by msander | Dec 10, 2017 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Every year, the world uses 35 billion barrels of oil. This massive scale of fossil fuel dependence pollutes the earth, and it won’t last forever. On the other hand, we have abundant sun, water and wind, which are all renewable energy sources. So why don’t we exchange...
by msander | Oct 21, 2017 | All Science Teachers
What should you do after your phone goes for a swim? We’re conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciSho… Hosted by: Hank Green ———- Support SciShow by becoming a...
by msander | Sep 21, 2017 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Headlines keep on popping up in the news about exploding cellphones, laptops, and hover-boards. Well folks, this happens to be a phenomenon called thermal runaway, and it has a lot to do with those lithium ion batteries that are inside most of our household tech....
by msander | Jul 19, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry
Introduction When two metals having different electrical potentials are placed in a solution of an electrolyte (such as a lemon or an orange, with its high concentration of citric acid), a crude electrochemical cell is set up. The cell is a voltaic cell resulting from...
by msander | Jan 2, 2017 | All Science Teachers
The Canadian inventor of the modern-day battery powered the consumer electronics revolution that forever changed the holiday shopping season. The alkaline cell he created in 1957 brought portable power to the masses, making batteries a consumer staple used around the...
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