What is a blue moon and when does it occur?
Space and AstronomyWhen does a blue moon occur? A blue moon is the second full moon in a calendar month, and the period from one full moon to another is about 29 1/2 days. So, when two full moons occur in the same month, the first one is always on the first or second day of the
Does a function have to pass the horizontal line test?
Space and AstronomyThe function f is injective if and only if each horizontal line intersects the graph at most once. In this case the graph is said to pass the horizontal line test. If any horizontal line intersects the graph more than once, the function fails the horizontal line test and is not injective. What does it
When should a sundial be set?
Space and AstronomyIf you have a sundial in your garden, and you want it to tell time accurately, today is one of the best days to set it. Go out at noon (1:00 p.m., if you’re currently observing daylight savings time), and set yours to 12 o’clock. Sundials can be set on four dates each year for
Is there an eclipse in September 2019?
Space and AstronomyWas there a blood moon in September? September 10–11, 2155 Total Lunar Eclipse (Blood Moon) When’s the next solar eclipse in the world? The next solar eclipse will be a partial solar eclipse on April 30, 2022. It will be the first of two partial solar eclipses in 2022; the second will occur on Oct.
What is a perpendicular angle?
Space and AstronomyPerpendicular lines are lines that intersect at a right (90 degrees) angle. What is an example of a perpendicular angle? Lines that intersect each other forming a right angle are called perpendicular lines. Example: the steps of a straight ladder; the opposite sides of a rectangle. How do you find a perpendicular angle? Video quote:
What is Cpct in congruence?
Space and AstronomyCPCT is corresponding parts of Congruent Triangles. If two triangles are congruent, Their corresponding sides are equal. What is Cpct in congruency? CPCT stands for Corresponding parts of congruent triangles are congruent is a statement on congruent trigonometry. It states that if two or more triangles are congruent, then all of their corresponding angles and
How far is the Earth from the sun NASA?
Space and Astronomy92,900,000 miles Planets: Earth Mars Distance from the Sun* 149,600,000 kilometers (km) or 92,900,000 miles 227,940,000 km or 141,600,000 miles Time it takes to go around the Sun* 365.3 days 687 days Distance across* 12,800 km or 7,900 miles 6,800 km or 4,200 miles Atmosphere Nitrogen Oxygen Carbon Dioxide How far away is Earth from
What causes a rare Proxigean spring tide?
Space and AstronomyA perigean spring tide occurs when the moon is either new or full and closest to Earth. Often between 6-8 times a year, the new or full moon coincides closely in time with the perigee of the moon — the point when the moon is closest to the Earth. These occurrences are often called ‘perigean
What happens if a space suit leaks in space?
Space and AstronomyAll suits therefore leak permanently to some degree. If the amount of leaked air increases above ‘normal’, for whatever reason, a suit’s life support system can increase the amount of air pumped into the suit at the expense of the duration of an EVA. Can you drown in a space suit? Drowning in space A
What do astronauts take with them to space?
Space and AstronomyInformation about the items that astronauts take with them is usually kept very private, but typical PPK items include family photos, organizational flags, t-shirts, ball-caps, books, religious texts, and personal mementos. What do astronauts carry in space? Spacecrafts must provide their passengers with oxygen to breathe. Spacecrafts carry their own sources of oxygen and nitrogen.