Abstract: The free-space wavelengths in the 300-GHz band are so short that it is extremely challenging to realize phased arrays with a half-wave antenna pitch, required for preventing grating lobes.

Take, for example, a list of employees in an organisation. These could be stored in an array called 'Employees' with the data typestring.

Basic version with multiple balls moving vertically. Controlled via arrow keys; spacebar stops movement. Demonstrates fundamental Pygame setup, event handling, and boundary constraints. balls1.py Adds ...