Change the world
Chemistry
October Waldorf(JHB) Two science shows by G.Rubidge.
(funded by Conchem, gratitude to Peter Buchan)
Nelson Mandela University Chemistry Department: Science Shows at the Michael Mount Waldorf School in Johannesburg during the tailend of the lockdown in October 2021.
Dr Rubidge talking about elemental interactions
Waldorf learners giving their full attention
An enthusiastic volunteer approaches the bench after kitting out in a labcoat and safety goggles
Preparing to demonstrate a chemical process within the internal combustion engine
Clearly exothermic
During the methanol combustion, heated carbon atoms emit a range of wavelengths where yellow & orange dominate
Harnessing the combustion reaction to propel a rocket made from a cold drink bottle
Smile of success - the rocket flew across the stage
Pete Buchan of Conchem assisting with the personal protection equipment
We needed shades for the combustion of magnesium ribbon in pure oxygen
The magnesium burned a lot faster and brighter in 100% O2 compared to air(~21% O2)
Exploring the importance of the solubility of oxygen in water
That “Wow!” moment
How did I do that?