Another type of jellyfish is the Blue Blubber Jellyfish, also called the jelly blubber or catostylus mosaicus.
This type of jelly lives over by Australia, and swims around with lots of other blue blubbers in big swarms.
Sometimes it is blue, or white or even brown, and it grows to be about 18 inches.
They mostly eat small things like plankton or fish, and they have stingers that hurt people but won't kill a human.
Right on the top middle of your tongue there is a line going all the way from front to back.
This line is the median sulcus, and it divides the tongue into a left and right side.
It's sort of like a line in a piece of paper that's been folded, and most people can fold their tongue in half right there inside their mouth.
With the tongue folded right on that line, sometimes it can help when eating food.
So far we've learned about a lot of castles and palaces, but what's the difference between a castle and a palace?
The word castle comes from the a word meaning "fortified place".
The word palace comes from the hill named "Palatine Hill" in Rome, where the Roman Emperor's lived.
A castle is a place that is fortified, which means it usually has big walls, or a moat, or other ways of protecting the people who live there form being attacked.
It's also the home of a royal person like a lord or noble.
A palace is a big fancy building, and usually the home of someone royal like a king, or bishop, but they are not usually fortified because people are always coming to visit.
Another building name was "fortress" which is kind of like a castle but usually not a home for a royal person.
(from: wikipedia - castle)
(from: wikipedia - palace)
Another part of early Christianity was the Peshitta.
During the time when people were trying to put together the Bible so they could tell others about Christianity,
some people worked to write it down in other languages so people in different countries could read it.
A lot of the Bible was written in Hebrew and Greek, so some people worked to translate it into the Syriac language.
The word peshitta means "simple" or "easy to understand", and it was a book put together so people could tell others in many eastern countries about Jesus.
With this Syriac version of the Bible, people were able to spread Christianity across other countries like Armenia, Georgia, and even China.
The famous Nestorian tablet from China was written from the translation in the Peshitta.
(from: wikipedia - peshitta)
Another Mukteshvara Temple, built around 950 AD in Odisha, India.
This is a large Hindu temple with lots of sculpted columns and shapes all over the building.
The most famous part of the temple is the arched gateway called the torana.
There are two thick pillars with strings of beads, ornaments, scrolls, monkeys, peacocks and beautiful women carved all over them.
The big 34 foot tall square tower inside is called the Vimana.
It has many sculptures of Hindu gods on it, demons and dwarf figures.
Another famous rocket is the Space Shuttle, made in the USA in 1981.
This was a kind of airplane made for doing work in outer space, and then bringing people home.
The space shuttle had two big rockets to help it launch called "Solid Rocket Boosters" or SRBs.
These are the tall skinny white rockets on either side of the shuttle.
These SRBs used solid rocket propellant, together weighed about 2.6 million pounds, were about 150 feet long, and 12 feet wide.
When the shuttle was launched, these rockets helped bring it to 28 miles up into the sky, at a speed of over 3,000 miles per hour.
They used gimbaled thrust like we learned about, to tilt the engine nozzle and steer the rocket, and they used gyroscopes to make sure they were going the right way.
After these rockets ran out of fuel, they would let go of the shuttle and fall to earth with a parachute.
When they made it down to earth, they were found and fixed up and reused over and over again.
The Space Shuttle main engine, called the SSME uses liquid fuel, and has three rocket engines with nozzles at the bottom of the space shuttle.
These engine nozzles also used gimbaled thrust, just like the SRBs.
It holds its fuel in a giant fuel tank called the Space Shuttle external tank (ET).
The ETs weighed over 70,000 pounds, was over 150 feet long, and 27 feet wide.
During launch, the SSME would burn the fuel in the fuel tank for about eight minutes, and then it would drop off the ET which would fall into the ocean and never be reused.
After it was coming back from space it used small thrusters called the Reaction Control System or RCS to help steer it down, and then it mostly flew down to earth like a glider.
The space shuttle flew 135 missions into space, from 1981 to 2011.
