Facts game

Factorizing is a way to solve quadratic equations.

Prime numbers only have common factors of 1 and itself.

The square root of -1 is i.

i is an imaginary number.

Imaginary numbers was first a mind exercise.

Exercising is a good way to stay in shape.

There are two kinds of exercises: aerobic and anaerobic.

The word Aerobic originated from the Greek 19th century meaning Aero (bios life) + ic

Zeus is a Greek God.

Roman gods were based on Greek gods.

Some of the gods have the same names as our planets.

Some of our planets with the same names were named after those gods.

Pluto is no longer considered a planet

Until 2005, Pluto was thought to only have one moon.

Earth has One Moon.

It is the TILT of the Earth that gives us the seasons, NOT the actual distance from the Sun.

The minimum distance from the sun to the earth is 146 million km (or 91million miles), and the maximum distance from the sun to the earth is 152 million kilometres (or 94,5 million miles.

The sun is actually a star.

The Sun is actually considered a medium-sized star compared to other stars in the universe. Despite that fact, exactly 1,293,809 Earths can fit inside the Sun. That's over one MILLION copies of the Earth inside a medium-sized star. It's a crazy thing to think about :O

(I surprised myself with that one. I knew 90% of that fact off the top of my head. I knew that roughly over one million could fit, I just wasn't sure on the exact number.)

Catherine shocked me by knowing 90% of that fact of the top of her head.

(I knew 1/3 of that o.O)

Scientists use the Doppler Effect of wavelengths (normally associated with sound) to determine how a star move in relation to the earth, even ones that are light-years away.

A light year is the distance that light travels through space in one Earth year (365.25 days). That distance is equal to exactly 9,460,730,472,580.8 km. (That's over nine TRILLION kilometers!)

Astrophysicists don't usually use the light-year as their preferred measurement of astronomical distances. They use the parsec (parallax of one arcsecond) which is equal to just under 31 trillion kilometres or approx 3.26 light-years.

If a person moves faster than the speed of light, he/she can go back in time.

If a person crosses the International Date Line in an Easterly direction they effectively go back in time.