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ehidna [41]
3 years ago
6

How was science used to make television?

Computers and Technology
2 answers:
Cloud [144]3 years ago
6 0

Answer:

Sir William Crookes invented the cathode ray tube in 1878, but these discoveries took many years to merge into the common ground of television. ... His mechanical system used a scanning disk with small holes to pick up image fragments and imprint them on a light-sensitive selenium tube. A receiver reassembled the picture.

<em>Television is really a three-part invention: the TV camera that turns a picture and sound into a signal; the TV transmitter that sends the signal through the air; and the TV receiver (the TV set in your home) that captures the signal and turns it back into picture and sound. </em>

<em>https://www.jstor.org/stable/20024824</em><em> </em><em>(</em><em> </em><em>This </em><em>link </em><em>is </em><em>helpful</em><em>)</em>

Wewaii [24]3 years ago
5 0

Answer:

Sir William Crookes invented the cathode ray tube in 1878, but these discoveries took many years to merge into the common ground of television. His mechanical system used a scanning disk with small holes to pick up image fragments and imprint them on a light-sensitive selenium tube. A receiver reassembled the picture.

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Create a string called alphabet containing 'abcdefghijklmnopqrstuvwxyz', then perform the following separate slice operations to
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Answer:

There is no short answer.

Explanation:

First let's create the string:

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The first half of the string using slice method can be written as:

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The first half of the string using only the ending index can be written as:

  • alphabetString.slice(-13);

When we put - at the start of the index number, the counting begins at the last element with -1 and goes backwards.

The second half of the string can be written as:

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The second half of the string using only the starting index can be written as:

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To get the every second letter in the string, we need a for loop:

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                 alphabetString.slice(x);

}

To get the entire string in reverse, we can use the reverse method that is built-in:

  • alphabetString.reverse();

To get the every third letter of the string, we can again use a for loop:

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7 0
4 years ago
List and describe the five moral dimensions that are involved in political, social, and ethical issues. Which do you think will
lukranit [14]

The five moral dimensions are:

  • Information rights and obligations.
  • Property rights and obligations
  • System quality.
  • Quality of life,
  • Accountability and control.

I see that Quality of life is most difficult for society to deal with as there ae lots of rich and poor people and the government have not been able to bridge the gap between them.

<h3>What are the morals about?</h3>

The five main moral dimensions that are known to be written above are said to be tied together in regards to ethical, social, and political issues that are seen in any information society.

Therefore, The five moral dimensions are:

  • Information rights and obligations.
  • Property rights and obligations
  • System quality.
  • Quality of life,
  • Accountability and control.

Learn more about moral dimensions from

brainly.com/question/15130761

#SPJ1

3 0
2 years ago
Fill up the blank:- The picture that graphically represents the items you use in Windows is called a/an .......
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The picture that graphically represents the items you use in Windows or any other OS is called an Icon. An icon is a picture that represents the program that is being used. An icon is useful for the user's to directly know what type of program they need to use or such.
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Explanation:

:*):*):*)*)*:)*:)*:*)*:**:*)*:)*:)*:*):*)*P:)*:*):*)

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6 0
3 years ago
Suppose a linked list of 20 nodes. The middle node has a data –250. Write the pseudocode to replace the middle node of the linke
dexar [7]

Answer:

The middle node has a data –250. ... Write The Pseudocode To Replace The Middle Node Of The Linked List With ... Assume That The List's Head Pointer Is Called Head_ptr And The Data For The New Node Is Called Entry ... Assume that the list's head pointer is called head_ptr and the data for the new node is called entry ...

Explanation:

4 0
4 years ago
Read 2 more answers
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