Reducere. What is a black hole? What is dark matter and what is it made of? How do scientists discover black holes and dark matter if they can't be seen? Wha...
Reducere. Covering subjects ranging from the personal to the scientific, this is a collection of Stephen Hawking's essays and other pieces. They reveal him a...
transworld publishers ltd, carti, carte straina, mathematics & science, physics
Reducere. Redescopera farmecul lecturii si alege-ti de pe elefant.ro carti in limba engleza scrise de autori consacrati. Iti punem la dispozitie sute de mii ...
Reducere. How much do you know about Crispus Attucks? Find out the facts you need to know about the first person killed in America's fight for independence. ...
Reducere. Spend a day and night in the desert! Learn about this dry habitat through the unique animals that call it home. Stand with meerkats during a watchf...