English, 10.12.2021 16:40 myleefaustin

Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison filed his first patent application for "Improvement In Electric Lights" on October 14, 1878. In the three decades before this numerous similar patents had been filed by other inventors. After many experiments with platinum and other metal filaments, Edison returned to a carbon filament. The first successful test was on October 22, 1879, and lasted 13.5 hours. Edison continued to improve this design and by November 4, 1879, filed for a U. S. patent for an electric lamp using "a carbon filament or strip coiled and connected ... to platina contact wires." Although the patent described several ways of creating the carbon filament including using "cotton and linen thread, wood splints, papers coiled in various ways," it was not until several months after the patent was granted that Edison and his team discovered that a carbonized bamboo filament could last over 1200 hours. Which sentence represents a digression that is not relevant to the point of the passage?
A) The first successful test was on October 22, 1879, and lasted 13.5 hours.
B) Thomas Edison began serious research into developing a practical incandescent lamp in 1878.
C) In the three decades before this numerous similar patents had been filed by other inventors.
D) After many experiments with platinum and other metal filaments, Edison returned to a carbon filament.

Answers: 3

Show answers

Another question on English

English, 21.06.2019 14:30

If you were starving, what would you do for food? "condensed milk" tells the story of a political prisoner in a russian gulag (a forced-labor camp) who is faced with a choice: stay in the gulag—working and starving—or escape from the prison and risk dying. what choice would you make? historical context: from 1929 to 1953, joseph stalin was the dictator of the soviet union. his goal was to transform the soviet union from a poor society into a world superpower. he used terror and violence to rule, and under his reign, millions of his own people died in work camps, from starvation due to famine, or by execution. select a detail to support the idea that russian gulags treated prisoners cruelly. prisoners faced choices. prisoners had to work. prisoners tried to escape. prisoners were starving.

Answers: 2

Answer

English, 21.06.2019 16:10

Read the sample student claim and the reasons listed for making this claim. claim: although many people argue that medical testing on animals is a violation of animal rights, the benefits it yields for society far outweigh any argument that can be made. reason #1: animal research has yielded both pain-relieving and life-saving drugs for humans. reason #2: laws prohibit scientists from using animal-based research in cases where non-animal testing would produce equally clear and valid results.

Answers: 3

Answer

English, 22.06.2019 00:30

“third, all reviewers have a bias – no matter how impartial they try to be, opinions on movies are just that: opinions. this isn’t necessarily a bad thing: if you read a review by a critic that you know prefers foreign films, you know how seriously you should take his scathing critique of ironman.” according to this passage, all reviewers a. prefer foreign films c. have bias b. hated the movie ironman d. refuse to watch popular films

Answers: 3

Answer

English, 22.06.2019 03:20

Find a newspaper or magazine (either print or digital form), and select one piece of media to evaluate. after reading/viewing the media, describe it, and explain what you believe the purpose and intended audience of the piece may have been. then, label the techniques (images, layout, video, sound, etc.) that were used, and how those techniques interacted to create either an effective or ineffective piece of media. your response should be at least 200 words.

Answers: 1

Answer

You know the right answer?

Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison f...

Questions