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Q: The benefits of increased automation of devices that could put us in danger if they malfunction outweigh the risks?
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Do the benefits of technology outweigh its costs and potential dangers?

Humans cannot survive without the technologies that they created. However a costs/benefits analysis is usually appropriate when introducing any new technology, as in many cases several different technologies may be available to satisfy a given human need.


What is the debate about GMO's?

against - could release herbicide resistance into wild strains, messing with genes in innately evil, people are scared, there could be unforeseen consequences. for- It's a good idea, less pesticides etc in the environment, more food, cheeper food, food in hostile environments, feed the hungry and the poor. climate change makes it nessesery. little chance something very bad will happen, benefits outweigh the costs.


Why is desalination bad?

Desalination has very high energy requirements and since most countries with desalination plants do not have nuclear power, it results in the burning of lots of more coal. Additionally, the methods by which salt is removed from water create a resulting "salt-slurry" which is ejected as waste in to the original saltwater body. This salt-slurry makes the area around the desalination plant poisonous for the local sea-life.However, in almost every case, the positives of desalination outweigh these negatives.


Why three phase motor has the better performance when compare to single phase motor?

If you are asking what is the advantage of a motor wound for a Y or Delta configuration over a motor wound for a single phase configuration, then the advantage of the Y or Delta motor is more efficient operation. And in a motor, or in any power application, efficiency is all important.


When you add more bulbs to a series circuit?

Wiring bulbs in a series is useful in certain applications. For example decorated lighting on holiday trees using multiple bulbs on a single circuit. This is useful by keeping the circuit linear and simple and allows for a single switch. The disadvantages to having multiple bulbs on a linear circuit is that if one bad bulb turns off the whole circuit.