Lechatelierite is a type of naturally occurring, amorphous silica glass formed by a high-energy event such as a lightning strike or meteor impact. Its named after French chemist Henry Le Chatelier. It is a rare mineral because of the specific conditions needed for its formation.

Italian pope from 1963 to 1978 who eased restrictions on fasting and on interfaith marriages (1897-1978)

Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponents court. The object of the game is to manoeuvre the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball validly will not gain a point, while the opposite player will.Tennis is an Olympic sport and is played at all levels of society and at all ages. The sport can be played by anyone who can hold a racket, including wheelchair users. The original forms of tennis developed in France during the late Middle Ages. The modern form of tennis originated in Birmingham, England, in the late 19th century as lawn tennis. It had close connections both to various field (lawn) games such as croquet and bowls as well as to the older racket sport today called real tennis.The rules of modern tennis have changed little since the 1890s. Two exceptions are that until 1961 the server had to keep one foot on the ground at all times, and the adoption of the tiebreak in the 1970s. A recent addition to professional tennis has been the adoption of electronic review technology coupled with a point-challenge system, which allows a player to contest the line call of a point, a system known as Hawk-Eye.Tennis is played by millions of recreational players and is a popular worldwide spectator sport. The four Grand Slam tournaments (also referred to as the majors) are especially popular: the Australian Open, played on hardcourts; the French Open, played on red clay courts; Wimbledon, played on grass courts; and the US Open, also played on hardcourts.

A professional person refers to someone who is engaged in a specified activity as their main occupation rather than an amateur, typically requiring advanced education, expert knowledge, skill, and proficiency in a particular field or industry. This may include professions such as medicine, law, engineering, finance, academia, and many others. They usually adhere to certain ethical standards and regulations set by professional bodies.

Of, pertaining to, or located in the Mediterranean Sea or on the adjacent lands; as, Mediterranean trade; a Mediterranean voyage; a Mediterranean plant.

a wrestling hold in which the holder puts an arm under the opponents arm and exerts pressure on the back of the neck

a time immediately before the present

containing bones (especially fossil bones)

The Antarctic ( or , American English also or ; commonly ) is a polar region around Earths South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau and other island territories located on the Antarctic Plate or south of the Antarctic Convergence. The Antarctic region includes the ice shelves, waters, and all the island territories in the Southern Ocean situated south of the Antarctic Convergence, a zone approximately 32 to 48 km (20 to 30 mi) wide varying in latitude seasonally. The region covers some 20 percent of the Southern Hemisphere, of which 5.5 percent (14 million km2) is the surface area of the Antarctica continent itself. All of the land and ice shelves south of 60°S latitude are administered under the Antarctic Treaty System. Biogeographically, the Antarctic realm is one of eight biogeographic realms of Earths land surface.

Culichi is a term used to describe the culture, cuisine, and people associated with the city of Culiacán, Sinaloa, in Mexico. It often refers to the distinctive style of music, food, and fashion that originated and is popularized in Culiacán.

Compounded of the revolution of sun and moon.

firm but easily broken

a solemn pledge of fidelity

long and thin; resembling a ribbon

That which is hidden in a cache; a hoard; a stockpile.

the process of making enriched uranium

The ornamentation of fabric using needlework.

(originally science) The study of methods used in a field.

To fall like a waterfall.

To agitate rapidly and repetitively, or to stir with a rowing or rocking motion; generally applies to liquids, notably cream.