[ad_1] The stone tool was attached to a handle made of liquid bitumen with 55 percent ocher added. It is no longer sticky and can be manipulated easily. Credit: Patrick Schmidt Analysis of tools that are 40,000 years old has revealed a surprisingly sophisticated level of construction. A team of researchers has discovered that Neanderthals … Read more
[ad_1] (MENAFN- The Conversation) A new planet begins its life in a rotating circle of gas and dust, a cradle known as a protostellar disk. My colleagues and I have used computer simulations to show that the newborn gaseous planets in these disks probably have surprisingly flattened shapes. This finding, published in Astronomy and Astrophysics … Read more
[ad_1] 8:52 a.m. ET, February 2, 2024 What’s with all the reviews? Friday’s huge jobs number exceeded expectations, and the December data was one of several months in which it was revised in depth. Why are economists’ forecasts often so wrong? It is almost impossible to say with certainty how much prices rose or how … Read more