Port’s often relegated to the festive period, and forgotten about for the rest of the year (at least, in the UK). Which is a shame, as if you look beyond the standard ruby port, there are several other delicious types, particularly the varieties that are aged for longer periods of time. There’s also some interesting …
Month: July 2019
Finite element analysis is conducted on an elastic-plastic full stick contact between a rigid flat and a deformable coated sphere with a soft coating. A combined normal and tangential load is applied to the rigid flat, and the sliding inception is assumed as a result of the decreasing tangential stiffness of the contact junction. As …
Element 52 in our International Year of the Periodic Table series is tellurium. This element is found in some types of solar cells, DVD and Blu-Ray discs, and photocopiers. Cadmium telluride is used to make some solar cells. These cells accounted for 8% of all solar cells in 2011. Tellurium isn’t a particularly abundant element …
Element 50 in our International Year of the Periodic Table series is antimony. Used in antiquity as eyeliner and mascara, today antimony finds uses in fire retardants, car batteries and bullets. Antimony is one of the elements known since ancient times. Antimony sulfide (stibnite) was ground into a powder called kohl which could then be used …
Element 50 in our International Year of the Periodic Table series is tin. Tin was formerly used in the statuettes awarded at the Oscars, and is used to make window glass. It’s also found in eponymous tin cans. The Oscar statuettes have been made from bronze with a gold-plating since the 2016 awards. However, prior …
Element 49 in our International Year of the Periodic Table series is indium. Indium makes the touch screens in our electronic devices possible, and is also found in emergency sprinklers and Formula 1 cars. If you’re reading this on a phone or tablet with a touchscreen, the device you’re using contains indium in the form …
Element 49 in our International Year of the Periodic Table series is indium. Indium makes the touch screens in our electronic devices possible, and is also found in emergency sprinklers and Formula 1 cars. If you’re reading this on a phone or tablet with a touchscreen, the device you’re using contains indium in the form …
Element 48 in our International Year of the Periodic Table series is cadmium. Cadmium’s main use is in batteries, and it has previously seen use in paints – however, its toxicity means that many countries are looking to remove it from consumer products. In 2009, over 80% of the world’s cadmium output was used in …
Sunscreen protects our skin from the sun, but there’s also evidence that some of the lotion’s ingredients may damage coral reefs. The latest edition of Periodic Graphics looks at the responsible compounds and efforts to combat the problem. Click through to the Chemical and Engineering News site to view the full graphic. https://www.compoundchem.com/2019/07/21/sunscreen-reefs/
Tribologists use the iconic image of Egyptians lubricating the logs used to move the large stones and stone carvings. To rival that — archaeologists studying Stonehenge discovered that these ancient people may have used pig lard to lubricate sleds used to move the massive stones. Tribologists may need to think about ancient practices more. Stonehenge_from_north,_August_2010.jpg …
