Why do things fall to the ground without magic? The young magician's apprentice Limbradur is far more interested in the universe and its secrets than...
Who invented time, who invented the clock? Why 1 hour, why 60 minutes, why 60 seconds? Since prehistoric times, man has sought to measure time, to...
In the early 1900s, Albert Einstein developed an idea - called Relativity - that changed our understanding of reality. It explained how both space...
Pub dawb Kev Nkag Mus Siv, Nrhiav txhua yam Tsis muaj Kev Tshaj Tawm, Ntau lab lub npe thiab ntxiv rau txhua hnub, Txhua lub platform thiab Siab Tshaj Tawm, Txhua qhov chaw thiab txhua lub sijhawm
