books.google.com/books?id=0-f...
books.google.com/books?id=0-f...
www.youtube.com/embed/WZskjL...
www.youtube.com/embed/WZskjL...
By the time the waves reached North America, they are far too small to be felt by people, but can still be detected by seismic instruments. 🧪
By the time the waves reached North America, they are far too small to be felt by people, but can still be detected by seismic instruments. 🧪
ok then explain this
ok then explain this