Researchers, inspired by diving bell spiders and rafts of fire ants, have created a metallic structure that is so water repellent, it refuses to sink—no matter how often it is forced into water or how much it is damaged or punctured.
Could this lead to an unsinkable ship? A wearable flotation device that will still float after being punctured? Electronic monitoring devices that can survive in long term in the ocean? All of the above, says Chunlei Guo, professor of optics and physics, whose lab describes the structure in ACS Applied Materials and Interfaces
.The structure uses a groundbreaking technique the lab developed for using femtosecond bursts of lasers to “etch” the surfaces of metals with intricate micro- and nanoscale patterns that trap air and make the surfaces superhydrophobic, or water repellent.
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2019 is the International Year of the Periodic Table of Elements. Here, we discuss the history of the periodic table as well as the designated year.
Elements 113, 115, 117 and 118 — fill out the seventh row of the periodic table of the elements. All are superheavies. That’s why they sit at the base right of the bench (see above). Naming rights classically go to those who find an element. And that’s what happen here. Element 113 was found by scientists at RIKEN in Wako, Japan. They have requested to call it Nihonium, to be shortened as Nh. This name comes from Nihon. It’s Japanese for “Land of the Rising Sun,” which is what a lot of people call Japan. Element 115 will turn out to be Moscovium, abridged as Mc. It refers to the Moscow area. And that was where the combined organization for Nuclear Research is based (Dubna). It exposed number 115 in a teamwork with researchers at Lawrence Livermore National Laboratory in California and Oak Ridge National Laboratory (ORNL) in Tennessee. That’s why Tennessee also gets a periodic table entry. It’s the home location of ORNL, Vanderbilt University & the University of Tennessee. So element 117 will become Tennessine and will be represented by the symbol Ts.
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Supermarket salads are fuelling plant bugs that could make people ill, warns a new report.
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