
The angel problem is a question in combinatorial game theory proposed by John Horton Conway. The game is commonly referred to as the Angels and Devils game. The game is played by two players called the angel and the devil. It is played on an infinite chessboard. The angel has a power k, specified before the game starts. The board starts empty with the angel in one square. On each turn, the angel jumps to a different empty square which could be reached by at most k moves of a chess king, i.e. the distance from the starting square is at most k in the infinity norm. The devil, on its turn, may add a block on any single square not containing the angel. The angel may leap over blocked squares, but cannot land on them. The devil wins if the angel is unable to move. The angel wins by surviving indefinitely.

"Ate my balls" is one of the earliest examples of an internet meme. It was widely shared in the late 1990s when adherents created web pages to depict a particular celebrity, fictional character, or other subject's zeal for eating testicles. Often, the site would consist of a humorous fictitious story or comic featuring edited photos about the titular individual; the photo editing was often crude and featured the character next to comic-book style speech in a thought balloon.

Black-eyed children are an American contemporary legend of paranormal creatures that resemble children between ages 6 and 16, with pale skin and black eyes, who are reportedly seen hitchhiking or begging, or are encountered on doorsteps of residential homes.
Excise stamps of Ukraine are a kind of Ukrainian revenue stamps to collect excise tax. They are used in accordance with the Ukraine's presidential decree of 18 September 1995, "On approval of the excise duty on alcoholic beverages and tobacco products".

Gene therapy is a medical field which focuses on the genetic modification of cells to produce a therapeutic effect or the treatment of disease by repairing or reconstructing defective genetic material. The first attempt at modifying human DNA was performed in 1980 by Martin Cline, but the first successful nuclear gene transfer in humans, approved by the National Institutes of Health, was performed in May 1989. The first therapeutic use of gene transfer as well as the first direct insertion of human DNA into the nuclear genome was performed by French Anderson in a trial starting in September 1990. It is thought to be able to cure many genetic disorders or treat them over time.

Alex George's taxonomic arrangement of Dryandra was the first modern-day arrangement of that taxon. First published in Nuytsia in 1996, it superseded the arrangement of George Bentham, which had stood for over a hundred years; it would later form the basis for George's 1999 treatment of Dryandra for the Flora of Australia. In accordance with contemporary thinking, George treated Dryandra as a genus, dividing it into three subgenera, the largest of which was divided into 24 series. The arrangement stood until 2007, when Dryandra was transferred into Banksia as B. ser. Dryandra. No alternative has yet been proposed.
The J-series is Honda's fourth production V6 engine family introduced in 1996, after the C-series, which consisted of three dissimilar versions. The J-series engine was designed in the United States by Honda engineers. It is built at Honda's Anna, Ohio, and Lincoln, Alabama, engine plants.

Mega Millions is an American multi-jurisdictional lottery game; as of January 30, 2020, it is offered in 45 states, the District of Columbia, and the U.S. Virgin Islands. The first (The Big Game) Mega Millions drawing was in 2002; see below. What is now Mega Millions initially was offered in six states; the logo for all versions of the game following the retirement of The Big Game name featured a gold-colored ball with six stars to represent the game's initial membership, although some lotteries insert their respective logo in the ball.

The Paleolithic continuity paradigm, is a hypothesis suggesting that the Proto-Indo-European language (PIE) can be traced back to the Upper Paleolithic, several millennia earlier than the Chalcolithic or at the most Neolithic estimates in other scenarios of Proto-Indo-European origins.

A paywall is a method of restricting access to content, with a purchase or a paid subscription, especially news. Beginning in the mid-2010s, newspapers started implementing paywalls on their websites as a way to increase revenue after years of decline in paid print readership and advertising revenue, partly due to the use of ad blockers. In academics, research papers are often subject to a paywall and are available via academic libraries that subscribe.

Rosa 'A Shropshire Lad' is a peach blend shrub rose, bred by British rose breeder, David C. H. Austin before 1991. It was introduced into the United Kingdom by David Austin Roses Limited (UK) in 1996. The rose was named in honor of the collection of poems, 'A Shropshire Lad' by A.E. Housman on the 100th anniversary of its publication.

The Scunthorpe problem is the unintentional blocking of websites, e-mails, forum posts or search results by a spam filter or search engine because their text contains a string of letters that appear to have an obscene or otherwise unacceptable meaning. Names, abbreviations, and technical terms are most often cited as being affected by the issue.

sRGB is a standard RGB color space that HP and Microsoft created cooperatively in 1996 to use on monitors, printers, and the Web. It was subsequently standardized by the International Electrotechnical Commission (IEC) as IEC 61966-2-1:1999. sRGB is the current defined standard colorspace for the web, and it is usually the assumed colorspace for images that are neither tagged for a colorspace nor have an embedded color profile.