square. On Tuesday, the retail giant announced a partnership with TMG Partners, a large Bay Area ...

A new skyscraper has been approved in Cleveland’s University Circle neighborhood, with groundbreaking possibly beginning as early as spring 2026. East Stokes Block, a 24-story mixed-use building, on ...

The original version of this story appeared in Quanta Magazine. If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle ...

If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle the easiest pieces first. But this kind of sorting has a cost.

The modern internet is ruled by algorithms. When you boot up Instagram, for example, what you see in your feed is strategically sorted by the app's AI based on your past activity to keep you engaged ...

LinkedIn's algorithm prioritizes ads & sponsored content, hurting organic reach for creators. To adapt: share niche expertise, use authentic images, craft strong hooks, write longer comments, engage ...