There is a general misconception that we cannot travel faster than light or reach distant stars or even galaxies in our own lifetime. The problem is with the word WE. There is no we. People back on Earth and people on an interstellar spaceship see things quite...
We are all taught the Theorem of Pythagoras at school and unless destined to become a physicist, architect or builder probably never want to hear about it again. We might remember that it says that: In a right-angle triangle the square on the hypotenuse is equal to...
