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Traffic lights use coloured fillters as well as Disco lights and Lamp post lights.

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14y ago

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Continue Learning about Political Science

Is political science science or social science?

Except for everyday use


How does history affect daily life?

All of history is connected from the days you celebrate, the clothing you wear, the sports you play and watch, the food you eat, and the technology you use. Everything has a foundation in history. I imagine you have a cell phone with you, but the cell phone was first thought about in 1930 because of police radios. It was finally invented by Dr. Martin Cooper in 1974. And sold to the public in 1984. Everyday history is created or made. What you do today is history tomorrow. Understanding history helps us understand ourselves and hopefully prevent us from making the some of the same mistakes.


Can power plants and sea life coexist?

power plants and sea life can coexist when humanity can find out how to use the benefits of power plants without risking the natural surrounding out. When they find out how to do this difficult task then will power plants and sea life can exist in harmony


How many people use BCE instead of BC?

While they may not be the language of everyday life, the new terms BCE, Before Common Era and CE, Common Era (first invented in the sixth century AD) are now the rule in order to express politically correct sensitivity to non-Christians. Earlier this year, the first print run of a four-volume Encyclopedia of Christian Civilization was pulped by its American academic publishers following an outcry that it was biased in favour of Christianity, evidenced by its use of BC and AD instead of BCE and CE. But, whether it's BC or BCE, both systems take the Gregorian calendar as their starting point .


What is a panchatantra?

Panchatantra is an ancient Indian collection of interrelated animal fables. It is a legendary collection of short stories that provides moral and ethical guidance through the adventures of animals. The stories aim to teach important life lessons and principles through the use of allegory and anthropomorphism.