There is a story about Sperm named Sammy who lives in Testis. One day , Sammy wants to meet a beautiful girl named Ms. Ovum. He went to epididymis first ,and drove to Vas Deferens Highway. Ten days ago, Sammy knew a pretty who lives in a female. When Sammy saw Ms. Ovum’s picture first time, he concluded that she must is his true love. Sammy is one of hundreds millions of sperms. Now he’d decided to meet Ms. Ovum.
He droved car, and passed Vas Deferens Highway. The Lake Bladder which took many memory about his childhood appeared in his sight. Then he arrived Seminal Vesicle Dinner, and had an amazing dinner. It’s time to careered, Sammy and many other sperms were drove passed Highway quickly and careered onto Urethra Expressway. This is the only chance to live entwine with his love, now or never. They got away from Expressway to Vagina Land. It is amazing but heavy obstacles, it just like a maze. Sammy through here successful, but many other sperms were not lucky like him, they can’t found the to exit or dead in this “maze”. When Sammy through Vagina Land, she got into a beautiful place named Uterusville. There is a big castle, and it was no one lived here. Here is comfortable and romantic, it is the best place to be a cozy home and lived here with plus one forever. Finally, Sammy found his true love in Oviduct Road. He was the first sperm who was try to met Mr. Ovum. They soon went into that castle and live together. After 10 months, they leaved Uterusville and became a human.
1. Explain what the balloon + dots represent.
The balloon represent the universe, and dots are represent which galaxies are moving farther and farther.
2.Which letter (s) moved the farther from M? Which moved the least.
The dots are closet from neck that are moved least, and the stars that farthest from neck is moved farthest.
3. Summarize the trend: movement of galaxies related to distance from M.
All of galaxies are moving farther and farther form M when the universe is expanding.
4. How does this experiment model what is occurring in our expanding universe? In what way does a balloon Not represent the universe.
This experiment model show that universe is expanding and, galaxies are moving farther and farther each other as universe expands. The balloon might pop, but universe not. The second, the one of endpoint of balloon is not expanding so fast like other part.
how electricity is transmitted to your home
Water has a potential energy, as water falls down the penstock, the potential energy is converted into kinetic energy, which is used to rotate the blade in turbine. When the turbine starts to work, the kinetic energy becomes mechanical energy as the blades are rotating, and also activates the generator, thus the mechanical energy finally is converted into electrical energy.
The electric energy pass grid high voltage transmission line to terminal station, some for electric energy pass subtransmission lines. These energy can be sold transmission voltage to users of large amounts who own and operate their own substation. The other part of electric energy are through distribution substation to our home.
how this transmission process work
The hydroelectricity dam mad water fall down, and the potential energy change to kinetic energy.
When the turbine starts work, the kinetic energy becomes mechanical energy as the blades are rotating, and also activates the generator, thus the mechanical energy finally is converted into electrical energy.
Generators usually produced electricity with a low voltage, the low generator voltage is increased to a higher transmission voltage by a step-up transformer. When the electric energy arrive the terminal station, it would divide in two ways, one way is to customers, another way is to commercial, and small and medium industrial customers.