The composition of vacuum energy, an underlying background energy that exists in space even when that space is devoid of matter, remains one of physics' great unsolved mysteries. The phenomenon results in the existence of most, if not all, of the fundamental forces, such as gravity and electromagnetism, and many experts suspect that it affects the behavior of the universe on a cosmological scale. What 1948 experiment provided the first experimental verification of the existence of vacuum energy?
Back in the day
The de facto ruler of the Manchu Qing Dynasty, Cixi ruled China for much of the period between 1861 and 1908. Following the death of Emperor Xianfeng, as well as that of his only heir, Empress Dowager Cixi violated normal succession order and named her nephew, 3-year-old Guangxu, to the throne. In 1898, after Guangxu attempted to institute political reforms against her wishes, Cixi staged a coup and effectively took political control. Who were the "Six Gentlemen"?
Born on a day like today
King is a popular American author of horror stories and one of the best-selling writers worldwide. His work bears the mark of the 19th-century Gothic tradition, often taking everyday situations and revealing their macabre and horrific potential. He is noted for his cinematic style, and several of his novels and stories have been made into successful movies, including Carrie, The Shining, and Misery. What is his relationship to the author Richard Bachman?