Join us this week for a one-of-a-kind roundtable discussion about experiences of high strangeness in childhood and beyond. Sometimes commonality lives in the differences. What does that mean? We will find out together.
read more
Researchers at RMIT University in Melbourne, Australia has developed a new method that can allow liquid metal to self-arrange its own shape, using external chemical inputs. The substance is made up of a highly-conductive liquid-metal core, surrounded by a film of semiconducting oxide skin, allowing the arrangement to be completely malleable, resembling the mimetic polyalloy used by the T-1000 from the Terminator movies.
The technique used to cause the metal to rearrange its shape involves changing the chemical makeup of the water that the metal is kept in, altering the pH levels and salt content of the solution. This prompts the skin surrounding the metal to change its shape, to the point where this change can cause the metal blob can propel itself.
read more
When we think of woolly mammoths, what typically comes to mind is the classic hairy pachyderm that inhabited what is now Siberia’s tundra, megafauna that went extinct shortly after the end of the Pleistocene, nearly 12,000 years ago. But a number of mammoth species survived for thousands of years into the current era, including a colony of mammoths on Russia’s Wrangel Island that did not disappear until 1650 BC.
read more
Discovered in September of 1999, asteroid 101955 Bennu is a 500-meter (1,640 foot) asteroid that crosses Earth’s orbit once every six years. Because it has been observed for 17 years, astronomers have been able to plot its orbit very accurately, and have found that it will make a series of extremely close passes to the Earth between 2169 and 2199, but they calculate that the chance of an impact is only 1-in-2,700.
Unfortunately, this possibility of an impact has fueled the circulation of a great deal of misinformation on the internet, with most articles illustrating a civilization-ending impact to take place in 2135, with the equivalent energy of 3 billion tons of TNT — but this figure appears to be grossly erroneous.
read more