What are convex and concave mirrors?
Space and AstronomySpherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are called convex mirrors. What is a convex mirror? A convex mirror, or simply put a curved mirror, is a mirror in which the reflective surface bulges toward the light source. The surface of a curved mirror
What is the sign chart method?
Space and AstronomyThe sign chart for such a rational function is a depiction of the number line separated into intervals by branch points. Plus and minus signs are distributed across the number line depending on the sign of the function at points of the interval. How do you solve a sign chart? Video quote: Positive. Now one
What can I do with potted calla lilies?
Space and AstronomyIn cooler climates, potted calla lilies can simply be deadheaded, treated for insects, and then taken indoors for winter and grown as houseplants. Like other summer bulbs, calla lily rhizomes can also be dug up and stored in dry peat moss in a dry, dark location that does not get any cooler than 45 degrees
What is Aldebaran made of?
Space and AstronomyHuggins was able to identify nine elements in Aldebaran’s spectral lines, including iron, sodium, calcium and magnesium. What kind of star is Aldebaran? red giant star Aldebaran, to scale against the Sun. Aldebaran, the brightest star in the constellation Taurus, is an excellent example of a red giant star. How was Aldebaran formed? Formation. The
How do you do sets in math?
Space and AstronomyThe most common form used to represent sets is the roster notation in which the elements of the sets are enclosed in curly brackets separated by commas. For example, Set B = {2,4,6,8,10}, which is the collection of the first five even numbers. How do you solve a set in math? What Is the Formula
What does angle of depression mean?
Space and AstronomyDefinition of angle of depression : the angle formed by the line of sight and the horizontal plane for an object below the horizontal. How do you do angle of depression? The angle of depression is formed when an observer looks down at an object. It is the angle formed between the horizontal line which
Can astronauts play sports in space?
Space and AstronomyOn board the International Space Station, Russian cosmonauts and astronauts from NASA and the Japanese space agency played what is being considered the first sporting event in space. It was a doubles game of badminton and it sure looks like a lot of fun. What sports can you do in space? NASA Baseball. Baseball: America’s
How did Thomas Eakins die?
Space and AstronomyWhy did Thomas Eakins ultimately leave the Philadelphia Academy of Art? The suspicious were unable to accept Eakins’s assurance that the relationship between artist and model was as innocent, objective, and professional as that between doctor and patient. Eakins continued to insist on the importance of teaching from nude human models and was finally forced
What is the Hab in the Martian?
Space and AstronomyThe Hab, short for “The Mars Lander Habitat”, are a series of artificial living quarters that were constructed shortly after the Ares III manned mission to Mars landed. It is designed to house six astronauts for 31 Martian Days (Sols). What does sol 19 mean in The Martian? One solar day on Mars, called a
What happens in the sun’s corona?
Space and AstronomyThe corona extends far out into space. From it comes the solar wind that travels through our solar system. The corona’s temperature causes its particles to move at very high speeds. These speeds are so high that the particles can escape the Sun’s gravity. What does the Sun’s corona do? The corona is the outer