A new kindergarten curriculum introduced this school year in certain cities in certain countries requires the children to learn their alphabet both forwards (starting with A) and backwards (starting with Zed). The reason? To teach children the real meaning of letters rather than their order. Children who learn the typical alphabet song often end up […]
Weather or Not
“The original design was a saturated cadmium cell producing a convenient 1.018638 Volt reference and had the advantage of having a lower temperature coefficient than the previously used Clark cell” (https://en.wikipedia.org/wiki/Weston_cell#Characteristics; 7 Jan 2015).