What does a supplementary angle look like?
Space & NavigationSupplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like ∠1 and ∠2 in the figure below, are always supplementary. But, two angles need not be adjacent to be supplementary. In the next figure, ∠3 and ∠4 are supplementary, because their measures add to
What’s in the interstellar medium?
Space & NavigationIn a nutshell, the interstellar medium is the material that fills the space between stars. 99% of the interstellar medium is made up of (mostly hydrogen) gas and the rest is composed of dust. The interstellar medium is vast and expansive in size but very, very low in density. What are the four components of
Why does Mercury have less gravity?
Space & NavigationSince Mercury has less mass than Earth, the surface gravity on Mercury is less than the surface gravity on Earth. The surface gravity on Mercury is only about 38% of the surface gravity on Earth, so if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. Does Mercury have the
What are the parts of a sundial?
Space & NavigationAlmost every sundial has two basic parts: the pointer and the dial. The pointer, also called a style or gnomon, casts a shadow, indicating the time of day. The numbered dial is the area in which the shadow falls, showing the hour. What are the main parts of a sundial and how do they work?
How far as a percentage does the radiative zone extend to the photosphere?
Space & NavigationAbove the core is a region known as the radiative zone—named for the primary mode of transporting energy across it. This region starts at about 25% of the distance to the solar surface and extends up to about 70% of the way to the surface. How far does the radiation zone extend? The radiative zone
Why was the international space station built?
Space & NavigationPurpose. The ISS was originally intended to be a laboratory, observatory, and factory while providing transportation, maintenance, and a low Earth orbit staging base for possible future missions to the Moon, Mars, and asteroids. What is the main purpose of the International Space Station? The primary objective of the ISS is to support scientific research