In this episode of Periodic Videos, professor Sir Martyn Poliakoff from the School of Chemistry at The University of Nottingham describes the process of making a spoon from an alloy that melts in a cup of hot tea. The alloy is called Field's Alloy and it has a melting temperature of 62 °C (144 °F). It was named after its inventor, Simon Quellen Field of SciToys and is made from bismuth, lead, and tin. Here's Simon's article about the alloy.
Chris Notap used a small, cheap vacuum pump to suck the air out of a variety of plastic containers ranging from bread bags to 55 gallon drums.
As the air leaves the chamber, the marshmallow gummy bear bloats. Its candy skin forms fissures. After it reaches its maximum size, the operator opens a valve. The bear implodes under atmospheric pressure, becoming a puddly lump at the bottom of the chamber.
For the newbie, Python can seem like the most intimidating programming language. After all, it can be used to create everything from simple apps to vast networks of web crawlers. But there are fundamental principles that underlie all the uses of this versatile platform, and you can absorb them all with the Python Master Class […]
Building a website on WordPress has always been easy. But if you really want to make your website stand out from the growing crowd, you’re going to need some help. For our money, a subscription to Storeshock WordPress Themes & Elements does the trick almost as well as having a pro designer by your side […]
These days, there isn’t much our iPhone camera can’t do – except feel like an actual phone. Despite years of steadily increasing resolution and image sensing technology, we’re still taking shots awkwardly with two hands, fumbling for the shutter button. Leave it to an avid photographer to design Shuttercase, a versatile iPhone case that solves […]