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3 years ago

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.

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.

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

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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In an experiment in which participants sat in an office and then were asked to remember what they saw in the office, participant

Inessa [10]

Answer:

The answer to this question is the "schemas".

Explanation:

A schema is plural schemata or schemas that defines a pattern of logic or action that constitutes classifications of data and the connections among them. In a computer science schemas is an organized structure for a database and all the operation of data modeling leads by schema. So the answer to this question is schemas

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3 years ago

Create and Provide complete program that includes a comments header with your name, course, section and other program details an

agasfer [191]

Answer:

Written using C++

/*Enter Your Details Here*/

#include<iostream>

#include<cmath>

using namespace std;

int main()

{

//1

float side;

cout<<"Enter the side of a square: ";

//2

cin>>side;

//3

float perimeter = 4 * side;

cout<<"The perimeter is "<<perimeter<<endl;

//4

float area = side *side;

cout<<"The area is "<<area<<endl;

//5

float diagonal = sqrt(2 * side * side);

cout<<"The length of the diagonal is "<<diagonal;

return 0;

}

Explanation:

I've added the full source code as an attachment where I used more comments to explain difficult line

Download cpp

7 0

3 years ago

Which of the following is not a key component of a structure?

valentina_108 [34]

D. Enumerations! Because I know that is NOT a leg compentent of a structure

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3 years ago

In which step of writing a program does a programmer first use a compiler? documentin

Allisa [31]

A compiler is often used when you want to test your code; that would often be your second step.

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3 years ago

Keyboards that are widely used on various smartphones and other small portable devices, and which are designed primarily for com

mr Goodwill [35]

Answer:

Option A is the correct answer for the above question.

Explanation:

The keyboard is a device, by which a human can instruct the computer in the text form. There are so many keyboards in which, thumb keyboard is one of them. The thumb keyboard is found in mobile phones, smartphones or PDA phones, which is used for personal use. It is a designed layout of the keyboard that can be placed on the hand of the human and a person can type on its with the help of his thumb.

The above question asked about the type of the keyboard which is used in various smartphones and other phones. That keyboard is thumb keyboard which is described above and it is stated from the option A. So option A is the correct answer while the other is not because--

Option B states about the traditional keyboard which is used for the PC only.
Option C states about the Notebook keyboard which is used for the Notebook computers only.
Option D states about combination which is not a type of keyboard.

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3 years ago