Read the excerpt from A Black Hole Is Not a Hole by Carolyn Cinami DeCristofano, and answer the question.
In this way of thinking, the "backgroundâ acted more like a flexible mat, or a stretchy knit blanket. This new, blanket-like idea of space meant space could stretch, crunch up, bend, and warp. Moving objects would follow the curves of the blanket, moving along the surface through flat sections as well as distorted ones. This new idea about space changed the way scientists think about gravity.
Speaking of Gravity: Newtonese and Einsteinese
Most of the time gravity seems to work the way Newton described it. Newton's rules explain a lot, from falling apples to most planetsâ orbits. But his laws don't work perfectly. In high-gravity zones, Newton's ideas don't jibe with what scientists observe. For example, Mercury's orbitâup close to the Sunâhas a blip in it that Newton's laws can't explain.
Glitches like this one were the reason Einstein worked so hard at coming up with a new explanation. He wanted to account for everything. His ideas about curving space may sound bizarre, but they work! They took care of the gaps in Newton's theory and explained Mercury's orbit. They led scientists to predict shifting starlight and black holes. All of this is powerful evidence that Einstein was on to something.
According to the excerpt, what helped Einstein to draw the conclusion that space was like a stretchy blanket rather than rigid nothingness, as Newton believed?
This new idea about space changed the way scientists think about gravity.
Most of the time gravity seems to work the way Newton described it.
Newton's rules explain a lot, from falling apples to most planets' orbits.
Mercury's orbitâup close to the Sunâhas a blip in it that Newton's laws can't explain.
Answers: 3
English, 21.06.2019 20:00
Danny went for a long bike ride he covered at least forty miles
Answers: 1
English, 21.06.2019 23:00
Write four sentences that incorporate âimageryâ (all of your senses) to describe a place that you like to visit.
Answers: 1
English, 22.06.2019 04:00
Javier is writing a literary analysis of the secret garden. read this introduction to his essay. frances burnettâs âthe secret gardenâ explores the challenges of a sickly, self-centered little girl named mary lennox. after maryâs parents die of cholera, she moves from india to england to live at her uncleâs estate in yorkshire. while living at the old estate, mary discovers an abandoned garden that belonged to her deceased aunt. tending to the neglected garden brings mary joy, and her health improves. through maryâs transformation, burnett presents nature as a symbol of rebirth and healing. which piece of textual evidence should javier use to support the claim made in the introduction? a. ââitâs in the garden no one can go into,â she said to herself. âitâs the garden without a door. he lives in there. how i wish i could see what it is like! ââ b. âin india she had always felt hot and too languid to care much about anything. the fact was that the fresh wind from the moor had begun to blow the cobwebs out of her young brain and to waken her up a little.â c. âmary felt lonelier than ever when she knew she was no longer in the house. she went out into the garden as quickly as possible, and the first thing she did was to run round and round the fountain flower garden ten times.â d. ââit isnât a quite dead garden,â she cried out softly to herself. âeven if the roses are dead, there are other things alive.ââ
Answers: 3
English, 22.06.2019 05:30
Read the passage, then use the explanation to infer the meaning of the word predominant. the novel was so popular that it was eventually added to a list of books that every ninth grader had to read. it became the predominant work of literature. what is the most likely definition of the word predominant?
Answers: 1
Read the excerpt from A Black Hole Is Not a Hole by Carolyn Cinami DeCristofano, and answer the ques...
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