A real light sword? All hope in science

What exactly is a light sword? To sound scientifically, it would be easiest to say that his blade is a form of concentrated energy stored in the force field. This obviously does not explain because, at least now, we can not do this type of construction. But maybe?

The sword, which is illuminated by the color of the blade, is able to cut everything apart from the blade of another light sword is the dream of many Star Wars fans, but if such a weapon was indeed created, they would certainly be interested not only in gadgets. Is it possible at all? It turns out that in theory yes, although a real light sword, which functions to correspond to this film, would have to visually slightly differ from it.

Probably the most popular belief in light swords is that their blade is a laser. Despite the visual similarity and the fact that lasers are actually used for eg cutting complex shapes from sheet metal sheets, the basic aspects such as the fact that the laser beam that is not absorbed or reflected will continue indefinitely, the bright color visible only in Darkness, the two beams in the event of a collision just to penetrate, quickly crossed this hypothesis.

The light-emitting glow of the sword could be created using a plasma. Ionized matter, which we observe even when looking at neon light, can also handle most materials, which is used in plasma burners.

The stream from the burner, despite its limited length, would be far to the slender Jedi’s sword blade, so it would be necessary to use an electromagnetic field, in addition to keeping the hot rays away from the hand of the knight.

So we have an effective blade, however, which can not, however, pair up another blow. So you need a hard core capable of withstanding extreme temperatures. This limits the choice to … pottery. To make the design meaningful when the sword is turned off, the ceramic core would have – like many toys pretending to be luminous weapons – a telescopic structure that hides in the handle.

Finally, there is the problem of powering the device with energy that could be stored in the handle. Without going into details, it can safely be assumed that sufficiently destructive sword blade power will reach around 20 MW, which would be sufficient to feed a small town.

Astronomers have observed a giant supernova explosion

The gigantic and brightest of the stars so far detected, so-called. The supernova, detected an international team of astronomers – reported in his latest issue of the journal “Science”.

The explosion was so powerful that it would easily overwhelm the entire Milky Way galaxy in which the Solar System is located. A gigantic explosion occurred – according to preliminary estimates – in a galaxy 3.8 billion light years from Earth.

This extraordinary phenomenon was observed in the ASASSN (All-Sky Automated Survey for SuperNovae) program last year with a network of telescopes all over the Earth. According to “Science” this was “the most powerful supernova explosion ever observed throughout human history.”

The explosions of supernovae, massive and extremely massive stars torn by internal forces, which appear to be stronger than gravity trying to prevent them, are rarely observed.

The supernova explosion is usually 20 times brighter than the light emitted by the average spiral galaxy, which includes the Milky Way. Sometimes the explosion is 50 times brighter, which is 570 billion times brighter than our sun.

The last explosion that was named ASASSN-15lh was twice as strong as the previous record.

One of the astronomers participating in the project, Sobo Dong from Peking University, said he was so fascinated by the phenomenon that he “could not sleep all night”.

Another scientist, Benjamin Shappee of the Carnegie Institution for Science in Pasadena (California), described the outbreak as “surreal”. “This kind of discovery is the reason I’m an astronomer. Nature is very smart and sometimes has more imagination than we do, “he wrote in an e-mail.

Scientists agree that the explosion was so powerful and emitted so much energy that he questioned all of the current theories about supernovae. Nothing is known in particular about the mechanism of the phenomenon or the source of such an unimaginable amount of energy.

Scientists suspect that there may be similarly powerful stars in the universe that might explode at any moment. More detailed observations are planned, using the orbital Hubble telescope. According to Donga, the ASASSN-15lh explosion “can revise our approach to supernova phenomena.”