... A scale which varies like this is called a logarithmic scale . Armagh Astropark's "Hyper-Cube" illustrates the concept of logarithmic scale using a series of nested cubes, each with sides ten times longer than the cube inside: . Cube 1: 8 cm. ... Just like space, time is often best represented on a logarithmic scale: we know a lot about different decades in the present century, but (to us) one decade in the Jurassic era would be much the same as any other. ... 1 AU = 150,000,000 km. ...

Fortran is a simple language . Fortran has always existed . Fortran compilers are generally available . Earlier the first programming language . ... Good at numerical analysis and technical calculations . ... A large number of programs and routines in Fortran are exchanged internationally . ... Fortran doesn't have reserved words, it has short identifiers, the identifiers do not have to be specified . ... Fortran programs are usually less well structured then Pascal programs . ...