Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Is the whole universe just a simulation?

Every year, Apple holds three or four events to unveil new products. There's often a spring event around March or April, the Worldwide Developers Conference in June, a September event focused on the ...

Many of these small nature preserves don't get a lot of visitors and can offer peaceful, gentle walks. Skeptics say Fort Lauderdale restaurants handing meals to food delivery robots is risky. Others ...

Over two days, teams of six students simulate two European Council meetings and a series of meetings at all levels of the Council of the EU on current affairs topics. For example, in 2025 the topics ...

Robert Stammer, CFA, is the former director of investor engagement at CFA Institute and writes on thought leadership in the investment management industry. Charlene Rhinehart is a CPA , CFE, chair of ...

Variational quantum algorithms (VQAs) face scalability challenges, notably barren plateaus, where the loss landscape flattens with increasing system size. Here, the authors explore an analog VQA ...

When one person observes another making a sandwich or changing a flat tire, knowledge about the parts of the activity can allow the observer to fill in missing information, predict what will happen ...

Feb. 21, 2026 Deep inside a Romanian ice cave, locked away in a 5,000-year-old layer of ice, scientists have uncovered a bacterium with a startling secret: it’s resistant to many modern antibiotics.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...