Sublime

“The High-Tech Level: Spacecraft speed achieves one thousand times the third cosmic velocity, or sixteen thousand kilometers per second, which is five percent of the speed of light. Spacecraft are fully equipped with life support. Under these conditions, the combat radius extends to the Oort Cloud11, with preliminary interstellar navigation capabil

Albert Einstein postulated that nothing can travel faster than the speed of light. The speed of light is nearly 300 million meters per second. But even that is not as fast as “instantaneous.

The moment I entered lightspeed, I felt myself change. I realized that I could, in my lifetime, leap across space-time and reach the edge of the cosmos and the end of the universe. Things that used to seem only philosophical suddenly became concrete and practical.”

but the core parameter will be the speed and range of a ten-kiloton-class spaceship.

Lorentzian relativity includes an upper limit on the relative speed between two objects, given by the speed of light.

A lightspeed ship could go from the Earth to Jupiter in less than an hour, and the advance warning system would be more than sufficient. Powerful and wealthy individuals who possessed lightspeed ships could thus live in comfort on the Earth and then escape at the last minute, without regard for the billions left behind. This was a prospect society

What is this “zero mass”? The masses given here are the masses of the particles at rest. The fact that a particle has zero mass means, in a way, that it cannot be at rest. A photon is never at rest; it is always moving at 186,000 miles a second.