Who started barter system?

Who started barter system? Phoenicians Who invented money first? No one knows for sure who first invented such money, but historians believe metal objects were first used as money as early as 5,000 B.C. Around 700 B.C., the Lydians became the first Western culture to make coins. Other countries and civilizations soon began to mint […]

Which type of radiation has the highest frequency?

Which type of radiation has the highest frequency? Gamma rays Is the sun radioactive? Photons as light as well, yes? Definition of ‘radioactive’ according to Google: “emitting or relating to the emission of ionizing radiation or particles.” So, the sun emits ionizing particles, and is therefore radioactive. What is the radiation from the sun? All […]

How did the scientific method differ from the approach generally followed by the medieval scholars?

How did the scientific method differ from the approach generally followed by the medieval scholars? The scientific approach differed widely from the approach medieval scholars took. With the scientific method becoming the normal procedure, facts are placed much higher than theory or belief. This means that theories are tested in many different ways and that […]

How is power an enduring issue?

How is power an enduring issue? Power, the ability to influence or control the behavior of people, is significant because it affects a lot of people and has long-lasting effects. Power is an enduring issue because throughout history, we have seen nations across the world have governments wielding varying degrees of power. How is conflict […]

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