on April 22, 2022
What are the properties of vertically opposite angles?
Space and AstronomyThe point where they meet is called a vertex. When two lines intersect, the opposite (X) angles are equal. In the diagram above, the two green angles are equal and the two yellow angles are equal. These X angles are called vertically opposite angles because they are opposite each other at a vertex. What is
on April 22, 2022
What is the difference between a star and a meteor?
Space and AstronomyMeteors. If a meteoroid comes close enough to Earth and enters Earth’s atmosphere, it vaporizes and turns into a meteor: a streak of light in the sky. Because of their appearance, these streaks of light are sometimes called “shooting stars.” But meteors are not actually stars. Is a meteor considered a star? Video quote: It's
on April 22, 2022
What is Apothem length of a hexagonal prism?
Space and AstronomySo, the apothem of a regular hexagon with 8-cm sides is about 6.93 cm. Where is the apothem in a hexagon? The apothem (sometimes abbreviated as apo) of a regular polygon is a line segment from the center to the midpoint of one of its sides. Equivalently, it is the line drawn from the center
on April 22, 2022
What does an optical interferometer measure?
Space and Astronomyoptical interferometer, instrument for making precise measurements for beams of light of such factors as length, surface irregularities, and index of refraction. It divides a beam of light into a number of beams that travel unequal paths and whose intensities, when reunited, add or subtract (interfere with each other). What can an interferometer measure? Because
on April 22, 2022
Where are asteroids hypothesized to have originated?
Space and AstronomyAsteroids are thought to be leftovers from the formation of the solar system. Where are asteroids hypothesized to have originated? The Voyagers found new satellites and a thin ring around Jupiter. Where did asteroids originally come from? Asteroids are leftovers from the formation of our solar system about 4.6 billion years ago. Early on, the
on April 22, 2022
What is sliding caliper?
Space and AstronomySliding caliper It is a variation of the floating caliper design, using a single piston and operating on the same principle – the piston applies pressure to one brake pad and the movable caliper applies pressure to the other. The caliper is held against a light source in this position. What is a sliding brake
on April 22, 2022
What were sundials used for in ancient times?
Space and Astronomysundial, the earliest type of timekeeping device, which indicates the time of day by the position of the shadow of some object exposed to the sun’s rays. What was a sundial originally used for? World’s oldest known sundial, from Egypt’s Valley of the Kings (c. 1500 BC), used to measure work hours. How sundials were
on April 22, 2022
How high do space shuttles orbit?
Space and Astronomy190 miles to 330 miles190 miles to 330 miles (304 kilometers to 528 kilometers) above sea level, depending on its mission. How high of an orbit could the space shuttle go? The Shuttle is designed to reach orbits ranging from about 185 kilometers to 643 kilometers (115 statute miles to 400 statute miles) high. The
on April 22, 2022
When can I see shooting stars in the UK?
Space and AstronomyThe next meteor shower to grace the skies of the UK is the Lyrids. The shower is expected to be visible between 14 and 30 April, with the peak on 22-23 April. The dates of when you can see each shower, plus the peak and the number you can expect to see per hour, are
on April 22, 2022
What does depth of a table mean?
Space and AstronomyDefinition of depth table. : a table used in the appraisal of real estate that shows in percentages the variations of land value attributable to differences in the depth of lots. What is depth of a table? Depth Table Definition. A depth table is a table used by real estate appraisers to show land values