How was the sun’s corona discovered?
Space and AstronomyBefore sophisticated instruments and spacecraft, the only way to study the corona from Earth was during a total eclipse, when the Moon blocks the Sun’s bright face, revealing the surrounding, dimmer corona. The story of the coronal heating problem begins with a green spectral line observed during an 1869 total eclipse. When was the corona
What are the major features of the moon?
Space and AstronomyThe surface of the moon The moon’s surface is covered with dead volcanoes, impact craters, and lava flows, some visible to the unaided stargazer. Early scientists thought the dark stretches of the moon might be oceans, and so named such features mare, which is Latin for “seas” (maria when there are more than one). What
How does the sun make light for kids?
Space and AstronomyHow the Sun makes light for kids? Video quote: Energy. Just like plants capture sunlight in the process of photosynthesis people capture sunlight using these things called solar panels isn't that cool. How does sunlight give light? Fusion occurs in the sun’s innermost core, when two atoms merge, releasing energy and light in the process.
How many impact craters are on earth?
Space and AstronomyMeteors, comets and asteroids have slammed into the earth with a force many times greater than the most powerful nuclear bombs. Sometimes, mass extinction followed. There are roughly 180 known impact craters worldwide and fully a third of them—including some of the biggest—are located in North America. What is the biggest impact crater on Earth?
How things are shaping up?
Space and AstronomyIf something is shaping up, it is starting to develop or seems likely to happen. If you ask how someone or something is shaping up, you want to know how well they are doing in a particular situation or activity. What does shaping something mean? 1 : form, create especially : to give a particular
Does the relation represent a function?
Space and AstronomyWRITING IN MATH How can you determine whether a relation represents a function? SOLUTION: A relation is a function if each element of the domain is paired with exactly one element of the range. If given a graph, this means that it must pass the vertical line test. How do you know if the relation
What causes an accretion disk?
Space and AstronomyThe accretion disk forms when diffuse material is attracted to a massive central body, like a black hole. The flattened shape of the accretion disk is due to angular momentum, which dictates the particles’ motion as they rotate around the black hole. How does an accretion disk form? Black holes are formed when massive stars
What is a terminal point?
Space and AstronomyWhat is the terminal point in math? To find the terminal point on the unit circle, start at (1,0), measure the angle in degree or radian on the circle (move counter clockwise if the angle is positive and clockwise if the angle is negative.) The coordinate of the endpoint is called the terminal point. How
How hot is the radiative zone?
Space and AstronomyRadiative zone temperatures Outside the sun’s core lies the radiative zone where temperatures range from 12 million degrees F (7 million degrees C) nearest the core to around 4 million degrees F (2 million degrees C) in the outer radiative zone, according to the educational website Study.com. Which layer is the radiation zone? In the
What is a comet and example?
Space and AstronomyThe definition of a comet is a celestial body that moves around the sun, and as it goes near the sun it forms a vapor trail of dust and gas that streams after it. An example of comet is Haley’s. What is comet explain? Comets are frozen leftovers from the formation of the solar system