资讯

The North American continent is "dripping" rock into the lower layers of the Earth, new research says, and in the process ...
The slab of rock is applying a downward dragging force on the continent and is "both redirecting the flow of material in the mantle ... part of the North American craton discovery is that the ...
Scientists have discovered that a portion of the North American craton is slowly dripping into Earth's mantle, challenging ...
A newly analyzed medieval manuscript suggests that sailors from the same region as Christopher Columbus may have known about North America more ... this discovery demonstrates how information ...
But now, radiocarbon dating has allowed experts to make a bombshell discovery: The oldest of ... It’s possible that they reached North America more than 32,000 years ago. Now, “we need lots ...
Bureau Veritas is a world leader in testing, inspection and certification services (TIC). Our mission is at the heart of key challenges: quality, health and safety, environmental protection and ...
Archaeologists in West Texas have made an astonishing discovery which sheds light ... researchers fill in previously gaping holes in North America’s prehistoric history.
Stephen has a science degree with a major in physics, an arts degree with majors in English Literature and History and Philosophy of Science and a Graduate Diploma in Science Communication.