One of the most popular rides at fairs and amusement parks, the Ferris wheel is usually considered one of the safest, a ride for all ages. However, as sometimes happens with roller coasters and other such amusements, one Ferris wheel at a fair in Downpatrick, Northern Ireland, recently got stuck upside-down. The cars were filled […]
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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).