A hundred years ago this month, a 36-year-old Albert Einstein stood up in front of the Prussian Academy of Sciences in Berlin to present a radical new theory of space, time and gravity: the general theory of relativity.
Seratus tahun lepas, bulan ini, 36 tahun Albert Einstein berdiri di depan Akademi Prussian  Sains di Berlin untuk memyampaikan satu teori baru radikal tentang ruang, masa dan graviti: teori umum relativiti.