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The conga, also known as tumbadora, is a tall, narrow, single-headed drum from Cuba. Congas are staved like barrels and classified into three types: quinto (lead drum, highest), tres dos or tres golpes (middle), and tumba or salidor (lowest). Congas are traditionally used in Afro-Cuban genres such as conga and rumba, although they are now very common in some other forms of Latin music, including descarga, Afro-Cuban jazz, salsa, songo,merengue and Latin rock.

Gamma ray (also called gamma radiation), denoted by the lower-case Greek letter gamma (γ or γ {\displaystyle \gamma } ), is extremely high-frequency electromagnetic radiation and therefore consists of high-energy photons. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation gamma rays. Rutherford had previously discovered two other types of radioactive decay, which he named alpha and beta rays

 Gender neutrality
Gender neutrality (adjective form: gender-neutral), also known as gender-neutralism or the gender neutrality movement, describes the idea that policies, language, and other social institutions should avoid distinguishing roles according to people’s sex or gender, in order to avoid discrimination arising from the impression that there are social roles for which one gender is more suited than another.

Philosophy (from Greek φιλοσοφία, philosophia, literally “love of wisdom”[1][2][3][4]) is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language.[5][6] The term was probably coined by Pythagoras (570 – 495 BC). Philosophical methods include questioning, critical discussion, rational argument and systematic presentation.[7][8] Classic philosophical questions include: Is it possible to know anything and to prove it?[9][10][11] What is most real? However, philosophers might also pose more practical and concrete questions such as: Is there a best way to live? Is it better to be just or unjust (if you can get away with it)?[12] Do humans have free will ?[13]

Extraterrestrial life

Extraterrestrial life[n 1] is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an “extraterrestrial” or “alien” (or, to avoid confusion with the legal sense of “alien”, a “space alien“). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, there is no unambiguous evidence for its existence so far.[1][2] The science of extraterrestrial life is known as exobiology.

The science of astrobiology considers life on Earth as well, and in the broader astronomical context. In 2015, “remains of biotic life” were found in 4.1 billion-year-old rocks in Western Australia, when the young Earth was about 400 million years old.[3][4] According to one of the researchers, “If life arose relatively quickly on Earth, then it could be common in the universe.”[3]

Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets.[5] It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood’s involvement, has increased the public’s interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.[6][7]

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