![]() This may seem to throw a logistical spanner in the works of future space colonization or travel outside of our solar system. On a larger scale, signals to the nearest star to Earth, Proxima Centauri, would take about 4.24 years to get there. That’s only Mars, which in astronomical terms, is in a spitting distance from Earth. At such speed, it would take an average of 13 minutes for a signal to travel from Earth to Mars or vice versa. The speed of radio signals is that of light. When that dream comes true, communication with Earth would be one crucial component of the endeavor. ![]() ![]() It seems increasingly likely that, one day, we may set foot on Martian soil and establish a permanent presence there. Light is not Fast Enough: FTL Quantum Communication If Relativity puts a limit on speed, quantum mechanics not only allows for a solution to the communication time delay issue, it may also enable simultaneous two-way communication. However, when it comes to communication, especially when we consider it from an astronomical point of view, it may not be fast enough. How fast could light need to be? It may seem like it should be fast enough for anything. ![]() Actually, if we refer to Einstein’s Relativity, nothing can travel faster than light in the universe. A new study shows how, thanks to the “superposition principle” in quantum theory, information can travel in both directions at the same time using only one particle.Īt 186,282 miles per second, light is pretty fast. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |