Category: Space and Astronomy

How does a quadrant work?

The quadrant is a very simple tool that allows the user to determine his or her latitude by measuring the altitude of a heavenly body. When used in celestial navigation or astronomy, altitude means the angle of elevation between the horizon and celestial bodies like the sun, planets, moon, or stars. How do you measure

What are the purple lights in the sky?

What is the purple glow in the sky? Environment Canada says the light could have been created by a rare atmospheric phenomenon. Particles in the atmosphere, such as dust, salt and soot, are called aerosols. The purple light was seen after sunset and is created by a break in the clouds. Why did the sky

How many more meaning in math?

“how many more” means how many persons having more than one person. “how much more” means the measurement/quantity more than entity/person. What does it mean when math says how many more? how many more” indicates that you are finding the difference. So if you subtract the smaller value from the larger value, you will find

What causes the third quarter moon?

THIRD QUARTER This phase happens when the Moon is at a 90-degree angle to the Earth and Sun. We see half the Moon illuminated and the other half in shadow. In the third quarter, we see what looks like the left half of the Moon. What is the third quarter moon phase? Third Quarter: The

What is the formula of lateral surface area of sphere?

= 2πrhLSA = 2πrh or 4πr2 (If a diameter of sphere = 2r). What is the formula to find the lateral area of a sphere? 4 π r2 square units A = 4 π r2 square units Lateral Surface Area. What is TSA and CSA of sphere? The formula does not take into account the

How does Earth look from Moon?

From the moon As we pass the moon – some quarter million miles (about 380,000 km) away – Earth looks like a bright ball in space. It’s not terribly different from the way the moon looks to us. EarthSky lunar calendars show the moon phase for every day in 2021. Can we see Earth from

What is an identity vector?

The th column of an identity matrix is the unit vector , a vector whose th entry is 1 and 0 elsewhere. The determinant of the identity matrix is 1, and its trace is . How many vector identities are there? There are two lists of mathematical identities related to vectors: Vector algebra relations —

How do we use satellites in everyday life?

What Are Satellites Used For? Television. Satellites send television signals directly to homes, but they also are the backbone of cable and network TV. … Telephones. … Navigation. … Business & finance. … Weather. … Climate & environmental monitoring. … Safety. … Land stewardship. How are satellites used in everyday life? Artificial satellites can be

What do you mean by parallel sides?

Definition of Parallel Two sides or lines are parallel if they are lines that are always the same distance from each other and will never intersect or touch. How do you find parallel sides? Parallel sides are always the same distance apart. Parallel sides are sides that do not cross. To check if sides are

Why is a real number also a complex number?

Because either part could be 0, technically any real number or imaginary number can be considered a complex number. Complex does not mean complicated; it means that the two types of numbers combine to form a complex, like a housing complex — a group of buildings joined together. Is a real number also a complex

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