Friday, February 14, 2020

Russian - He is angry


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

Now let's learn how to say He is angry.

Он сердится (On serditsya)

He - Он (On) - sounds like oh-n 文A
angry - сердится (serditsya) - Sounds like see-ay-dr-dee-t-ss-yah 文A

So all together Он сердится (On serditsya) sounds like oh-n see-ay-dr-dee-t-ss-yah.

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

Norwegian: Han er sint

Greek: Είναι θυμωμένος

ASL: He is angry

Italian: Lui è arrabbiato

German: Er ist wütend

Spanish: Él está enojado

French: Il est en colère

Thursday, February 13, 2020

Encoder


We just learned about the Servo, that has sensors to tell it when to start or stop.

One part of a servo is the Encoder.

An encoder is like a map that the servo uses, so when the machine moves it knows where it is and when to stop.
Encoders have markings on them that a sensor can see to tell the machine that it is moving.

A rotary encoder is a type of encoder for a machine that spins.
It has lines on it to help the machine figure out how far it spins around.
If a machine spins to the right, the sensor might see 10 black lines go by.
The machine would then know that if it wanted to go back to where it started, it could spin the other way until it counted 10 black lines go by.


(from: wikipedia - rotary encoder)


Kid Facts - Blast from the past: R-7 Rockets

Wednesday, February 12, 2020

Leopard


We just learned about the Jaguar.

Another type of wild cat is the Leopard.

Leopards are also part of the Felidae family just like lions, tigers and jaguars, and they are part of the smaller family of panthera just like the jaguar.
They live in the southern parts of the African and Asian continents.

Leopards can grow to be over 6 feet long, and weigh 200 pounds. They have a super long tail that can be 3 feet long.

There are a bunch of different types of leopards, usually living in different places like the African leopard, Indian leopard, Javan leopard, Arabian leopard, Persian or Anatolian leopard, Amur leopard, Indochinese leopard, and Sri Lankan leopard.

The leopard looks a lot like it's cousin the jaguar, but it is usually smaller and the rosette spots on its fur are usually smaller.
They can live in different areas, like grasslands, woodlands and rain forests.

Leopard cubs can live with their mothers for about 2 years before they go off on their own, and boy leopards usually live all by themselves.

On a leopard's ears and tails are white tufts of hair, and people think that the leopards can use those to talk to each other.
So if a leopard flicks it's ears or tail it might be trying to tell another leopard something like "get away" or "follow me".





(from: wikipedia - leopard)


Kid Facts - Blast from the past: Crystal Jelly

Tuesday, February 11, 2020

Saccade


We just learned about Peripheral Vision.

Another part of the eye is the Saccade.

When your eyes move, sometimes they move fast and sometimes they move slow.
If you quickly switch from looking at one spot to looking at another spot, that is called a saccade.

So if you are holding your open hand out, you can stare at your thumb and then quickly switch to staring at your pinky.
You don't need to slowly move your eyes along across the middle of your hand until you stop at your pinky, you just zip right over and look at it, and you can switch back and forth easily.

The word saccade is French for jerk, like a jerking movement as your eyes move around.


(from: wikipedia - saccade)


Kid Facts - Blast from the past: Filiform Papillae

Monday, February 10, 2020

Marie Byrd Land


We just learned about the Ross Sea.

Another part of Antarctica is Marie Byrd Land.

This is part of West Antarctica, and it is about 620,000 square miles.

A lot of parts of Antarctica have research stations or areas where countries of the world have said they own, but this part of Antarctica is not owned by anyone.

Because of this it is the biggest piece of land in the whole world that is not owned by anyone.

There have been some camps set up out in the middle of this land area to try and study it, and usually to try and drill very far down into the ice to see what it is like far below the surface.



(from: wikipedia - marie byrd land)


Kid Facts - Blast from the past: Chillon Castle

Sunday, February 9, 2020

Saint Ansgar


We just learned about the Vikings and Christians.

Another person from early Christianity was Saint Ansgar.

We learned about King Charlemagne and how he helped Christianity grow through Europe.

A man named Ansgar who grew up being taught by monks about God and Jesus.
Charlemagne wanted someone to go north to the countries of Denmark, Norway and Sweden, so he told Ansgar to go and try to tell people up there about Christianity.

He met with a lot of kings and helped start some churches, but he also had problems because a lot of the kings in that area were fighting with each other.
So he could make friends with one king, and then a few years later that king wasn't in charge anymore and he had to leave and come back later.

He still helped spread the word to the northern countries there and set up some churches and told a lot of people about Christianity.


(from: wikipedia - ansgar)


Kid Facts - Blast from the past: Antilegomena

Saturday, February 8, 2020

Angel of the Waters - Emma Stebbins


We just learned about the Forever Free - Edmonia Lewis.

Another famous American sculpture is Angel of the Waters by Emma Stebbins in 1873.

Emma was born in New York in 1815, where her parents helped get her into schools that would teach her to be an artist
When she was 41 years old, she moved to Italy to learn from famous sculptors.

She was the first woman who was paid to do art for New York City, when she made the Angel of the Waters statue, sometimes also called Bethesda Fountain.
This statue is in New York's famous Central Park, and has a big fountain around it, and a big area for people to walk around.

It is an 8 foot tall bronze satue of an angel that is touching the top of the fountain where water is spouting up and around.

There are four small cherubs called Temperance, Purity, Health, and Peace.

This fountain is supposed to be about the story where Jesus healed a man who could not walk who was sitting by a fountain of healing.


(from: wikipedia - bethesda fountain)


Kid Facts - Blast from the past: Ellora - Jain Caves