For example, traders have been switching to microwave communications between trading hubs, because of the advantage which microwaves travelling at near to the speed of light in air, have over fibre optic signals which travel 30–40% slower at the speed of light through glass.
Misalnya, pedagang telah beralih ke komunikasi gelombang mikro antara hub perdagangan, karena keuntungan gelombang mikro bepergian di dekat laju cahaya di udara, lebih dari sinyal serat optik yang bepergian 30-40% lebih lambat dari laju cahaya melalui kaca.