textos de alunos: "Take a minute, take five!"

 Mais um texto, desta vez de João Leite, 11ºH,. subcategoria "Did you know? Now you know".

The Big Bang Echo

Did you know that 1% of the radio frequency existing on planet Earth is a consequence of The Cosmic Microwave Background (CMB) also called The Big Bang Echo?

Between 15 and 18 billion years ago, the universe had a major explosion and from that blast there was some electromagnetic radiation sent out throughout the whole galaxy. That frequency is 160.4 GHz but we can hear it in all sorts of communication gadgets that use radio. 

And if you didn't know, now you know!

                                                                                                                                                                                                                                                                               João Leite, 11ºH

cortesia do envio de Constância Silva, docente de Inglês e colaboradora do CRESCER