Red dwarf

A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (M_☉) to about 0.50 M_☉ and have a surface temperature of less than 4,000 K.

Red dwarfs are by far the most common type of star in the Milky Way, at least in the neighborhood of the Sun, but because of their low luminosity, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye.Proxima Centauri, the nearest star to the Sun, is a red dwarf (Type M5, apparent magnitude 11.05), as are twenty of the next thirty nearest stars. According to some estimates, red dwarfs make up three-quarters of the stars in the Milky Way.

Stellar models indicate that red dwarfs less than 0.35 M_☉ are fully convective. Hence the helium produced by the thermonuclear fusion of hydrogen is constantly remixed throughout the star, avoiding a buildup at the core. Red dwarfs therefore develop very slowly, having a constant luminosity and spectral type for, in theory, some trillions of years, until their fuel is depleted. Because of the comparatively short age of the universe, no red dwarfs of advanced evolutionary stages exist.

Dwarf star

The term dwarf star refers to a variety of distinct classes of stars. The term was originally coined in 1906 when the Danish astronomer Ejnar Hertzsprung noticed that the reddest stars—classified as K and M in the Harvard scheme—could be divided into two distinct groups. They are either much brighter than the Sun, or much fainter. To distinguish these groups, he called them "giant" and "dwarf" stars, the dwarf stars being fainter and the giants being brighter than the sun. The scope of the term "dwarf" was later expanded to include the following:

Red Dwarf

Red Dwarf is a British comedy which primarily comprises ten series (the ninth being a mini-series) of a television science fiction sitcom that aired on BBC Two between 1988 and 1993 and from 1997 to 1999, and on Dave in 2009 and 2012, gaining a cult following. In May 2015, it was announced that Series XI and XII will film back-to-back later in 2015 and will air exclusively on the Dave channel in 2016 and 2017.

The series was created by Rob Grant and Doug Naylor. In addition to the television episodes, there are four novels, two pilot episodes for an American version of the show, a radio version produced for BBC Radio 7, tie-in books, magazines and other merchandise.

Despite the pastiche of science fiction used as a backdrop, Red Dwarf is primarily a character-driven comedy, with off-the-wall science fiction elements used as complementary plot devices. In the early episodes, a recurring source of comedy was the Odd Couple-style relationship between the two central characters of the show, who have an intense dislike for each other and are trapped together deep in space. The main characters are Dave Lister, the last known human alive, and Arnold Rimmer, a hologram of Lister's dead bunkmate. The other regular characters are Cat, a lifeform which evolved from the descendants of Lister's pregnant pet cat Frankenstein; Holly, Red Dwarf's computer; Kryten, a service mechanoid; and, as of Series VII to Back to Earth, Kristine Kochanski, an alternative-reality version of Lister's long-lost love.

Crash Course

Crash Course (also known as Driving Academy) is a 1988 made for television teen film directed by Oz Scott.

Plot

Crash Course centers on a group of high schoolers in a driver’s education class; many for the second or third time. The recently divorced teacher, super-passive Larry Pearl, is on thin ice with the football fanatic principal, Principal Paulson, who is being pressured by the district superintendent to raise driver’s education completion rates or lose his coveted football program. With this in mind, Principal Paulson and his assistant, with a secret desire for his job, Abner Frasier, hire an outside driver’s education instructor with a very tough reputation, Edna Savage, aka E.W. Savage, who quickly takes control of the class.

The plot focuses mostly on the students and their interactions with their teachers and each other. In the beginning, Rico is the loner with just a few friends, Chadley is the bookish nerd with few friends who longs to be cool and also longs to be a part of Vanessa’s life who is the young, friendly and attractive girl who had to fake her mother’s signature on her driver’s education permission slip. Kichi is the hip-hop Asian kid who often raps what he has to say and constantly flirts with Maria, the rich foreign girl who thinks that the right-of-way on the roadways always goes to (insert awesomely fake foreign Latino accent) “my father’s limo”. Finally you have stereotypical football meathead J.J., who needs to pass his English exam to keep his eligibility and constantly asks out and gets rejected by Alice, the tomboy whose father owns “Santini & Son” Concrete Company. Alice is portrayed as being the “son” her father wanted.