loop drift
51Direct-conversion receiver — A direct conversion receiver (DCR), also known as homodyne, synchrodyne, or zero IF receiver, is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is… …
52AZUSA — refers to a ground based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA dated back to the early 1950s and was named after the southern California town (Azusa, California) where the system was… …
53Non-rocket spacelaunch — Non rocket space launch (NRS) is a launch into space where some or all needed speed and altitude is provided by non rocket means, rather than simply using conventional chemical rockets from the ground. A number of alternatives to rockets have… …
54Liste de jeux d'arcade — Cette liste, encore incomplète, regroupe tous les jeux d arcade dans un classement par ordre alphabétique. Sommaire : Haut A B C D E F G H I J K L M N O P Q R S T U V W X Y Z …
55GENETIC ANCESTRY, JEWISH — Background The human genome refers to approximately three billion chemical letters (nucleotides) comprising the sequence of deoxyribonucleic acid (DNA) in almost every cell of each human being. There are four different nucleotides (adenine,… …
56Sonic the Hedgehog (series) — For other uses, see Sonic the Hedgehog. Sonic the Hedgehog Developers Sega Publishers …
57Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… …
58Criticism of relativity theory — Criticism of Albert Einstein s theory of relativity was mainly expressed in the early years after its publication on a scientific, pseudoscientific, philosophical, or ideological basis. Reasons for criticism were, for example, alternative… …
59Corona — This article is about the astronomical term. For other uses, see Corona (disambiguation). During a total solar eclipse, the solar corona can be seen with the naked eye. A corona is a type of plasma atmosphere of the Sun or other celestial body,… …
60MicroRNA — The stem loop secondary structure of a pre microRNA from Brassica oleracea. A microRNA (abbreviated miRNA) is a short ribonucleic acid (RNA) molecule found in eukaryotic cells. A microRNA molecule has very few nucleotides (an average of 22)… …
