Circuits final is tonight. I’ve been studying for so long and I’m feeling pretty prepared. I’ve made multiple outlines, flash cards, worked a ton of practice problems, and worked an old test.
Michael Faraday used
to keep a froggery, full of live frogs
How would you measure electricity before the voltammeter has
been invented? Faraday, and his mentor Humphry Davy, had a solution. Borrowing
from the famous experiments of Luigi Galvani, they kept a ready stock of frogs
When he had a circuit that needed testing, Faraday would carefully
select a frog, tenderly pick it out of the froggery, and delicately smash it’s
He’d then place metal plates under the frog’s leg muscles
and link to them to his circuit. If electricity was flowing, the frog legs
For several years, this was the only reliable method of
testing for electricity. Luckily, he soon invented the voltammeter in 1833,
which quantified electrical charge as it passed through chemical compounds and
measured the gas given off.
The eye opening documentary What’s In My Baggie follows five friends as they hit the festival circuit testing the purity of concert goers drugs. The opening sound bite says it all - “All these kids thought they were high on molly. So, every single sample that I tested was Methylone Unbelievable, man. Unbelievable. 100% methylone.“