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In 1900, the most powerful nations in the world were the British Empire, the Russian Empire, the German Empire, and the United States. These countries held significant military, economic, and colonial power on the global stage.
The unit for measuring long distances used by most nations of the world is the kilometer.
The most powerful telescope in the world is called the James Webb Space Telescope (JWST). It is a space-based observatory designed to study the universe in infrared wavelengths.
It is subjective to determine the most powerful element in the world, as each element has unique properties and uses. However, in terms of sheer destructive power, nuclear elements like uranium and plutonium are some of the most powerful due to their ability to release vast amounts of energy in nuclear reactions.
The worlds most powerful oil companies are Exxon and Royal Dutch Shell. Exxon has long been one of the most, if not the most, profitable companies in the world, and Royal Dutch Shell is one of the most highly respected companies in the United Kingdom.
As of now, the two most powerful nations are generally considered to be the United States and China. Both countries have significant political, economic, and military influence on a global scale.