Star Wars can survive?

Smart robots, light swords, spacecraft that fly faster than light, weapons that destroy the planet . are very familiar technologies for fans of the "Star Wars" series.

In the Star Wars universe, robots like R2-D2, C-3PO and BB-8 are smart, light swords are symbolic weapons of Jedi knights. And the Galaxy Empire as well as the First Order fascist organization use giant systems like the Death Star and Starkiller Base to destroy the opponent's planet.

Such technologies can exist in real life? On CNN, physics expert Don Lincoln of Fermilab, the author of a book about the Higgs particle, answers fans' questions.

BB-8 robot is interesting and full of personality.

Robots are the closest to life in the Star Wars universe. However, in the Star Wars, robots like C-3PO, R2-D2 and BB-8 are not just pure robots, but have unique personalities and impressive abilities.

In life, current robot technology is mainly used in industrial production. International engineers have created a number of human-like robots that can mimic human movements. And international science is making tremendous progress on artificial intelligence.

Therefore, it is likely that in the distant future, man-made robots will be as impressive as robots in Star Wars.

Light swords are the special attraction of Star Wars.

The light sword is the iconic weapon of the Star Wars franchise. The Jedi knights used them to protect justice and righteousness in the galaxy. It is also the favorite weapon of the evil Sith lords, who use the Shadow Force to scatter.

Lincoln said a light sword needs to contain at least 20 megawatts of electricity, which is equivalent to electricity serving about 14,000 US households. That huge source of energy is stored in a tiny device, neatly in one's hand.

Even nuclear power cannot meet those requirements. Also, the tremendous amount of heat emitted from this device could burn the hand of the Jedi knight. The sword of light is really 'cool' , but it's impossible.

Spacecraft flies faster than light

Star Wars spacecraft flew faster than light.

In Star Wars, spacecraft equipped with 'hyper drive' easily fly to every planet in the galaxy. The Galaxy War of Emperor Palpatine and Darth Vader control the whole galaxy. Take the Milky Way as an example. It has a diameter of 100,000 light-years. That means light at a speed of 300,000 km / s takes 100,000 years to go through the Milky Way.

Thus, the spacecraft must fly at a much faster speed than light to be able to move to planets in a short period of time. But according to Einstein's theory of relativity, a particle with a resting mass of zero needs infinite energy to reach the speed of light.

This is simply impossible. No hyper drive device will exist. You have a long life like Yoda can't wait for the day when technology allows faster movement of light to come true.

Death Star

The Death Star space station is capable of destroying the planet .

In the first 3 Star Wars episodes, the Galaxy Empire produced the Death Star space station, which can fire lasers that destroy an entire planet. In The Force Awakens, The First Order builds the Starkiller Base base on a planet, enough to fire lasers at the same time destroying several different planets.

In order to destroy an Earth-sized planet, the Death Star must collect energy with all the sun emitting within a week. Starkiller Base is even more powerful, draining a star's energy (emitted for billions of years).

Death Star and Starkiller Base must store those huge energies in their hearts. 'That's absolutely crazy,' said physicist Lincoln. Lehigh University experts each estimated the cost to build a Death Star space station up to 852 million billion US dollars, which is 13,000 more than global GDP.

However, fans do not enjoy Star Wars to be educated about science and technology.'Don't worry about science, just enjoy it. May the Power of God bless you, ' wrote physicist Lincoln.