What does 4i mean in math?
Space & NavigationAs a double check, we can square 4i (4*4 = 16 and i*i =-1), producing -16. All negative square roots are called “imaginary numbers” (now you know where that letter ‘i’ comes from). Complex Numbers. When a number has the form a + bi (a real number plus an imaginary number) it is called a
What is the closest Venus gets to Earth?
Space & NavigationThe closest possible opposition distance between Earth and Venus is 38 million kilometers. This is the closest that any planet comes to Earth. The farthest that Venus ever gets from Earth is 261 million km. What year will Venus be closest to Earth? Its last superior conjunction occurred on March 26, 2021 and the next
How do you spell discreet or discrete?
Space & NavigationDiscrete means “separate,” while discreet means “unobtrusive.” Both words have the same etymology coming from the Latin discretus which means “to keep separate” or “to discern.” An easy trick to tell them apart is to remember is that the “e’s” are separated by the “t” in “discrete.” What is discrete person? discreet/ discrete Discreet means
Is the sun located in the center of the Milky Way?
Space & NavigationBottom line: The sun is about half the distance from the center of the Milky Way galaxy to its outer edges. It’s located in a smaller spiral arm – the Orion Arm – between two large arms. Is the sun at the center of the Milky Way? The Milky Way is about 1,000,000,000,000,000,000 km (about
Which star is Betelgeuse in Orion?
Space & NavigationBetelgeuse, also called Alpha Orionis, second brightest star in the constellation Orion, marking the eastern shoulder of the hunter. Its name is derived from the Arabic word bat al-jawzāʾ, which means “the giant’s shoulder.” Betelgeuse is one of the most luminous stars in the night sky. Is Betelgeuse in Orion’s belt? Betelgeuse is one of
Is the Kuiper belt the same as the asteroid belt?
Space & NavigationThe Kuiper belt (/ˈkaɪpər/) is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 astronomical units (AU) to approximately 50 AU from the Sun. It is similar to the asteroid belt, but is far larger—20 times as wide and 20–200 times as massive. What is the difference between