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iOS (formerly iPhone OS) is a mobile operating system developed by Apple exclusively for its smartphones. It was unveiled in January 2007 for the first-generation...

The Boeing 787 Dreamliner is an American wide-body airliner developed and manufactured by Boeing Commercial Airplanes. After dropping its unconventional...

Delta Air Lines is a major airline in the United States headquartered in Atlanta, Georgia. It is the United States' oldest operating airline and the seventh-oldest...

Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes...

3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime...

PubMed Central (PMC) is a free digital repository that archives open access full-text scholarly articles that have been published in biomedical and life...

Qualcomm Incorporated (/ˈkwɒlkɒm/) is an American multinational corporation headquartered in San Diego, California, and incorporated in Delaware. It creates...

Asbestos (/æsˈbɛstəs, æz-, -tɒs/ ass-BES-təs, az-, -⁠toss) is a naturally occurring fibrous silicate mineral. There are six types, all of which are composed...

The Planck constant, or Planck's constant, denoted by h {\textstyle h} , is a fundamental physical constant of foundational importance in quantum mechanics:...

Cetacea (/sɪˈteɪʃə/; from Latin cetus 'whale', from Ancient Greek κῆτος (kêtos) 'huge fish, sea monster') is an infraorder of aquatic mammals belonging...

The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged...

A rhinoceros (/raɪˈnɒsərəs/; from Ancient Greek ῥινόκερως (rhinókerōs) 'nose-horned'; from ῥίς (rhis) 'nose' and κέρας (kéras) 'horn'; pl.: rhinoceros...

The Boeing 707 is an early American long-range narrow-body airliner, the first jetliner developed and produced by Boeing Commercial Airplanes. Developed...

Tristan da Cunha (/ˌtrɪstən də ˈkuːn(j)ə/), colloquially Tristan, is a remote group of volcanic islands in the South Atlantic Ocean. It is the most remote...

Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation...

A pine is any conifer tree or shrub in the genus Pinus (/ˈpaɪnəs/) of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae. World Flora...

Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage abnormal heart rhythms (arrhythmia), and to protect...

A computer keyboard is a peripheral input device modeled after the typewriter keyboard which uses an arrangement of buttons or keys to act as mechanical...

The Northrop F-5 is a family of supersonic light fighter aircraft initially designed as a privately funded project in the late 1950s by Northrop Corporation...

Peafowl is a common name for two bird species of the genus Pavo and one species of the closely related genus Afropavo within the tribe Pavonini of the...