Friday, February 21, 2020

Russian - They are excited

We just learned that in Russian I am happy is Я счастлив (ya shastliv),
you are sad is Ты грустный (Ty grustnyy),
and he is angry is Он сердится (On serditsya).

Let's learn how to say they are excited.

Они взволнованы (Oni vzvolnovany)

They - Они (Oni) - Sounds like oh-nee 文A

are excited - взволнованы - (vzvolnovany) Sounds like v-z-voh-l-noh-vah-nee 文A

So all together Они взволнованы (Oni vzvolnovany) sounds like oh-nee v-z-voh-l-noh-vah-nee.

russian language
(from: wikipedia - russian academy of sciences)

Norwegian: De er begeistret

Greek: Είναι ενθουσιασμένοι

ASL: They are excited

Italian: Sono eccitati

German: Sie sind aufgeregt

Spanish: Ellos estan emocionados

French: Ils sont excité

Thursday, February 20, 2020

Negative Feedback

We just learned about the Encoder.

Another part of a servo is Negative Feedback.

When a servo machine is working, and it needs to tell the motor to STOP, it needs some sort of a sensor that tells it when to stop.

A negative feedback part of a machine is something that senses when something gets to a point where it needs to stop, and the movement of the machine stops the machine itself.

That might sound sort of confusing, but if you think about a real world example it makes sense.

In a toilet there is usually a type of ball that is floating in the water in the tank.
When there is no water, the ball is hanging down, which lets the water flow in to fill up the tank.
As the water starts to rise, it gets to the ball and starts to make it float.
When it gets high enough, the ball is floating and it is connected to a valve that closes to stop water coming in.

So the ball floating is the negative feedback saying CLOSE THE VALVE AND STOP LETTING WATER IN, and the more the ball floats up the more the valve closes until it is totally closed and the water stops coming in.

(from: wikipedia - negative feedback)

Kid Facts - Blast from the past: SM-65 Atlas

Wednesday, February 19, 2020

Black Panther

We just learned about the Leopard.

Another type of Wild Cat is the Black Panther.

The black panther is not really a different type of cat, it is just a different color of cat.
Both the leopards that live in Africa or Asia, and the jaguars that live in the Americas can be born with black fur.

For a long time people thought this was a whole different type of cat, but scientists figured out later that they were just the same cats with different fur.

Sometimes leopards or jaguars can have fur that is totally black, and other times just part of their fur is very dark but you can still see spots on the other parts.

(from: wikipedia - black panther)

Kid Facts - Blast from the past: Flower Hat Jellyfish

Tuesday, February 18, 2020

Smooth Pursuit

We just learned about the Saccade quick jumpy eye movements.

Another type of eye movement is called Smooth Pursuit.

This is where your eye can follow something that is moving along without losing sight of it.
So if someone throws a ball up in the air, your eyes can focus on the ball and watch it the whole time as it goes up and down.

Or if someone hits a baseball, your eyes can watch it go through the air and you can run to catch it.

(from: wikipedia - smooth pursuit)

Kid Facts - Blast from the past: Fungiform Papillae

Monday, February 17, 2020

Antarctic Territories

We just learned about the Marie Byrd Land.

Another part of Antarctica is the Antarctic Territories.

Whenever there is land to be discovered, someone always wants to plant their flag on it and call it their own.

Antarctica has 11 different territories that are claimed by different countries, like France, Argentinia, Australia, Britain, Chile, Norway, New Zealand, Brazil and Uruguay.

Most of the territories start at the south pole and go out like a triangle shape toward the edge of the water.
Australia has the biggest one called the Australian Antarctic Territory (AAT) that covers over 5 million square kilometers.

The only place that is not claimed is Marie Byrd Land.
Even though the land is claimed by a country, there might only be 200 or so people living in the whole area all year long.

(from: wikipedia - australian antarctic territory)

Kid Facts - Blast from the past: Castillo de Colomares

Sunday, February 16, 2020

Glagolitic Script

We just learned about the Saint Ansgar.

Another part of early Christianity is the Glagolitic script.

When some people wanted to go to parts of Eastern Europe to tell people about Christianity, they had a problem.
The language called Old Slavic that the people spoke and wrote in was not something taught in schools, and there weren't books for how to read it or write it.

This was a problem because they wanted to give people Bibles and other writings to learn about Christianity, but nobody knew how to write in their language.

So some church workers named Cyril and Methodius worked to come up with an alphabet that they could put into books and then teach to people so they could read and write in this language.

The alphabet they came up with was called the Glagolitic Script.
The word really means something like "speaking letters" and it got it's name many years after the alphabet was made.
Because they worked so hard to make this Glagolitic script, they could go to Eastern Europe and teach people about God and Jesus.

(from: wikipedia - glagolitic script)

Kid Facts - Blast from the past: Decian Persecution

Saturday, February 15, 2020

Abraham Lincoln - Vinnie Ream

We just learned about the Angel of the Waters by Emma Stebbins.

Another famous sculpture made by a woman from American history is the statue of Abraham Lincoln made by Lavinia "Vinnie" Ream in 1871.

Vinnie was born in Madison Wisconsin in 1847.

When she was 14 her family moved to Washington D.C. where she got a job at the post office, and as a singer at church.
When she was 16 she got a job as an apprentice for a sculptor, and then when she was 18 President Abraham Lincoln asked her to make a sculpture of him to be used in Washington D.C.

Shew as the youngest artist and first woman to get hired by the US government to make a statue.

She sat with Lincoln every day for a month to try and look at him and make the sculpture as real looking as possible.

Vinnie once said "I think that history is particularly correct in writing Lincoln down as the man of sorrow. The one great, lasting, all-dominating impression that I have always carried of Lincoln has been that of unfathomable sorrow, and it was this that I tried to put into my statue."

(from: wikipedia - vinnie ream)

Kid Facts - Blast from the past: Elephanta Caves