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MOID – (astrophysics terminology) minimum orbit intersection distance, the minimum distance between two objects' orbital paths; MOLA – (instrumentation) Mars Observer Laser Altimeter, an instrument on the Mars Observer used to study Mars's topology; MOND – (astrophysics terminology) modified Newtonian dynamics
Distance education, also known as distance learning, is the education of students who may not always be physically present at school, [1] [2] or where the learner and the teacher are separated in both time and distance. [3] Traditionally, this usually involved correspondence courses wherein the student corresponded with the school via mail.
Distributed learning may be dependent on time if it includes synchronous sessions, and further time dependent if the course is paced. The oldest and most commonly used of these terms, distance education, can be used to describe distributed learning as defined above. "Distributed education" lacks a correspondence school tone and history and thus ...
A measure of a star 's absolute brightness. It is defined as the apparent magnitude the star would show if it were located at a distance of 10 parsecs, or 32.6 light-years. accretion disk A roughly circular mass of diffuse material in orbit around a central object, such as a star or black hole. The material is acquired from a source external to ...
Brightness is the polar opposite of darkness. Brightness may also refer to: Scientific. Luminosity; Brightness (sound) ... additional terms may apply.
As defined by the US Federal Glossary of Telecommunication Terms , "brightness" should now be used only for non-quantitative references to physiological sensations and perceptions of light. [3] Brightness is an antonym of "dimness" or "dullness". With regard to stars, brightness is quantified as apparent magnitude and absolute magnitude.
A variety of names began to be used to denote education conducted using various technologies; these include online learning and e-learning. As an example of how confusing this had become Singh and Thurman (2019) [1] identified 46 definitions for online learning. The name 'digital learning' has gained popularity as a way to encompasses the ...
Virtual education is most commonly used in high school and college. 30-year-old students or older tend to study online programs at higher rates. [4] This group represents 41% of the online education population, while 35.5% of students ages 24–29 and 24.5% of students ages 15–23 participate in virtual education.