This week’s Feedback column (that I write) in New Scientist magazine has four segments. Here are bits of each of them: Power meringue — Researchers in South Korea and the US have cooked up a recipe for meringue that you can then use to make electrical batteries…. Public relations equation — “It will cost up to $21.5 […]
Attention electronic engineers – stuck for a suitable material for creating supercapacitor electrodes? Have you thought about carbonized garlic skin? If not, may we recommend a new research paper scheduled for publication in the journal Nanoscale – entitled ‘Synthesis of Garlic Skin-Derived 3D Hierarchical Porous Carbon for High-Performance Supercapacitors’. Researchers Qing Zhang, Kuihua Han, Shijie […]
This video shows how a mechanical “bounce test” can reveal how much electrical charge remains in an ordinary alkaline AA battery: Chemistry World magazine explains: “Inspired by a YouTube video, scientists in the US have confirmed that a simple bounce test can be used as a technique to indicate charge in a battery… A team led by Daniel […]
Yes, in the right configuration, you can electrocute yourself with an apple. So writes 2002 Ig Nobel chemistry prize winner Theo Gray, who explains in more detail how and why one might act on his suggestion. (The photo below shows a variant on the procedure and on the result.)