That's a more complicated question than you think, as electromagnetic radiation (light) behaves both like a particle (called a photon) and a wave. It does travel on a straight line, unless deviated by gravity or magnetic fields and even then you could argue it's still travelling in a straight line through space in the case of gravity deviation.
You're a moron if you think a pendrive is a suitable backup device. It'd have cost you a single Google search and 5 minutes to source a more appropriate medium.
Ariquitaun t1_iwywdy1 wrote
Reply to how does light expand? by Fine_Play_8770
That's a more complicated question than you think, as electromagnetic radiation (light) behaves both like a particle (called a photon) and a wave. It does travel on a straight line, unless deviated by gravity or magnetic fields and even then you could argue it's still travelling in a straight line through space in the case of gravity deviation.