In linguistics, the comparative method is a technique for studying the development of languages by performing a feature-by-feature comparison of two or more languages with common descent from a shared ancestor, as opposed to the method of internal reconstruction, which analyzes the internal development of a single language over time.

The programs and resources developed by the Education Department of the Los Angeles County Museum of Art are designed to extend the museum experience in the fullest possible way to the widest possible audience, both present and future. These programs provide visitors of all ages with the opportunity to expand their experience with works of art in both the museum's permanent collection an d its special exhibitions.

Plasma is one of the four fundamental states of matter (the others being solid, liquid, and gas). Heating a gas may ionize its molecules or atoms (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.

Balluta Bay is a bay on the northeast coast of Malta within St. Julian's. It is a popular recreation spot used for swimming, diving, and water sports, with a triangular pjazza surrounded by cafes and shaded by Judas trees.

Its skyline is dominated by the neo-gothic Carmelite Parish Church and the stunning art nouveau Balluta Buildings, which are apartment buildings on the eastern shore, as well as a cluster of terraced townhouses in the local variant of Georgian-style architecture. The south shore of Balluta Bay features Le Meridien St. Julian's Hotel, built on the grounds surrounding the 18th century Villa Cassar Torregiani.

The Doppler effect (or Doppler shift), named after the Austrian physicist Christian Doppler, who proposed it in 1842 in Prague, is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer. The received frequency is higher (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is lower during the recession.