Although there are many types of energy, the most efficient forms are renewable: hydro-thermal, tidal, wind, and solar. Solar energy has been proven to be the most efficient and effective among renewable energy sources for home and commercial use.

There are two types of Electricity, Static Electricity and Current Electricity. Static Electricity is made by rubbing together two or more objects and making friction while Current electricity is the flow of electric charge across an electrical field.

There are two kinds of current electricity: direct current (DC) and alternating current (AC). With direct current, electrons move in one direction.

Quasars inhabit the centers of active galaxies and are among the most luminous, powerful, and energetic objects known in the universe, emitting up to a thousand times the energy output of the Milky Way, which contains 200–400 billion stars.

Nuclear advocates claim nuclear is still needed because renewables are intermittent and need natural gas for backup. However, nuclear itself never matches power demand so it needs backup. Thus, subsidizing nuclear would result in higher emissions and costs over the long term than replacing nuclear with renewables.

In the U.S., nuclear power plants have generated almost 20 percent of electricity for the last 20 years. Most of the nuclear plants operating today were designed to last 25 to 40 years and with an average age of 35 years, a quarter of them in developed countries will likely be shut down by 2025.

Produces Radioactive Waste Although nuclear energy production does not create any emissions, it does produce radioactive waste that must be securely stored so it doesn’t pollute the environment. Storage of radioactive waste is a major challenge facing nuclear power plants.

Top 15 Nuclear Generating Countries – by Generation

By far the largest nuclear electricity producers are the United States with 809,359 GWh of nuclear electricity in 2019, followed by France with 382,403 GWh. As of December 2019, 455 reactors with a net capacity of 392,779 MWe are operational, and 54 reactors with net capacity of 57,441 MWe are under construction.

The world’s biggest energy-producing countries: Top ten by nuclear capacity

• United States – 98.2GW.
• France – 63.1GW.
• China – 47.5GW.
• Japan – 32GW.
• Russia – 28.5GW.
• South Korea – 23.2GW.
• Canada – 13.6GW.
• Ukraine – 13.1GW.

Israel has not publicly conducted a nuclear test, does not admit or deny having nuclear weapons, and states that it will not be the first to introduce nuclear weapons in the Middle East. Nevertheless, Israel is universally believed to possess nuclear arms, although it is unclear exactly how many.

the United States

Five superpowers ruling the world in 2050

• China.
• India.
• US.
• Indonesia.
• Brazil.
• Russia.
• Mexico.
• Japan.

Global Peace Index rankings (2008–2019)

China has the strongest military in the world, scoring 82 out of 100 points in the index, it noted.

The 5 Most Powerful Armies in the World

• 5) Japan. Japan’s armed forces have to contend with a volatile neighbor in North Korea. (
• 4) India. India has an estimated 1,444,000 people actively serving in its armed forces. (
• 3) China.
• 2) Russia.
• 1) United States.

United States