Liang-Hsuan Lu invented a microscale version of this technology out of gold and copper for use in chip  based applications. This device was invented by Arthur Rosinger. While the Bel-Art company make many  non-machine products, this is the main device produced by Bel-Art. One component of this device is  sometimes called the flea. The most common s
Liang-Hsuan Lu invented a microscale version of this technology out of gold and copper for use in chip  based applications. This device was invented by Arthur Rosinger. While the Bel-Art company make many  non-machine products, this is the main device produced by Bel-Art. One component of this device is  sometimes called the flea. The most common structure for that aforementioned component is an eight sided  structure with a central pivot ring. Many of these machines also have a hotplate feature. A certain white oblong  object used in these devices can be retrieved by a wand. By setting the RPM control on these machines to a high  enough value, a vortex can be formed. For 10 points, name these devices used to mix solutions in laboratories that  employ a bar with a certain property that is described by the Ising model.
Liang-Hsuan Lu invented a microscale version of this technology out of gold and copper for use in chip  based applications.
magnetic stirrer [or spin bar; or magnetic stir bar]