What is the impact of science and technology on society?

Answer 1

As technology and science increase the standard of living tends to increase because people are able to do more with fewer resources.

As an example:

A farmer with machines is able to farm more land in the same amount of time. Using things like chemical fertilizers they are able to increase crop yields. Again using machines, they can then harvest, process and distribute the end product faster which results in more people having access to more food and having less waste.

Answer 2

Start and Stop Symbologies

At the beginning and end of some bar code symbols, there are "start" and "stop" characters. These characters identify the symbology and also enable the scanner to read the symbol bidirectionally, decoding the data in the correct order. Bar codes also often include a check digit at the end that is determined according to an algorithm based upon the preceding characters.

Quiet Zones

In order for the scanner to recognize the bar code, there must be an 1/4" wide area next to the start and stop characters that contains no markings. If the space is too short, the bar code symbol will not be read by the scanning device.

Interpretation Line

This is a line of human-readable characters that is located usually beneath the bar code.

Bar/Space Patterns

These are the wide and narrow black bars and whites spaces contained in the bar code.

Inter-Character Gap

In some bar codes, like Code 39 (same as Code 3 of 9), each character is printed independently of other characters and is not part of the encoded character and is thus separated by what's called an inter-character gap.When exaggerated, you can see the elements for each character and the inter-gap that separates the characters.

Code Density

Code density refers to the number of data or message characters which can be represented per unit length of space. Four variables affect code density: type of code, ratio of wide to narrow elements and the X dimension.

• Type of Code

  UPC bar codes are used in the U.S. and Canada EAN and JAN symbols are used in Europe and Japan respectively. All bar codes have different structures. Some are able to encode more information per inch than others. The Interleaved 2of5 can encode more numeric information than the Code 3 of 9 in the same amount of space.

• Ratio of Wide to Narrow Elements

  Ratio is important in deciding on the type of scanning device to read the code. Changing the code density of a particular bar code is accomplished by varying the ratio.

  X Dimension

  The width of the narrowest bar or space is referred to as the X dimension, usually given in mils (thousandths of an inch). The X dimension dictates the width of all other bars and spaces, and ultimately the length of the bar code. The greater the X dimension, the more easily a bar code will scan. The smaller the width of the bar, the shorter the length of the symbol, the closer the tolerances are and the more difficult it is to print. The larger the width of the elements, the more space it takes to print the bar code; therefore, the lower the bar code density. The thinner the bar and spaces, the less space is required and the higher the bar code density. Lower density bar codes are more reliably printed and more consistently read than higher density bar codes.

Answer 3

Science and technology have greatly impacted society by improving communication, healthcare, transportation, and access to information. They have also led to advancements in industry and agriculture, contributing to economic growth and increasing standards of living. However, they have also raised ethical concerns around privacy, security, and the potential for job displacement due to automation.

Answer 4

I love new technology within society but with new technology, stress comes too. I have learnt that with technology, stress is a partner.