Prime Meridian

We just learned about the Arctic Ocean

We learned that the middle of the earth halfway between North and South
is called the equator.

If we want to draw a line like that from the top of the map to the bottom,
to split it into East and West we use the Prime Meridian.

(from: wikipedia - prime meridian)

The main location on the map where the prime meridian is marked is a place called
the Royal Observatory Greenwich, in London England.

Apostle's Creed - Part 8

Apostle's Creed - we're getting there!

We've learned through Part 7 now.

I believe in God, the Father Almighty, maker of heaven and earth.
And in Jesus Christ, his only Son, our Lord
who was conceived by the Holy Spirit, and born of the virgin Mary,
suffered under Pontius Pilate, was crucified, died and was buried.
He descended into hell. On the third day He rose again from the dead.
He ascended into heaven and sits at the right hand of God the Father Almighty.
From thence He will come to judge the living and the dead.

Here's part 8:

I believe in the Holy Spirit,


(from: wikipedia - apostle's creed)

The Holy Spirit lives inside of us, and helps us to make the right decisions in life and to understand God's word.

Planet Mercury

We just learned about ISS - International Space Station.

We know that to remember the eight planets in our solar system we can remember the words:
My very educated mother just served us nachos.

The My in that sentence is for the planet Mercury.

(from: wikipedia - mercury (planet)

Mercury is the closest planet to the sun,
and it's also the smallest of all the eight planets.

Earth orbits around the sun every year, which is 365 days.
Mercury's orbit or year is only 88 days!

The planet has very strange days too.
It takes two whole Mercury years for it to finish one whole day and night.

That means it's daytime and sunny for a whole 88 days (3 months!)
and then totally dark for another 88 days.

French - Black, white, brown, gray

We learned that red orange and yellow, in French is rouge orange and jaune.
and green, blue, purple and pink is vert, bleu, violet and rose.

Let's learn even more!

Black - noir - sounds like no-ah /?/
White - blanc - sounds like blonk /?/
Brown - brun - sounds like buh-ahn/?/
Gray - gris - sounds like guh-ee /?/

And Or logic gates

Last time we learned about true and false
and how they worked in computers like On and Off switches
turning thousands of light bulbs on and off.


(from: wikipedia - incandescent light bulb)

Now think about what would happen if you had two light switches
called switch A and switch B,
and they were hooked up to the same light bulb.


(from: wikipedia - light switch)

Would you have to have both switches set to ON for it to turn on?
Or is just one good enough?

In computers and electronics, we call that using AND and OR.
So if you need both light switches ON to turn on one light bulb,
that means you need A AND B on.

If the light will turn ON with either switch,
that means A OR B.

When people draw out the AND and OR in pictures,
they sometimes call them logic gates. There are different pictures for an AND gate and an OR gate.

The AND gate sort of looks like a big letter D.

(from: wikipedia - and gate)

The OR gate sort of looks like a spaceship!

(from: wikipedia - OR)

Using those logic gates like switches to turn on and off light bulbs,
you can draw up big pictures that can be used as instructions for building a computer!

(from: wikipedia - logic diagram)

Komodo Dragon

We just learned about the Camel Humps.

The dragons you read about in stories aren't real,
but there is a real animal called the Komodo Dragon.

(from: wikipedia - komodo dragon)

It's the largest kind of lizard in the world,
and can grow to be up to 10 feet long!

That means if they stood on their tail
their nose could touch the rim of a basketball hoop!

Femur

The hip bone or pelvis connects to the thigh bone of your leg,
which is called the femur.

The femur is the longest, heaviest and strongest bone in the human body.

(from: wikipedia - femur)