Josip Juraj Strossmayer University of Osijek. Department of Physics. Division of Experimental Physics. Division Chair of Fundamental Physics.
Abstract
Mikrovalno kozmičko zračenje je zračenje koje ispunjava svemir, padajući na Zemlju iz
svakog smjera skoro jedinstvenom gustoćom. Od ranog 20. stoljeća, dva koncepta
transformirala su način razmišljanja astronoma o promatranju svemira. U sklopu prvog
koncepta, svemir je fantastično velik - dio svemira vidljivog danas je sfera radijusa približnih
15 milijardi svjetlosnih godina, i mi vjerujemo da je to samo vrh ledenjaka. Drugi koncept je
da svjetlost putuje ustaljenom brzinom. Jednostavna posljedica ovih ideja je da se gledanjem
u udaljenije predmete vidi sve dalje i dalje u prošlost.The cosmic microwave background radiation is a radiation that fills the universe, falling on
Earth from every direction with nearly uniform intensity. Since early twentieth century, two
concepts have transformed the way astronomers think about observing the universe. The first
is that it is fantastically large; the portion of the universe visible today is a sphere nearly 15
billion light-years in radius, and that, we believe, is just the tip of the iceberg. The second is
that light travels at a fixed speed. A simple consequence of these ideas is that as you look at
more and more distant objects, you see farther and farther back in time
